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FORM 10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended June 30, 2005

¨	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number 0-50209

BOSTON PROPERTIES LIMITED PARTNERSHIP

(Exact name of Registrant as specified in its Charter)


Delaware		04-3372948
(State or other jurisdiction of incorporation or organization)		(IRS Employer Id. Number)

111 Huntington Avenue
Boston, Massachusetts		02199
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (617) 236-3300

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act.) Yes x No ¨

BOSTON PROPERTIES LIMITED PARTNERSHIP

FORM 10-Q

for the quarter ended June 30, 2005

TABLE OF CONTENTS


		Page
PART I.	FINANCIAL INFORMATION

ITEM 1.	Consolidated Financial Statements (Unaudited):

	a) Consolidated Balance Sheets as of June 30, 2005 and December 31, 2004	1

	b) Consolidated Statements of Operations for the three and six months ended June 30, 2005 and 2004	2

	c) Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2005 and 2004	3

	d) Consolidated Statements of Cash Flows for the six months ended June 30, 2005 and 2004	4

	e) Notes to the Consolidated Financial Statements	6

ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	24

ITEM 3.	Quantitative and Qualitative Disclosures about Market Risk	57

ITEM 4.	Controls and Procedures	58

PART II.	OTHER INFORMATION

ITEM 1.	Legal Proceedings	59

ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	59

ITEM 3.	Defaults Upon Senior Securities	59

ITEM 4.	Submission of Matters to a Vote of Security Holders	59

ITEM 5.	Other Information	59

ITEM 6.	Exhibits	60

SIGNATURES		61

PART I. FINANCIAL INFORMATION

ITEM 1—Consolidated Financial Statements.

BOSTON PROPERTIES LIMITED PARTNERSHIP

CONSOLIDATED BALANCE SHEETS

(Unaudited)

(in thousands, except for unit amounts)


	June 30, 2005			December 31, 2004
ASSETS
Real estate, at cost	$	8,615,239		$	8,918,480
Construction in progress		99,727			35,063
Land held for future development		235,409			218,401
Less: accumulated depreciation		(1,185,771	)		(1,139,778	)

Total real estate		7,764,604			8,032,166
Cash and cash equivalents		507,182			239,344
Cash held in escrows		29,077			24,755
Investments in marketable securities		25,000			—
Tenant and other receivables (net of allowance for doubtful accounts $2,698 and $2,879, respectively)		28,230			25,500
Accrued rental income (net of allowance of $4,838 and $4,252, respectively)		280,257			251,236
Deferred charges, net		243,674			254,950
Prepaid expenses and other assets		43,042			38,630
Investments in unconsolidated joint ventures		82,810			80,955

Total assets	$	9,003,876		$	8,947,536

LIABILITIES, REDEEMABLE PARTNERSHIP UNITS AND PARTNERS’ CAPITAL
Liabilities:
Mortgage notes payable	$	3,427,892		$	3,541,131
Unsecured senior notes (net of discount of $4,135 and $4,317, respectively)		1,470,865			1,470,683
Unsecured line of credit		—			—
Accounts payable and accrued expenses		92,649			94,451
Distributions payable		95,597			91,428
Interest rate contract		—			1,164
Accrued interest payable		47,744			50,670
Other liabilities		132,427			91,300

Total liabilities		5,267,174			5,340,827

Commitments and contingencies		—			—

Minority interests in property partnerships		20,602			26,912

Redeemable partnership units—4,082,335 preferred units outstanding (5,357,399 common units at redemption value, if converted) at June 30, 2005 and December 31, 2004, and 21,628,748 and 21,722,004 common units outstanding at redemption value at June 30, 2005 and December 31, 2004, respectively		1,889,030			1,751,225

Partners’ capital—1,330,321 and 1,320,425 general partner units and 110,073,052 and 109,000,060 limited partner units outstanding at June 30, 2005 and December 31, 2004, respectively (such amounts are inclusive of accumulated other comprehensive loss and unearned compensation of $15,288 and $5,503, respectively at June 30, 2005 and $15,637 and $6,103, respectively at December 31, 2004)		1,827,070			1,828,572

Total liabilities, redeemable partnership units and partners’ capital	$	9,003,876		$	8,947,536

The accompanying notes are an integral part of these financial statements.

BOSTON PROPERTIES LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)


	Three months ended June 30,						Six months ended June 30,
	2005			2004			2005			2004
	(in thousands, except for per unit amounts)
Revenue
Rental:
Base rent	$	277,360		$	263,559		$	556,109		$	517,291
Recoveries from tenants		41,856			39,261			85,196			79,842
Parking and other		14,248			14,083			28,173			27,271

Total rental revenue		333,464			316,903			669,478			624,404
Hotel revenue		20,066			19,166			34,068			32,344
Development and management services		4,137			5,961			8,673			9,283
Interest and other		2,937			1,090			4,574			8,618

Total revenue		360,604			343,120			716,793			674,649

Expenses
Operating:
Rental		106,576			101,049			215,177			201,171
Hotel		13,979			13,376			26,265			25,054
General and administrative		14,252			12,493			29,065			25,093
Interest		78,233			74,789			157,587			149,094
Depreciation and amortization		66,489			59,941			133,922			115,648
Losses from early extinguishments of debt		12,896			—			12,896			6,258

Total expenses		292,425			261,648			574,912			522,318

Income before minority interests in property partnerships, income from unconsolidated joint ventures, gains on sales of real estate and land held for development, discontinued operations and preferred distributions and allocation of undistributed earnings		68,179			81,472			141,881			152,331
Minority interests in property partnerships		1,472			1,292			3,124			1,677
Income from unconsolidated joint ventures		847			879			2,182			2,256

Income before gains on sales of real estate and land held for development, discontinued operations and preferred distributions and allocation of undistributed earnings		70,498			83,643			147,187			156,264
Gains on sales of real estate		126,978			1,658			126,978			9,822
Gains on sales of land held for development		—			—			1,445			—

Income before discontinued operations and preferred distributions and allocation of undistributed earnings		197,476			85,301			275,610			166,086
Discontinued operations:
Income (loss) from discontinued operations		—			856			(486	)		2,846
Gains on sales of real estate from discontinued operations		10,671			23,923			10,671			26,996

Net income before preferred distributions and allocation of undistributed earnings		208,147			110,080			285,795			195,928
Preferred distributions and allocation of undistributed earnings		(8,213	)		(5,211	)		(11,466	)		(10,364	)

Net income available to common unitholders	$	199,934		$	104,869		$	274,329		$	185,564

Basic earnings per common unit:
Income available to common unitholders before discontinued operations	$	1.43		$	0.62		$	2.00		$	1.23
Discontinued operations		0.08			0.19			0.08			0.24

Net income available to common unitholders	$	1.51		$	0.81		$	2.08		$	1.47

Weighted average number of common units outstanding		132,522			129,116			132,176			126,050

Diluted earnings per common unit:
Income available to common unitholders before discontinued operations	$	1.40		$	0.61		$	1.96		$	1.22
Discontinued operations		0.08			0.19			0.08			0.23

Net income available to common unitholders	$	1.48		$	0.80		$	2.04		$	1.45

Weighted average number of common and common equivalent units outstanding		134,861			130,916			134,439			128,252

The accompanying notes are an integral part of these financial statements

BOSTON PROPERTIES LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)


	Three months ended June 30,				Six months ended June 30,
	2005		2004		2005		2004
	(in thousands)
Net income before preferred distributions and allocation of undistributed earnings	$	208,147	$	110,080	$	285,795	$	195,928
Other comprehensive income:
Amortization of interest rate contracts		175		175		349		349

Other comprehensive income		175		175		349		349

Comprehensive income	$	208,322	$	110,255	$	286,144	$	196,277

The accompanying notes are an integral part of these financial statements

BOSTON PROPERTIES LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)


	For the six months ended June 30,
	2005			2004
	(in thousands)
Cash flows from operating activities:
Net income before preferred distributions and allocation of undistributed earnings	$	285,795		$	195,928
Adjustments to reconcile net income before preferred distributions and allocation of undistributed earnings to net cash provided by operating activities:
Depreciation and amortization		134,101			116,921
Non-cash portion of interest expense		2,547			2,463
Non-cash compensation expense		4,092			2,212
Losses from early extinguishments of debt		2,042			—
Minority interests in property partnerships		(3,124	)		7,275
Earnings in excess of distributions from unconsolidated joint ventures		63			58
Gains on sales of real estate and land held for development		(139,094	)		(45,659	)
Change in assets and liabilities:
Cash held in escrows		(4,322	)		(6,567	)
Tenant and other receivables, net		(6,940	)		6,788
Accrued rental income, net		(40,359	)		(26,682	)
Prepaid expenses and other assets		(6,007	)		5,155
Accounts payable and accrued expenses		1,552			(10,388	)
Interest rate contract		(1,164	)		(3,391	)
Accrued interest payable		(2,926	)		(613	)
Other liabilities		(3,837	)		(8,623	)
Tenant leasing costs		(17,443	)		(24,291	)

Total adjustments		(80,819	)		14,658

Net cash provided by operating activities		204,976			210,586

Cash flows from investing activities:
Acquisitions/additions to real estate		(154,574	)		(156,944	)
Investments in marketable securities		(25,000	)		—
Net investments in unconsolidated joint ventures		(323	)		(714	)
Net proceeds from the sales of real estate and land held for development		472,647			90,555

Net cash provided by (used in) investing activities		292,750			(67,103	)

The accompanying notes are an integral part of these financial statements

BOSTON PROPERTIES LIMITED PARTNERSHIP

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)


	For the six months ended June 30,
	2005			2004
	(in thousands)
Cash flows from financing activities:
Borrowings on unsecured line of credit		—			140,000
Repayments of unsecured line of credit		—			(203,000	)
Proceeds from mortgage notes payable		549,310			69,192
Repayments of mortgage notes payable		(662,549	)		(134,335	)
Proceeds from a real estate financing transaction		45,375			—
Distributions		(178,893	)		(165,847	)
Net proceeds from the issuance of common units		264			291,076
Partner contributions		26,564			77,110
Distributions to minority interest holders, net		(5,670	)		(8,841	)
Deferred financing costs		(4,289	)		(3,826	)

Net cash provided by (used in) financing activities		(229,888	)		61,529

Net increase in cash and cash equivalents		267,838			205,012
Cash and cash equivalents, beginning of period		239,344			22,686

Cash and cash equivalents, end of period	$	507,182		$	227,698

Supplemental disclosures:
Cash paid for interest	$	159,525		$	155,614

Interest capitalized	$	1,559		$	8,370

Non-cash investing and financing activities:
Additions to real estate included in accounts payable	$	3,944		$	7,023

Mortgage notes payable assumed in connection with the acquisition of real estate	$	—		$	107,894

Mortgage note payable assigned in connection with the sale of real estate	$	—		$	5,193

Distributions declared but not paid	$	95,597		$	91,350

Conversions of Redeemable partnership units to Partners’ capital	$	7,120		$	42,553

Issuance of restricted securities to employees and directors	$	12,751		$	9,708

The accompanying notes are an integral part of these financial statements

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Organization

Boston Properties Limited Partnership (the “Company”), a Delaware limited partnership, is the entity through which Boston Properties, Inc., a self-administered and self-managed real estate investment trust (“REIT”), conducts substantially all of its business and owns (either directly or through subsidiaries) substantially all of its assets. Boston Properties, Inc. is the sole general partner of the Company and at June 30, 2005 owned an approximate 80.5% (79.6% at June 30, 2004) general and limited partnership interest in the Company. Partnership interests in the Company are denominated as “common units of partnership interest” (also referred to as “OP Units”), “long term incentive units of partnership interest” (also referred to as “LTIP Units”) or “preferred units of partnership interest” (also referred to as “Preferred Units”).

Unless specifically noted otherwise, all references to OP Units exclude units held by Boston Properties, Inc. A holder of an OP Unit may present such OP Unit to the Company for redemption at any time (subject to restrictions agreed upon at the time of issuance of OP Units to particular holders that may restrict such right for a period of time, generally one year from issuance). Upon presentation of an OP Unit for redemption, the Company must redeem such OP Unit for cash equal to the then value of a share of common stock of Boston Properties, Inc. (“Common Stock”). In lieu of a cash redemption, Boston Properties, Inc. may elect to acquire such OP Unit for one share of Common Stock. Because the number of shares of Common Stock outstanding at all times equals the number of OP Units that Boston Properties, Inc. owns, one share of Common Stock is generally the economic equivalent of one OP Unit, and the quarterly distribution that may be paid to the holder of an OP Unit equals the quarterly dividend that may be paid to the holder of a share of Common Stock. An LTIP Unit is generally the economic equivalent of a share of restricted common stock of Boston Properties, Inc. LTIP Units, whether vested or not, will receive the same quarterly per unit distributions as OP Units, which equal per share dividends on Common Stock (See Note 12).

At June 30, 2005, there was one series of Preferred Units outstanding (i.e., Series Two Preferred Units). The Series Two Preferred Units bear a distribution that is set in accordance with an amendment to the partnership agreement of the Company. Preferred Units may also be converted into OP Units at the election of the holder thereof or the Company in accordance with the amendment to the partnership agreement (See also Note 8).

All references to the Company refer to Boston Properties Limited Partnership and its consolidated subsidiaries, collectively, unless the context otherwise requires.

Properties

At June 30, 2005, the Company owned or had interests in a portfolio of 122 commercial real estate properties (125 and 126 properties at December 31, 2004 and June 30, 2004, respectively) (the “Properties”) aggregating approximately 41.2 million net rentable square feet (approximately 44.1 million and 43.6 million net rentable square feet at December 31, 2004 and June 30, 2004, respectively), including two properties under construction and one redevelopment/expansion project collectively totaling approximately 0.7 million net rentable square feet and structured parking for approximately 28,152 vehicles containing approximately 8.3 million square feet. During the three months ended June 30, 2005, the Company sold three Class A office properties aggregating approximately 1.7 million net rentable square feet. At June 30, 2005, the Properties consist of:

•

116 office properties, including 99 Class A office properties (including two properties under construction) and 17 Office/Technical properties;

•

three hotels;

•

two retail properties; and

•

one industrial property.

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The Company owns or controls undeveloped land parcels totaling approximately 531.7 acres. In addition, the Company has a 25% interest in the Boston Properties Office Value-Added Fund, L.P. (the “Value-Added Fund”), which is a strategic partnership with two institutional investors through which the Company intends to pursue the acquisition of value-added investments in assets within its existing markets. The Company’s investments through the Value-Added Fund are not included in its portfolio information or any other portfolio level statistics. At June 30, 2005, the Value-Added Fund had an investment in an office complex in Herndon, Virginia.

The Company considers Class A office properties to be centrally located buildings that are professionally managed and maintained, that attract high-quality tenants and command upper-tier rental rates, and that are modern structures or have been modernized to compete with newer buildings. The Company considers Office/Technical properties to be properties that support office, research and development and other technical uses.

2. Basis of Presentation and Summary of Significant Accounting Policies

Boston Properties, Inc. does not have any other significant assets, liabilities or operations, other than its investment in the Company, nor does it have employees of its own. The Company, not Boston Properties, Inc., executes all significant business relationships. All majority-owned subsidiaries and affiliates over which the Company has financial and operating control, and variable interest entities (“VIE”s) in which the Company has determined it is the primary beneficiary, are included in the consolidated financial statements. All significant intercompany balances and transactions have been eliminated in consolidation. The Company accounts for all other unconsolidated joint ventures using the equity method of accounting. Accordingly, the Company’s share of the earnings of these joint ventures and companies is included in consolidated net income.

The accompanying interim financial statements are unaudited; however, the financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission. Accordingly, they do not include all of the disclosures required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of management, all adjustments (consisting solely of normal recurring matters) necessary for a fair presentation of the financial statements for these interim periods have been included. The results of operations for the interim periods are not necessarily indicative of the results to be obtained for other interim periods or for the full fiscal year. These financial statements should be read in conjunction with the Company’s financial statements and notes thereto contained in the Company’s annual report on Form 10-K for its fiscal year ended December 31, 2004.

Summary of Significant Accounting Policies

Stock-based employee compensation plan

At June 30, 2005, Boston Properties, Inc. has stock-based employee compensation plans. Effective January 1, 2005, the Company adopted the fair value recognition provisions of Financial Accounting Standards Board (“FASB”) Statement of Financial Accounting Standards (“SFAS”) No. 123, “Accounting for Stock-Based Compensation,” as amended by SFAS No. 148, “Accounting for Stock-Based Compensation—Transition and Disclosure, an amendment of FASB Statement No. 123,” using the modified prospective application method for stock compensation awards. In addition, effective January 1, 2005, the Company adopted early SFAS No. 123 (revised) (“SFAS No. 123R”), “Share-Based Payment,” which revised the fair value based method of accounting for share-based payment liabilities, forfeitures and modifications of stock-based awards and clarified SFAS No. 123’s guidance in several areas, including measuring fair value, classifying an award as equity or as a liability and attributing compensation cost to reporting periods. In 2003, Boston Properties, Inc. transitioned to granting restricted stock and/or LTIP Units, as opposed to granting stock options, as its primary vehicle for employee

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

equity compensation under its stock-based employee compensation plan. The Company had previously accounted for its stock-based employee compensation plans under the recognition and measurement principles of the Accounting Principles Board (“APB”) Opinion No. 25, “Accounting for Stock Issued to Employees,” and related interpretations. All outstanding options had an exercise price equal to the market value of the underlying common stock on the date of grant, and all outstanding options are currently exercisable. As a result, the following table only illustrates the effect on net income available to common unitholders and earnings per common unit if the Company had applied the fair value recognition provisions to stock-based employee compensation for the three and six months ended June 30, 2004.


	For the three months ended June 30,					For the six months ended June 30,
	2005		2004			2005		2004
	(in thousands, except for per unit amounts)
Net income available to common unitholders	$	199,934	$	104,869		$	274,329	$	185,564
Deduct:
Total stock-based employee compensation expense determined under the fair value method for all awards		—		(469	)		—		(938	)

Pro forma net income available to common unitholders	$	199,934	$	104,400		$	274,329	$	184,626

Earnings per unit:
Basic—as reported	$	1.51	$	0.81		$	2.08	$	1.47

Basic—pro forma	$	1.51	$	0.81		$	2.08	$	1.46

Diluted—as reported	$	1.48	$	0.80		$	2.04	$	1.45

Diluted—pro forma	$	1.48	$	0.80		$	2.04	$	1.44

3. Real Estate Activity During the Six Months Ended June 30, 2005

Dispositions

On February 23, 2005, the Company sold a parcel of land at the Prudential Center located in Boston, Massachusetts for a net sale price of approximately $31.5 million and an additional obligation of the buyer to fund an estimated $18.6 million of future costs at the Prudential Center (of which approximately $14.9 million has been received as of June 30, 2005) for aggregate proceeds of $50.1 million. Due to the structure of the transaction and certain continuing involvement provisions related to the development of the property, this transaction does not qualify as a sale for financial reporting purposes and has been accounted for as a financing transaction. Under the financing method, the cost of real estate and other assets totaling approximately $41.1 million continues to be reflected within the accompanying Consolidated Balance Sheets and the cash received from the buyer totaling approximately $46.4 million has been recorded in “Other liabilities” within the accompanying Consolidated Balance Sheets. At such time as the continuing involvement provisions expire or otherwise are terminated, the Company will record the transaction as a sale for financial reporting purposes and the gain on sale will be recognized in accordance with the provisions of SFAS No. 66 “Accounting for Sales of Real Estate.”

On February 28, 2005, the Company sold Decoverly Four and Five, consisting of two undeveloped land parcels located in Rockville, Maryland for net cash proceeds of approximately $5.3 million, resulting in a gain on sale of approximately $1.4 million.

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

On April 20, 2005, the Company completed the sale of the Old Federal Reserve, a Class A office property totaling approximately 150,000 net rentable square feet located in San Francisco, California, at a sale price of approximately $46.8 million. Net cash proceeds totaled approximately $45.9 million, resulting in a gain on sale of approximately $10.7 million. This property has been categorized as discontinued operations in the accompanying Consolidated Statements of Operations (See Note 10).

On May 12, 2005, the Company completed the sale of 100 East Pratt Street, a 639,000 net rentable square foot Class A office property located in Baltimore, Maryland, for approximately $207.5 million. Net cash proceeds totaled approximately $92.8 million after the repayment of mortgage indebtedness of $84.0 million, a prepayment penalty of approximately $6.5 million and unfunded tenant obligations and other closing costs totaling $24.2 million, resulting in a gain on sale of approximately $56.1 million. Due to the Company’s continuing involvement through an agreement with the buyer to manage the property for a fee after the sale, this property has not been categorized as discontinued operations in the accompanying Consolidated Statements of Operations (See Note 10).

On May 16, 2005, the Company completed the sale of Riverfront Plaza, a 910,000 net rentable square foot Class A office property located in Richmond, Virginia, for approximately $247.1 million. Net proceeds totaled approximately $129.9 million after the repayment of mortgage indebtedness of $104.0 million, a prepayment penalty of approximately $4.3 million and unfunded tenant obligations and other closing costs totaling $8.9 million, resulting in a gain on sale of approximately $70.8 million. Due to the Company’s continuing involvement through an agreement with the buyer to manage the property for a fee after the sale, this property has not been categorized as discontinued operations in the accompanying Consolidated Statements of Operations (See Note 10).

4. Investments in Unconsolidated Joint Ventures

The investments in unconsolidated joint ventures consist of the following at June 30, 2005:


Entity	Property	Nominal % Ownership
Square 407 Limited Partnership	Market Square North	50.0	%
The Metropolitan Square Associates LLC	Metropolitan Square	51.0	% (1)
BP/CRF 265 Franklin Street Holdings LLC	265 Franklin Street	35.0	%
BP/CRF 901 New York Avenue LLC	901 New York Avenue	25.0	% (2)
New Jersey & H Street LLC	801 New Jersey Avenue	50.0	% (3)
Wisconsin Place Entities	Wisconsin Place	23.9	% (3)(4)
Boston Properties Office Value-Added Fund, L.P.	Worldgate Plaza	25.0	% (2)
KEG Associates I, LLC	505 9^th Street	50.0	% (3)

(1)	This joint venture is accounted for under the equity method due to substantive participating rights of the outside partner.

(2)	The Company’s economic ownership can increase based on the achievement of certain return thresholds.

(3)	The property is not in operation (i.e., under construction, undeveloped land or lease of undeveloped land).

(4)	Represents the Company’s effective ownership interest. The Company has a 66.67%, 5% and 0% interest in the office, retail and residential joint venture entities, respectively, each of which owns a 33.33% interest in the entity developing and owning the land and infrastructure of the project.

Certain of the Company’s joint venture agreements include provisions whereby, at certain specified times, each partner has the right to initiate a purchase or sale of its interest in the joint ventures at an agreed upon fair value. Under these provisions, the Company is not compelled to purchase the interest of its outside joint venture partners.

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

On March 8, 2005, the Company entered into a joint venture with an unrelated third party to develop a build-to-suit Class A office building totaling 318,000 net rentable square feet at 505 9th Street in Washington, D.C. The joint venture partner contributed the land for a 50% interest. Upon commencement of construction on the project, the Company will be required to issue to the joint venture partner for its 50% interest approximately 345,000 OP Units, subject to adjustment based upon the average price of Boston Properties, Inc.’s common stock approaching the time of issuance. The joint venture subsequently entered into a 15-year lease with a law firm to occupy 230,000 net rentable square feet of the building.

On March 11, 2005, the Wisconsin Place joint venture entity, which owns and is developing the land and infrastructure components of the project (the “Land and Infrastructure Entity”), obtained construction financing totaling $96.5 million collateralized by the Wisconsin Place development project in Chevy Chase, Maryland. Wisconsin Place is a mixed-use development project consisting of office, retail and residential properties. The construction financing bears interest at a variable rate equal to LIBOR plus 1.50% per annum and matures in March 2009 with a one-year extension option. The Company has guaranteed approximately $4.6 million of the loan amount on behalf of the Land and Infrastructure Entity.

The Company placed-in-service 901 New York Avenue, a 539,000 net rentable square foot Class A office property located in Washington, D.C., in which the Company has a 25% interest. At June 30, 2005, the property was 96% leased.

The combined summarized balance sheets of the unconsolidated joint ventures are as follows:


	June 30, 2005		December 31, 2004
	(in thousands)
ASSETS
Real estate and development in process, net	$	700,743	$	639,257
Other assets		78,022		86,756

Total assets	$	778,765	$	726,013

LIABILITIES AND MEMBERS’/PARTNERS’ EQUITY
Mortgage and notes payable (1)	$	551,144	$	531,492
Other liabilities		14,515		10,535
Members’/Partners’ equity		213,106		183,986

Total liabilities and members’/partners’ equity	$	778,765	$	726,013

Company’s share of equity	$	80,062	$	78,177
Basis differentials (2)		2,748		2,778

Carrying value of the Company’s investments in unconsolidated joint ventures	$	82,810	$	80,955

(1)

The Company and its partner in the 901 New York Avenue venture had agreed to guarantee up to $3.0 million and $9.0 million, respectively, of mortgage financing on behalf of the joint venture entity. The joint venture partner had pledged cash for its $9.0 million guarantee. The guarantees were released by the lender in April 2005.

The Company, with the other third-party joint venture partners in the Wisconsin Place ventures, have guaranteed the seller financing totaling $23.5 million related to the acquisition of the land by the Land and Infrastructure Entity. The fair value of the Company’s stand-ready obligation related to the issuance of this guarantee is immaterial. In addition, the Company has agreed to guarantee up to approximately $4.6 million of the construction loan on behalf of the Land and Infrastructure Entity.

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

(2)

This amount represents the aggregate difference between the Company’s historical cost basis reflected and the basis reflected at the joint venture level, which is typically amortized over the life of the related asset. Basis differentials occur primarily upon the transfer of assets that were previously owned by the Company into a joint venture. In addition, certain acquisition, transaction and other costs may not be reflected in the net assets at the joint venture level.

The combined summarized statements of operations of the joint ventures are as follows:


	For the three months ended June 30,				For the six months ended June 30,
	2005		2004		2005		2004
	(in thousands)				(in thousands)
Total revenue	$	23,875	$	15,892	$	47,323	$	34,349
Expenses
Operating		7,782		4,796		15,278		10,213
Interest		8,024		4,977		15,937		10,909
Depreciation and amortization		6,101		3,618		10,913		7,281

Total expenses		21,907		13,391		42,128		28,403

Net income	$	1,968	$	2,501	$	5,195	$	5,946

Company’s share of net income	$	847	$	879	$	2,182	$	2,256

5. Mortgage Notes Payable

On February 17, 2005, the Company obtained construction financing totaling $47.2 million collateralized by the Capital Gallery property in Washington, D.C. Capital Gallery is a Class A office property currently totaling approximately 397,000 net rentable square feet. The purpose of the financing is to fund a portion of the cost of an expansion project at the property. The expansion project entails removing a three-story low-rise section of the property comprised of 100,000 net rentable square feet from in-service status and redeveloping it into a ten-story office building. Upon completion, the total complex size will approximate 610,000 net rentable square feet. The construction financing bears interest at a variable rate equal to LIBOR plus 1.65% per annum and matures in February 2008. At June 30, 2005, the outstanding balance on the construction loan facility was $2.4 million. The construction financing is provided by the same lender as the existing mortgage loan collateralized by the property, which, at June 30, 2005, had an outstanding principal balance of approximately $51.4 million, and bears interest at a fixed rate equal to 8.24% per annum with a maturity in August 2006. The agreement with the lender provides an extension provision for the existing mortgage loan to coincide with the February 2008 maturity date of the construction financing.

On April 12, 2005, the Company obtained construction financing totaling $125.0 million collateralized by its Seven Cambridge Center development project located in Cambridge, Massachusetts. Seven Cambridge Center is a fully-leased, build-to-suit project with approximately 231,000 net rentable square feet of office, research laboratory and retail space plus parking for approximately 800 cars. The construction financing bears interest at a variable rate equal to LIBOR plus 1.25% per annum and matures in April 2007 with a one-year extension option. At June 30, 2005, the outstanding balance on the construction loan facility was $44.7 million.

In connection with the sale of the Old Federal Reserve on April 20, 2005, the Company modified the mortgage loans collateralized by Embarcadero Center One, Two and the Old Federal Reserve properties totaling approximately $293.8 million. The modification consisted solely of the release of the Old Federal Reserve property from the collateral in exchange for the payment of a release fee totaling approximately $0.6 million. As

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

the modification was not considered substantial, the Company has amortized the release fee and remaining unamortized deferred financing costs over the remaining term of the modified mortgage loans using the effective interest method.

On May 12, 2005, the Company modified its $83.8 million mortgage loan collateralized by 601 and 651 Gateway Boulevard located in South San Francisco, California. The loan required monthly payments equal to the net cash flow from the property which was allocated first to interest based on a rate of 3.50% per annum with the remainder applied to principal. The loan was scheduled to mature in September 2006 with an option held by the lender, subject to certain conditions, to extend the term to October 2010. If extended, the loan was to require payments of principal and interest at a fixed interest rate of 8.00% per annum based on a 27-year amortization period. The loan provided for the payment of contingent interest up to a maximum of $10.8 million, under certain circumstances, during the extension period. The modified mortgage loan of $83.8 million matures on December 31, 2005 and continues to require monthly payments equal to the net cash flow from the property, which will be allocated first to interest based on a rate of 3.50% per annum with the remainder applied to principal, through the end of the term, with a balloon payment due at maturity. In addition, the Company has guaranteed the repayment of the mortgage loan. The Company has not recognized any gain or loss as a result of the modification, and has accounted for the modified terms prospectively.

In connection with the sale of 100 East Pratt Street on May 12, 2005, the Company repaid the mortgage loans collateralized by the property totaling approximately $84.0 million. During the three months ended June 30, 2005, the Company recognized a loss from early extinguishment of debt totaling approximately $6.7 million, consisting of prepayment fees of approximately $6.5 million and the write-off of unamortized deferred financing costs of approximately $0.2 million. The mortgage loans bore interest at a fixed rate of 6.725% per annum and were scheduled to mature in November 2008.

In connection with the sale of Riverfront Plaza on May 16, 2005, the Company repaid the mortgage loan collateralized by the property totaling approximately $104.0 million. During the three months ended June 30, 2005, the Company recognized a loss from early extinguishment of debt totaling approximately $4.3 million, consisting of a prepayment fee. The mortgage loan bore interest at a fixed rate of 6.61% per annum and was scheduled to mature in February 2008.

On June 21, 2005, the Company refinanced its construction loan facility collateralized by Times Square Tower located in New York City. The construction loan facility totaled $475.0 million and was comprised of two tranches. The first tranche consisted of a $300.0 million loan commitment bearing interest at LIBOR plus 0.90% per annum and maturing in January 2006. The first tranche included a provision for a one-year extension at the option of the Company. The second tranche consisted of a $175.0 million term loan bearing interest at LIBOR plus 1.00% per annum and maturing in January 2007. On June 21, 2005, the outstanding balance under the construction loan facility was $448.4 million. During the three months ended June 30, 2005, the Company recognized a loss from early extinguishment of debt totaling approximately $1.8 million, consisting of the write-off of unamortized deferred financing costs. The new mortgage loan totaling $475.0 million bears interest at a variable rate equal to LIBOR plus 0.50% per annum and matures on July 9, 2008. The new mortgage loan includes provisions for two one-year extensions at the option of the Company. In addition, the Company entered into an agreement to cap the interest rate at 10.5% per annum.

6. Unsecured Line of Credit

On May 19, 2005, the Company modified its $605.0 million unsecured revolving credit facility (the “Unsecured Line of Credit”) by extending the maturity date from January 17, 2006 to October 30, 2007, with a provision for a one-year extension at the option of the Company, subject to certain conditions and by reducing

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

the per annum variable interest rate on outstanding balances from Eurodollar plus 0.70% to Eurodollar plus 0.65%. Under the Unsecured Line of Credit, a facility fee equal to 15 basis points per annum is payable in quarterly installments. The interest rate and facility fee are subject to adjustment in the event of a change in the Company’s unsecured debt ratings. The Unsecured Line of Credit contains a competitive bid option that allows banks that are part of the lender consortium to bid to make loan advances to the Company at a reduced Eurodollar rate. The Unsecured Line of Credit involves a syndicate of lenders. Accordingly, for those lenders that participated in both the original facility and the modified facility, the initial direct debt issuance costs and the costs incurred with the modification are being amortized over the new term of the facility. For the lender that did not participate in the modification, the Company has reflected the write-off of the unamortized initial direct debt issuance costs as an extinguishment of debt, which did not have a significant impact on the Company’s Consolidated Financial Statements. At June 30, 2005, there was no amount outstanding under the Unsecured Line of Credit.

The terms of the Unsecured Line of Credit require that the Company maintain a number of customary financial and other covenants on an ongoing basis, including: (1) a leverage ratio not to exceed 60%, however for a single period of not more than five consecutive quarters the leverage ratio can exceed 60% (but may not exceed 65%), (2) a secured debt leverage ratio not to exceed 55%, (3) a fixed charge coverage ratio of at least 1.40, (4) an unsecured leverage ratio not to exceed 60%, (5) a minimum net worth requirement, (6) an unsecured interest coverage ratio of at least 1.75 and (7) limitations on permitted investments, development, partially owned entities, business outside of commercial real estate and commercial non-office properties.

7. Commitments and Contingencies

General

In the normal course of business, the Company guarantees its performance of services or indemnifies third parties against its negligence.

The Company has letter of credit and performance obligations of approximately $19.4 million related to lender and development requirements.

The Company and its other third-party joint venture partners have guaranteed the seller financing totaling $23.5 million related to the acquisition of the land by the WP Project Developer LLC, the Land and Infrastructure Entity of the Wisconsin Place joint venture entities. In addition, the Company has agreed to guarantee up to approximately $4.6 million of the construction loan on behalf of WP Project Developer LLC.

The Company had agreed to guarantee up to $3.0 million of mortgage financing on behalf of its 901 New York Avenue joint venture entity. The guarantee was released by the lender in April 2005.

The Company has guaranteed the repayment of the $83.8 million mortgage loan on the 601 and 651 Gateway Boulevard properties.

The Company’s agreement for its Citigroup Center joint venture includes a provision whereby, after a certain specified time, the joint venture partner has the right to initiate a purchase or sale of its interest in the joint venture. Under this provision, the Company is compelled to purchase, at fair value, the joint venture partner’s interest. Certain of the Company’s other joint venture agreements include provisions whereby, at certain specified times, each partner has the right to initiate a purchase or sale of its interest in the joint ventures. Under these other provisions, the Company is not compelled to purchase the interest of its outside joint venture partners.

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Insurance

The Company carries insurance coverage on its properties of types and in amounts and with deductibles that it believes are in line with coverage customarily obtained by owners of similar properties. In response to the uncertainty in the insurance market following the terrorist attacks of September 11, 2001, the Federal Terrorism Risk Insurance Act, or TRIA, was enacted in November 2002 to require regulated insurers to make available coverage for certified acts of terrorism (as defined by the statute) through December 31, 2004, which date was extended to December 31, 2005 by the United States Department of Treasury on June 18, 2004. TRIA expires on December 31, 2005, and the Company cannot currently anticipate whether it will be extended. Effective as of April 15, 2005, the Company’s property insurance program per occurrence limits were increased from $890 million to $1 billion, including coverage for both “certified” and “non-certified” acts of terrorism as defined by TRIA. The Company also carries nuclear, biological and chemical terrorism insurance coverage (“NBC Coverage”) for “certified” acts of terrorism as defined by TRIA, which is provided by IXP, Inc. as a direct insurer. Effective as of April 1, 2005, the Company extended the NBC Coverage to March 1, 2006 and the per occurrence limit for the NBC Coverage was increased from $640 million to $890 million. Effective as of May 2, 2005, this limit for NBC Coverage was increased to $1 billion. Under TRIA, the NBC Coverage is backstopped by the Federal Government after the payment of the required deductible and 10% coinsurance. In the event TRIA is not extended beyond December 31, 2005, (1) the NBC Coverage provided by IXP will terminate, and (2) a portion of the Company’s coverage for what would have constituted “certified” and “non-certified” acts of terrorism (other than NBC Coverage) had TRIA not expired will terminate and the Company will have the right to replace a portion of such terminated coverage. In the event TRIA is extended on terms which could expose IXP to a material increase in risk, the Company may elect to terminate the NBC coverage provided by IXP. The Company intends to continue to monitor the scope, nature and cost of available terrorism insurance and maintain insurance in amounts and on terms that are commercially reasonable.

The Company also currently carries earthquake insurance on its properties located in areas known to be subject to earthquakes in an amount and subject to deductibles and self-insurance that it believes is commercially reasonable. Specifically, the Company currently carries earthquake insurance which covers its San Francisco portfolio with a $120 million per occurrence limit and a $120 million aggregate limit, $20 million of which is provided by IXP, Inc., as a direct insurer. The amount of the Company’s earthquake insurance coverage may not be sufficient to cover losses from earthquakes. As a result of increased costs of coverage and limited availability, the amount of third-party earthquake insurance that the Company may be able to purchase on commercially reasonable terms may be reduced. In addition, the Company may discontinue earthquake insurance on some or all of its properties in the future if the premiums exceed the Company’s estimation of the value of the coverage.

In January 2002, the Company formed a wholly-owned taxable REIT subsidiary, IXP, Inc., or IXP, to act as a captive insurance company and be one of the elements of its overall insurance program. IXP acts as a direct insurer with respect to a portion of the Company’s earthquake insurance coverage for its Greater San Francisco properties and its NBC Coverage for “certified acts of terrorism” under TRIA. Insofar as the Company owns IXP, it is responsible for its liquidity and capital resources, and the accounts of IXP are part of the Company’s consolidated financial statements. If the Company experiences a loss and IXP is required to pay under its insurance policy, the Company would ultimately record the loss to the extent of IXP’s required payment. Therefore, insurance coverage provided by IXP should not be considered as the equivalent of third-party insurance, but rather as a modified form of self-insurance.

The Company continues to monitor the state of the insurance market in general, and the scope and costs of coverage for acts of terrorism in particular, but it cannot anticipate what coverage will be available on commercially reasonable terms in future policy years. There are other types of losses, such as from wars or the presence of mold at the Company’s properties, for which it cannot obtain insurance at all or at a reasonable cost. With respect to such losses and losses from acts of terrorism, earthquakes or other catastrophic events, if the

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Company experiences a loss that is uninsured or that exceeds policy limits, it could lose the capital invested in the damaged properties, as well as the anticipated future revenues from those properties. Depending on the specific circumstances of each affected property, it is possible that the Company could be liable for mortgage indebtedness or other obligations related to the property. Any such loss could materially and adversely affect the Company’s business and financial condition and results of operations.

8. Redeemable Partnership Units

As of June 30, 2005, the redeemable partnership units consisted of 21,247,927 OP Units, 380,821 LTIP Units and 4,082,335 Series Two Preferred Units (or 5,357,399 OP Units on an as converted basis) held by parties other than Boston Properties, Inc.

The Preferred Units at June 30, 2005 consist solely of 4,082,335 Series Two Preferred Units of limited partnership in the Company (the “Series Two Preferred Units”), which bear a preferred distribution equal to the greater of (1) the distribution which would have been paid in respect of the Series Two Preferred Unit had such Series Two Preferred Unit been converted into an OP Unit (including both regular and special distributions) or (2) an increasing rate, ranging from 5.00% to 7.00% per annum (7.00% for the three months ended June 30, 2005 and 2004) on a liquidation preference of $50.00 per unit, and are convertible into OP Units at a rate of $38.10 per Preferred Unit. Distributions to holders of Preferred Units are recognized on a straight-line basis that approximates the effective interest method.

On April 29, 2005, the Company paid a distribution on the OP Units and LTIP Units in the amount of $0.65 per unit to holders of record on March 31, 2005.

On May 16, 2005, the Company paid a distribution on its outstanding Series Two Preferred Units of $0.85342 per unit.

On May 11, 2005, Boston Properties, Inc., as general partner of the Company, declared a distribution on the OP Units and LTIP Units in the amount of $0.68 per unit payable on July 29, 2005 to holders of record on June 30, 2005.

Due to the redemption option and the conversion option existing outside the control of the Company, such OP Units and Preferred Units are not included in Partners’ Capital and are reflected in the Consolidated Balance Sheets at an amount equivalent to the value of such units had such units been redeemed at June 30, 2005 and December 31, 2004, respectively. Included in preferred distributions in the Consolidated Statements of Operations is accretion of approximately $0.4 million, $0.5 million, $0.9 million and $1.1 million for the three and six months ended June 30, 2005 and 2004, respectively, which represents the accretion of Preferred Units from the value of the units at issuance to the liquidation value.

9. Partners’ Capital

As of June 30, 2005, Boston Properties, Inc. owned 1,330,321 general partner units and 110,073,052 limited partner units.

On April 29, 2005, Boston Properties, Inc. as general partner of the Company, paid a distribution in the amount of $0.65 per OP Unit to unitholders of record as of the close of business on March 31, 2005.

On May 11, 2005, Boston Properties, Inc. as general partner of the Company, declared a distribution in the amount of $0.68 per OP Unit payable on July 29, 2005 to unitholders of record as of the close of business on June 30, 2005.

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

10. Discontinued Operations

Effective January 1, 2002, the Company adopted the provisions of SFAS No. 144, “Accounting for the Impairment or Disposal of Long-Lived Assets.” SFAS No. 144 requires that long-lived assets that are to be disposed of by sale be measured at the lesser of (1) book value or (2) fair value less cost to sell. In addition, it requires that one accounting model be used for long-lived assets to be disposed of by sale and broadens the presentation of discontinued operations to include more disposal transactions.

During the six months ended June 30, 2005, the Company sold the following operating properties:

•

Old Federal Reserve, a Class A office property totaling approximately 150,000 net rentable square feet located in San Francisco, California;

•

100 East Pratt Street, a Class A office property totaling approximately 639,000 net rentable square feet located in Baltimore, Maryland; and

•

Riverfront Plaza, a Class A office property totaling approximately 910,000 net rentable square feet located in Richmond, Virginia.

During the year ended December 31, 2004, the Company sold the following operating properties:

•

430 Rozzi Place, an industrial property totaling 20,000 net rentable square feet located in South San Francisco, California;

•

Hilltop Office Center, a complex of nine office/technical properties totaling approximately 143,000 net rentable square feet located in South San Francisco, California;

•

Sugarland Business Park—Building Two, an office/technical property totaling approximately 59,000 net rentable square feet located in Herndon, Virginia;

•

Decoverly Two, Three, Six and Seven, consisting of Two Class A office properties totaling approximately 155,000 net rentable square feet and two land parcels, one of which is subject to a ground lease, located in Rockville, Maryland;

•

The Arboretum, a Class A office property totaling approximately 96,000 net rentable square feet located in Reston, Virginia;

•

38 Cabot Boulevard, an industrial property totaling approximately 161,000 net rentable square feet located in Langhorne, Pennsylvania;

•

Sugarland Business Park—Building One, an office/technical property totaling approximately 52,000 net rentable square feet located in Herndon, Virginia;

•

204 Second Avenue, a Class A office property totaling approximately 41,000 net rentable square feet located in Waltham, Massachusetts; and

•

560 Forbes Boulevard, an industrial property totaling approximately 40,000 net rentable square feet located in South San Francisco, California.

Due to the Company’s continuing involvement in the management, for a fee, of the 100 East Pratt Street, Riverfront Plaza and Hilltop Office Center properties through agreements with the buyers, these properties are not categorized as discontinued operations in the accompanying Consolidated Statements of Operations. As a result, the gains on sales related to 100 East Pratt Street, Riverfront Plaza and Hilltop Office Center have been reflected under the caption “Gains on sales of real estate, net of minority interest,” in the Consolidated Statements of Operations for the three and six months ended June 30, 2005 and 2004, respectively. The Company has presented the other properties listed above as discontinued operations in its Consolidated Statements of Operations for the three and six months ended June 30, 2005 and 2004.

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table summarizes income from discontinued operations (net of minority interest in property partnership) and the related realized gains on sales of real estate from discontinued operations (net of minority interest in property partnership) for the three and six months ended June 30, 2005 and 2004 (in thousands):


	For the three months ended June 30,						For the six months ended June 30,
	2005			2004			2005			2004
Total revenue	$	70		$	2,261		$	73		$	6,318
Operating expenses		(70	)		(864	)		(380	)		(2,088	)
Interest expense		—			—			—			—
Depreciation and amortization		—			(487	)		(179	)		(1,273	)
Minority interest in property partnership		—			(54	)		—			(111	)

Income (loss) from discontinued operations (net of minority interest)	$	—		$	856		$	(486	)	$	2,846

Realized gains on sales of real estate	$	10,671		$	23,923		$	10,671		$	28,508
Minority interest in property partnership		—			—			—			(1,512	)

Realized gains on sales of real estate (net of minority interest)	$	10,671		$	23,923		$	10,671		$	26,996

The Company’s application of SFAS No. 144 results in the presentation of the net operating results of these qualifying properties sold or held for sale during 2005 and 2004 as income from discontinued operations for the three and six months ended June 30, 2005 and 2004. In addition, SFAS No. 144 results in the gains on sale of these qualifying properties to be reflected as gains on sales of real estate from discontinued operations in the accompanying Consolidated Statements of Operations. The application of SFAS No. 144 does not have an impact on net income available to common unitholders. SFAS No. 144 only impacts the presentation of these properties within the Consolidated Statements of Operations.

11. Earnings Per Common Unit

Earnings per common unit have been computed pursuant to the provisions of SFAS No. 128. The following table provides a reconciliation of both the net income and the number of common units used in the computation of basic earnings per common unit, which is calculated by dividing net income available to common unitholders by the weighted-average number of common units outstanding during the period. During 2004, the Company adopted EITF 03-6 “Participating Securities and the Two-Class Method under FASB 128” (“EITF 03-6”), which provides further guidance on the definition of participating securities. Pursuant to EITF 03-6, the Company’s Series Two Preferred Units, which are reflected as Redeemable Partnership Units in the Company’s Consolidated Balance Sheets, are considered participating securities and are included in the computation of basic and diluted earnings per common unit of the Company if the effect of applying the if-converted method is dilutive. The Series Two Preferred Units issued by the Company enable the holders to obtain OP Units of the Company, as well as Common Stock of Boston Properties, Inc. Accordingly, for the reporting periods in which the Company’s net income is in excess of distributions paid on the OP Units, LTIP Units and Series Two Preferred Units, such income is allocated to the OP Units, LTIP Units and Series Two Preferred Units in proportion to their respective interests and the impact is included in the Company’s consolidated basic and diluted earnings per common unit computation. Prior periods of the Company have been restated to conform to the provisions of EITF 03-6. For the three months ended June 30, 2005 and 2004, approximately $4.5 million and $0.9 million, respectively, were allocated to the Series Two Preferred Units in excess of distributions paid during the reporting period and are included in the Company’s computation of basic and diluted earnings per common unit. For the six months ended June 30, 2005 and 2004, approximately $4.0 million and $1.1 million, respectively, were allocated to the Series Two Preferred Units in excess of distributions paid during the reporting period and are included in the

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Company’s computation of basic and diluted earnings per common unit. Other potentially dilutive common units, and the related impact on earnings, are considered when calculating diluted earnings per common unit.


	For the three months ended June 30, 2005
	Income (Numerator)		Units (Denominator)	Per Unit Amount
	(in thousands, except for per unit amounts)
Basic Earnings:
Income available to common unitholders before discontinued operations	$	189,263	132,522	$	1.43
Discontinued operations		10,671	—		0.08

Net income available to common unitholders		199,934	132,522		1.51
Effect of Dilutive Securities:
Stock Based Compensation		—	2,339		(0.03	)
Diluted Earnings:

Net income	$	199,934	134,861	$	1.48


	For the three months ended June 30, 2004
	Income (Numerator)		Units (Denominator)	Per Unit Amount
	(in thousands, except for per unit amounts)
Basic Earnings:
Income available to common unitholders before discontinued operations	$	80,090	129,116	$	0.62
Discontinued operations		24,779	—		0.19

Net income available to common unitholders		104,869	129,116		0.81
Effect of Dilutive Securities:
Stock Based Compensation		—	1,800		(0.01	)
Diluted Earnings:

Net income	$	104,869	130,916	$	0.80


	For the six months ended June 30, 2005
	Income (Numerator)		Units (Denominator)	Per Unit Amount
	(in thousands, except for per unit amounts)
Basic Earnings:
Income available to common unitholders before discontinued operations	$	264,144	132,176	$	2.00
Discontinued operations		10,185	—		0.08

Net income available to common unitholders		274,329	132,176		2.08
Effect of Dilutive Securities:
Stock Based Compensation		—	2,263		(0.04	)
Diluted Earnings:

Net income	$	274,329	134,439	$	2.04

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)


	For the six months ended June 30, 2004
	Income (Numerator)		Units (Denominator)	Per Unit Amount
	(in thousands, except for per unit amounts)
Basic Earnings:
Income available to common unitholders before discontinued operations	$	155,722	126,050	$	1.23
Discontinued operations		29,842	—		0.24

Net income available to common unitholders		185,564	126,050		1.47
Effect of Dilutive Securities:
Stock Based Compensation		—	2,202		(0.02	)
Diluted Earnings:

Net income	$	185,564	128,252	$	1.45

12. Stock Option and Incentive Plan

During the six months ended June 30, 2005, Boston Properties, Inc., as general partner of the Company, issued 12,317 shares of restricted stock and 211,408 LTIP Units under the stock option and incentive plan. The shares of restricted stock and LTIP Units were valued at an aggregate of approximately $0.7 million and $12.3 million, respectively, based on observable market prices for similar instruments. An LTIP Unit is generally the economic equivalent of a share of restricted stock in Boston Properties, Inc. The aggregate value of the LTIP Units is not included in Unearned Compensation in the Consolidated Balance Sheets as it is reflected in Redeemable Partnership Units. Employees vest in restricted stock and LTIP Units over a five-year term. Restricted stock and LTIP Units are measured at fair value on the date of grant based on the number of shares or units granted, as adjusted for estimated forfeitures, and recognized as expense over the requisite service period. Dividends or distributions paid on both vested and unvested shares and units of restricted stock and LTIP Units are charged directly to Partners’ Capital and Redeemable Partnership Units, respectively, in the Consolidated Balance Sheets. In addition, in accordance with the modified prospective application transition provisions of SFAS No. 123R, the Company has recognized compensation expense of approximately $50,000 relating to its unvested stock options for the six months ended June 30, 2005. All outstanding stock options are currently exercisable. Stock-based compensation expense, which is reflected in General and Administrative Expense in the Consolidated Statements of Operations, associated with all equity compensation plans was approximately $1.6 million and $0.9 million for the three months ended June 30, 2005 and 2004, respectively, and $3.7 million and $2.2 million during the six months ended June 30, 2005 and 2004, respectively.

13. Segment Information

The Company’s segments are based on the Company’s method of internal reporting which classifies its operations by both geographic area and property type. The Company’s segments by geographic area are Greater Boston, Greater Washington, D.C., Midtown Manhattan, Greater San Francisco and New Jersey. Segments by property type include: Class A Office, Office/Technical, Industrial and Hotels.

Asset information by segment is not reported because the Company does not use this measure to assess performance. Therefore, depreciation and amortization expense is not allocated among segments. Interest and other income, development and management services, general and administrative expenses, interest expense, depreciation and amortization expense and losses from early extinguishments of debt are not included in Net Operating Income as the internal reporting addresses these items on a corporate level.

Net Operating Income is not a measure of operating results or cash flows from operating activities as measured by accounting principles generally accepted in the United States of America, and it is not indicative of

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

cash available to fund cash needs and should not be considered an alternative to cash flows as a measure of liquidity. All companies may not calculate Net Operating Income in the same manner. The Company considers Net Operating Income to be an appropriate supplemental measure to net income because it helps both investors and management to understand the core operations of the Company’s properties.

Information by geographic area and property type:

Three months ended June 30, 2005 (dollars in thousands):


	Greater Boston			Greater Washington, D.C.			Midtown Manhattan			Greater San Francisco			New Jersey			Total
Rental Revenue:
Class A	$	72,697		$	56,395		$	131,553		$	50,393		$	16,381		$	327,419
Office/Technical		2,194			3,722			—			—			—			5,916
Industrial		129			—			—			—			—			129
Hotels		20,066			—			—			—			—			20,066

Total		95,086			60,117			131,553			50,393			16,381			353,530

% of Total		26.90	%		17.01	%		37.21	%		14.25	%		4.63	%		100.00	%
Operating Expenses:
Class A		26,295			14,507			39,258			18,335			6,870			105,265
Office/Technical		452			738			—			—			—			1,190
Industrial		121			—			—			—			—			121
Hotels		13,979			—			—			—			—			13,979

Total		40,847			15,245			39,258			18,335			6,870			120,555

% of Total		33.89	%		12.65	%		32.56	%		15.20	%		5.70	%		100.00	%

Net Operating Income	$	54,239		$	44,872		$	92,295		$	32,058		$	9,511		$	232,975

% of Total		23.28	%		19.26	%		39.62	%		13.76	%		4.08	%		100.00	%

Three months ended June 30, 2004 (dollars in thousands):


	Greater Boston			Greater Washington, D.C.			Midtown Manhattan			Greater San Francisco			New Jersey			Total
Rental Revenue:
Class A	$	72,157		$	59,348		$	115,162		$	46,910		$	17,692		$	311,269
Office/Technical		2,117			3,515			—			—			—			5,632
Industrial		2			—			—			—			—			2
Hotels		19,166			—			—			—			—			19,166

Total		93,442			62,863			115,162			46,910			17,692			336,069

% of Total		27.80	%		18.71	%		34.27	%		13.96	%		5.26	%		100.00	%
Operating Expenses:
Class A		24,584			16,546			33,497			17,725			7,302			99,654
Office/Technical		550			735			—			5			—			1,290
Industrial		105			—			—			—			—			105
Hotels		13,376			—			—			—			—			13,376

Total		38,615			17,281			33,497			17,730			7,302			114,425

% of Total		33.76	%		15.10	%		29.27	%		15.49	%		6.38	%		100.00	%

Net Operating Income	$	54,827		$	45,582		$	81,665		$	29,180		$	10,390		$	221,644

% of Total		24.73	%		20.56	%		36.85	%		13.17	%		4.69	%		100.00	%

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Six months ended June 30, 2005 (dollars in thousands):


	Greater Boston			Greater Washington, D.C.			Midtown Manhattan			Greater San Francisco			New Jersey			Total
Rental Revenue:
Class A	$	147,128		$	119,744		$	258,172		$	99,602		$	32,935		$	657,581
Office/Technical		4,358			7,408			—			—			—			11,766
Industrial		131			—			—			—			—			131
Hotels		34,068			—			—			—			—			34,068

Total		185,685			127,152			258,172			99,602			32,935			703,546

% of Total		26.39	%		18.07	%		36.70	%		14.16	%		4.68	%		100.00	%
Operating Expenses:
Class A		52,924			31,807			78,253			35,713			13,715			212,412
Office/Technical		988			1,539			—			—			—			2,527
Industrial		238			—			—			—			—			238
Hotels		26,265			—			—			—			—			26,265

Total		80,415			33,346			78,253			35,713			13,715			241,442

% of Total		33.31	%		13.81	%		32.41	%		14.79	%		5.68	%		100.00	%

Net Operating Income	$	105,270		$	93,806		$	179,919		$	63,889		$	19,220		$	462,104

% of Total		22.78	%		20.30	%		38.93	%		13.83	%		4.16	%		100.00	%

Six months ended June 30, 2004 (dollars in thousands):


	Greater Boston			Greater Washington, D.C.			Midtown Manhattan			Greater San Francisco			New Jersey			Total
Rental Revenue:
Class A	$	140,878		$	116,060		$	225,859		$	94,175		$	36,149		$	613,121
Office/Technical		4,339			6,810			—			134			—			11,283
Industrial		—			—			—			—			—			—
Hotels		32,344			—			—			—			—			32,344

Total		177,561			122,870			225,859			94,309			36,149			656,748

% of Total		27.04	%		18.71	%		34.39	%		14.36	%		5.50	%		100.00	%
Operating Expenses:
Class A		48,189			32,516			68,116		$	34,954			14,501			198,276
Office/Technical		1,105			1,544			—			36			—			2,685
Industrial		210			—			—			—			—			210
Hotels		25,054			—			—			—			—			25,054

Total		74,558			34,060			68,116			34,990			14,501			226,225

% of Total		32.96	%		15.06	%		30.11	%		15.47	%		6.40	%		100.00	%

Net Operating Income	$	103,003		$	88,810		$	157,743		$	59,319		$	21,648		$	430,523

% of Total		23.92	%		20.63	%		36.64	%		13.78	%		5.03	%		100.00	%

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following is a reconciliation of net operating income to net income available to common unitholders:


	Three months ended June 30,						Six months ended June 30,
	2005			2004			2005			2004
	(in thousands)						(in thousands)
Net operating income	$	232,975		$	221,644		$	462,104		$	430,523
Add:
Development and management services income		4,137			5,961			8,673			9,283
Interest and other income		2,937			1,090			4,574			8,618
Minority interests in property partnerships		1,472			1,292			3,124			1,677
Income from unconsolidated joint ventures		847			879			2,182			2,256
Gains on sales of real estate		126,978			1,658			126,978			9,822
Gains on sales of land held for development		—			—			1,445			—
Income (loss) from discontinued operations		—			856			(486	)		2,846
Gains on sales of real estate from discontinued operations		10,671			23,923			10,671			26,996
Less:
General and administrative expense		(14,252	)		(12,493	)		(29,065	)		(25,093	)
Interest expense		(78,233	)		(74,789	)		(157,587	)		(149,094	)
Depreciation and amortization expense		(66,489	)		(59,941	)		(133,922	)		(115,648	)
Losses from early extinguishments of debt		(12,896	)		—			(12,896	)		(6,258	)
Preferred distributions and allocation of undistributed earnings		(8,213	)		(5,211	)		(11,466	)		(10,364	)

Net income available to common unitholders	$	199,934		$	104,869		$	274,329		$	185,564

14. Newly Issued Accounting Standard

In December 2004, the FASB issued SFAS No. 123R, “Share-Based Payment” (“SFAS No. 123R”). SFAS No. 123R replaces SFAS No. 123, “Accounting for Stock Issued to Employees.” SFAS No. 123R requires the compensation cost relating to share-based payment transactions be recognized in financial statements and be measured based on the fair value of the equity instrument issued. SFAS No. 123R is effective as of the first annual reporting period beginning after June 15, 2005. The Company adopted the fair value recognition provisions of SFAS No. 123R prospectively to all employee awards granted, modified, or settled on or after January 1, 2005, and applied the modified prospective application transition provisions, upon adoption. All of Boston Properties, Inc.’s remaining unvested stock options vested on January 17, 2005. As a result, the Company’s adoption of SFAS No. 123R did not have a material impact on the Company’s cash flows, results of operations, financial position, or liquidity.

In May 2005, the FASB issued SFAS No. 154, “Accounting Changes and Error Corrections—A Replacement of APB Opinion No. 20 and SFAS Statement No. 3” (“SFAS No. 154”). SFAS No. 154 changes the requirements for the accounting and reporting of a change in accounting principle by requiring retrospective application to prior periods’ financial statements of the change in accounting principle, unless it is impracticable to do so. SFAS No. 154 also requires that a change in depreciation or amortization for long-lived, non-financial assets be accounted for as a change in accounting estimate effected by a change in accounting principle. SFAS No. 154 is effective for accounting changes and corrections of errors made in fiscal years beginning after December 15, 2005. The Company does not expect the adoption of SFAS No. 154 to have a material impact on the Company’s cash flows, results of operations, financial position, or liquidity.

BOSTON PROPERTIES LIMITED PARTNERSHIP

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

In June 2005, the FASB ratified the consensus reached by the Emerging Issues Task Force (“EITF”) regarding EITF 04-5, “Investor’s Accounting for an Investment in a Limited Partnership When the Investor is the Sole General Partner and the Limited Partners Have Certain Rights” (“EITF 04-5”). The conclusion provides a framework for addressing the question of when a sole general partner, as defined in EITF 04-5, should consolidate a limited partnership. Pursuant to EITF 04-5, the general partner of a limited partnership should consolidate a limited partnership unless the limited partners have either (a) the substantive ability to dissolve the limited partnership or otherwise remove the general partners without cause, or (b) substantive participating rights. In addition, EITF 04-5 concluded that the guidance should be expanded to include all limited partnerships, including those with multiple general partners. EITF 04-5 is effective for reporting periods in fiscal years beginning after December 15, 2005. The Company is currently evaluating and assessing the impact of this pronouncement.

15. Related Party Transaction

An entity controlled by Mr. Mortimer B. Zuckerman, Chairman of the Board of Directors of Boston Properties, Inc., general partner of the Company, owned an office building located at 2400 N Street, N.W. in Washington, D.C., in which a company affiliated with Mr. Zuckerman leased 100% of the building. The Company had entered into an agreement with an entity controlled by Mr. Zuckerman to manage this property on terms comparable with other third-party property management agreements that the Company currently has in place. The disinterested members of Boston Properties, Inc.’s Board of Directors had approved the management agreement between the Company and Mr. Zuckerman’s affiliate. Under the management agreement, the Company had also agreed to provide consulting services and assistance in connection with a possible sale of this property in exchange for a fee of $100,000 payable upon the closing of the sale of the property. During the three months ended June 30, 2005, the entity controlled by Mr. Zuckerman closed on the sale of the property and pursuant to the management agreement the Company recognized $100,000 for consulting services and assistance in connection with the sale.

16. Subsequent Events

On July 19, 2005, the Company refinanced at maturity its mortgage loan collateralized by 599 Lexington Avenue located in New York City. The mortgage loan totaling $225.0 million bore interest at a fixed rate of 7.0% per annum. The mortgage loan was refinanced through a $225.0 million secured draw from the Company’s Unsecured Line of Credit.

On July 21, 2005, Boston Properties, Inc., as general partner of the Company declared a special cash distribution of $2.50 per OP Unit payable on October 31, 2005 to unitholders of record as of the close of business on September 30, 2005. The holders of Series Two Preferred Units of limited partnership interest in the Company will participate (in accordance with the terms of the Series Two Preferred Units) in the special distribution on an as-converted basis. Because the holders of options to purchase shares of Boston Properties, Inc.’s Common Stock are not eligible to receive dividends, Boston Properties, Inc. approved adjustments that are intended to ensure that its employees, directors and other persons who hold such stock options are not disadvantaged by the planned special cash distribution.

On August 3, 2005, the Company entered into two forward-starting swap contracts at fixed rates of 4.877% and 4.882% on notional amounts of $50.0 million. The swaps go into effect in February 2007 and expire in February 2017.

BOSTON PROPERTIES LIMITED PARTNERSHIP

ITEM 2—Management’s Discussion and Analysis of Financial Condition and Results of Operations

As used herein, unless the context otherwise requires, the terms “BPLP,” “we,” “us,” and “our” refer collectively to Boston Properties Limited Partnership, a Delaware limited partnership, and its subsidiaries, and its respective predecessor entities, considered as a single enterprise.

The following discussion should be read in conjunction with the financial statements and notes thereto appearing elsewhere in this report. This Report on Form 10-Q contains forward-looking statements within the meaning of the federal securities laws. We caution investors that any forward-looking statements presented in this report, or which management may make orally or in writing from time to time, are based on management’s beliefs and assumptions made by, and information currently available to, management. When used, the words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “project,” “result,” “should,” “will” and similar expressions which do not relate solely to historical matters are intended to identify forward-looking statements. Such statements are subject to risks, uncertainties and assumptions and are not guarantees of future performance, which may be affected by known and unknown risks, trends, uncertainties and factors that are beyond our control. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, estimated or projected by the forward-looking statements. We caution you that while forward-looking statements reflect our good-faith beliefs when we make them, they are not guarantees of future performance and are impacted by actual events when they occur after we make such statements. Accordingly, investors should use caution in relying on forward-looking statements, which are based on results and trends at the time they are made, to anticipate future results or trends.

Some of the risks and uncertainties that may cause our actual results, performance or achievements to differ materially from those expressed or implied by forward-looking statements include, among others, the following:

•

general risks affecting the real estate industry (including, without limitation, the inability to enter into or renew leases, dependence on tenants’ financial condition, and competition from other developers, owners and operators of real estate);

•

risks associated with the availability and terms of financing and the use of debt to fund acquisitions and developments;

•

failure to manage effectively our growth and expansion into new markets or to integrate acquisitions successfully;

•

risks and uncertainties affecting property development and construction (including, without limitation, construction delays, cost overruns, inability to obtain necessary permits and public opposition to such activities);

•

risks associated with downturns in the national and local economies, increases in interest rates, and volatility in the securities markets;

•

risks associated with actual or threatened terrorist attacks;

•

costs of compliance with the Americans with Disabilities Act and other similar laws;

•

potential liability for uninsured losses and environmental contamination;

•

risks associated with Boston Properties, Inc.’s potential failure to qualify as a REIT under the Internal Revenue Code of 1986, as amended, and possible adverse changes in tax and environmental laws;

•

risks associated with possible state and local tax audits;

•

risks associated with our dependence on key personnel whose continued service is not guaranteed; and

•

the other risk factors identified in our most recently filed annual report on Form 10-K, including those described under the caption “Risk Factors.”

The risks set forth above are not exhaustive. Other sections of this report may include additional factors that could adversely affect our business and financial performance. Moreover, we operate in a very competitive and rapidly changing environment. New risk factors emerge from time to time and it is not possible for management

BOSTON PROPERTIES LIMITED PARTNERSHIP

to predict all risk factors, nor can it assess the impact of all risk factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements as a prediction of actual results. Investors should also refer to our annual reports on Form 10-K and our quarterly reports on Form 10-Q for future periods and current reports on Form 8-K as we file them with the SEC, and to other materials we may furnish to the public from time to time through Forms 8-K or otherwise. We expressly disclaim any responsibility to update any forward-looking statements to reflect changes in underlying assumptions or factors, new information, future events, or otherwise, and you should not rely upon these forward-looking statements after the date of this report.

Overview

Boston Properties Limited Partnership is the entity through which Boston Properties, Inc. conducts substantially all of its business and owns (either directly or through subsidiaries) substantially all of its assets. Our properties are concentrated in five markets—Boston, midtown Manhattan, Washington, D.C., Princeton, New Jersey and San Francisco. We generate revenue and cash primarily by leasing our Class A office space to our tenants. Factors we consider when we lease space include creditworthiness of the tenant, the length of the lease, the rental rate to be paid, costs of tenant improvements, operating costs and real estate taxes, vacancy, current and anticipated future demand for office space and general economic factors.

Office markets showed signs of further improvement in the second quarter of 2005, although at a slower pace than what we experienced between the fourth quarter of 2004 and the first quarter of 2005. Across our portfolio, average market rents continue to increase in all markets with the exception of the Boston central business district, Cambridge, Montgomery County, Maryland and Princeton, where rents have remained essentially unchanged. Our second quarter lease executions continued at a strong pace, totaling just over 900,000 square feet in 91 new leases and or amendments.

During the quarter, we completed the sales of Riverfront Plaza and 100 East Pratt Street which resulted in our exit as an owner from the Baltimore and Richmond markets. We will continue to manage these properties through long-term management agreements. In addition, we completed the sale of the Old Federal Reserve located in San Francisco, California. We believe the current conditions of the investment market will continue through the remainder of 2005 and that investors will continue to place a premium on high-quality, well-located office buildings resulting in a reduction in total return expectations and higher sale prices. We continue to review our portfolio with a view towards additional sales. However, these conditions also make it more difficult to acquire assets at what we believe to be attractive rates of return.

We continue to capitalize on our ability to grow through development, which is one of our core capabilities. Given current market conditions, we believe the returns we can generate from development are generally greater than those we could expect to realize from acquisitions. We are considering other than office uses for our land holdings and may participate or undertake alternative development projects. We currently have four active construction projects underway, which aggregate an estimated total investment of $292.4 million, as well as multiple opportunities within our pipeline. Our Seven Cambridge and Parcel E (12290 Sunrise Valley) projects are fully leased to Massachusetts Institute of Technology and Lockheed Martin Corporation, respectively. Our estimated total investment for our properties under construction as of June 30, 2005 is detailed below:


Properties Under Construction	Location	Estimated Total Investment
		(in thousands)
Seven Cambridge Center and West Garage	Cambridge, MA	$	145,934
Parcel E (12290 Sunrise Valley)	Reston, VA		45,754
Capital Gallery Expansion	Washington, D.C.		69,100
Wisconsin Place—Infrastructure (23.89% ownership)	Chevy Chase, MD		31,626

Total Properties Under Construction		$	292,414

BOSTON PROPERTIES LIMITED PARTNERSHIP

In July 2005, Boston Properties, Inc., as general partner of the Company, declared a special cash distribution of $2.50 per OP Unit, payable on October 31, 2005 to unitholders of record as of the close of business on September 30, 2005. The difficulty in purchasing significant high quality assets in accordance with our disciplined return and underwriting standards and the strength of our current balance sheet which, even after this distribution, will allow us to aggressively pursue any attractive purchase or development opportunity that surfaces led to the decision to declare the distribution. The Board of Directors of Boston Properties, Inc. did not make any change in its policy with respect to regular quarterly distributions. The holders of Series Two Preferred Units will participate (in accordance with the terms of the Series Two Preferred Units) in the special distribution on an as-converted basis. Because the holders of options to purchase shares of Boston Properties, Inc.’s Common Stock are not eligible to receive distributions, Boston Properties, Inc. approved adjustments that are intended to ensure that our employees, directors and other persons who hold such stock options are not disadvantaged by the planned distribution.

The highlights of the three months ended June 30, 2005 included the following:

•

Boston Properties, Inc., as general partner of the Company, increased the quarterly distribution payable to OP Unitholders from $0.65 per Unit to $0.68 per Unit. This represents a 4.6% increase.

•

On April 12, 2005, we obtained construction financing totaling $125.0 million collateralized by our Seven Cambridge Center development project located in Cambridge, Massachusetts. Seven Cambridge Center is a fully-leased, build-to-suit project with approximately 231,000 net rentable square feet of office, research laboratory and retail space plus parking for approximately 800 cars. The construction financing bears interest at a variable rate equal to LIBOR plus 1.25% per annum and matures in April 2007 with a one-year extension option.

•

On April 20, 2005, we sold the Old Federal Reserve, a Class A office property totaling approximately 150,000 net rentable square feet located in San Francisco, California, at a sale price of approximately $46.8 million.

•

On May 12, 2005, we modified the mortgage loan collateralized by 601 and 651 Gateway Boulevard located in South San Francisco, California. The modified mortgage loan of $83.8 million matures on December 31, 2005 and continues to require monthly payments equal to the net cash flow from the property, which will be allocated first to interest based on a rate of 3.50% per annum with the remainder applied to principal through the end of the term, with a balloon payment due at maturity.

•

On May 12, 2005, we completed the sale of 100 East Pratt Street, a 639,000 net rentable square foot Class A office property located in Baltimore, Maryland, for approximately $207.5 million. Net cash proceeds were approximately $92.8 million after the repayment of mortgage indebtedness of approximately $84.0 million, a prepayment penalty of approximately $6.5 million and unfunded tenant obligations and other closing costs totaling approximately $24.2 million.

•

On May 16, 2005, we completed the sale of Riverfront Plaza, a 910,000 net rentable square foot Class A office property located in Richmond, Virginia, for approximately $247.1 million. Net proceeds were approximately $129.9 million after the repayment of mortgage indebtedness of approximately $104.0 million, a prepayment penalty of approximately $4.3 million and unfunded tenant obligations and other closing costs totaling approximately $8.9 million.

•

On May 19, 2005, we extended and modified our $605.0 million unsecured revolving credit agreement (the “Unsecured Line of Credit”) for a term expiring on October 30, 2007 with a one-year extension option. The interest rate on borrowings has been reduced from a per annum variable rate of Eurodollar plus 0.70% to Eurodollar plus 0.65%, subject to adjustment in the event of a change in the unsecured debt ratings of our Operating Partnership.

•

On June 21, 2005, we refinanced the construction loan facility collateralized by Times Square Tower located in New York City. The new mortgage loan totaling $475.0 million bears interest at a variable

BOSTON PROPERTIES LIMITED PARTNERSHIP

rate equal to LIBOR plus 0.50% per annum and matures on July 9, 2008. The new mortgage loan includes provisions for two one-year extensions, at our option. We also entered into an agreement to cap the interest rate at 10.5% per annum.

Transactions completed subsequent to June 30, 2005:

•

On July 19, 2005, we refinanced at maturity the mortgage loan collateralized by 599 Lexington Avenue located in New York City. The mortgage loan totaling $225.0 million bore interest at a fixed rate of 7.0% per annum. The mortgage loan was refinanced through a secured draw from our Unsecured Line of Credit.

•

Critical Accounting Policies

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America, or GAAP, requires management to use judgment in the application of accounting policies, including making estimates and assumptions. We base our estimates on historical experience and on various other assumptions believed to be reasonable under the circumstances. These judgments affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. If our judgment or interpretation of the facts and circumstances relating to various transactions had been different, it is possible that different accounting policies would have been applied resulting in a different presentation of our financial statements. From time to time, we evaluate our estimates and assumptions. In the event estimates or assumptions prove to be different from actual results, adjustments are made in subsequent periods to reflect more current information. Below is a discussion of accounting policies that we consider critical in that they may require complex judgment in their application or require estimates about matters that are inherently uncertain.

Real Estate

Upon acquisitions of real estate, we assess the fair value of acquired tangible and intangible assets, including land, buildings, tenant improvements, “above-” and “below-market” leases, origination costs, acquired in-place leases, other identified intangible assets and assumed liabilities in accordance with Statement of Financial Accounting Standards (“SFAS”) No. 141, “Business Combinations” and allocate the purchase price to the acquired assets and assumed liabilities, including land at appraised value and buildings at replacement cost. We assess and consider fair value based on estimated cash flow projections that utilize appropriate discount and/or capitalization rates, as well as available market information. Estimates of future cash flows are based on a number of factors including the historical operating results, known and anticipated trends, and market and economic conditions. The fair value of the tangible assets of an acquired property considers the value of the property as if it were vacant. We also consider an allocation of purchase price of other acquired intangibles, including acquired in-place leases that may have a customer relationship intangible value, including (but not limited to) the nature and extent of the existing relationship with the tenants, the tenant’s credit quality and expectations of lease renewals. Based on our acquisitions to date, our allocation to customer relationship intangible assets has been immaterial.

We record acquired “above-” and “below-market” leases at their fair values using a discount rate which reflects the risks associated with the leases acquired, equal to the difference between (1) the contractual amounts to be paid pursuant to each in-place lease and (2) management’s estimate of fair market lease rates for each corresponding in-place lease, measured over a period equal to the remaining term of the lease for above-market

BOSTON PROPERTIES LIMITED PARTNERSHIP

leases and the initial term plus the term of any below-market fixed-rate renewal options for below-market leases. Other intangible assets acquired include amounts for in-place lease values that are based on our evaluation of the specific characteristics of each tenant’s lease. Factors to be considered include estimates of carrying costs during hypothetical expected lease-up periods considering current market conditions, and costs to execute similar leases. In estimating carrying costs, we include real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, depending on local market conditions. In estimating costs to execute similar leases, we consider leasing commissions, legal and other related expenses.

Real estate is stated at depreciated cost. The cost of buildings and improvements includes the purchase price of property, legal fees and other acquisition costs. Costs directly related to the development of properties are capitalized. Capitalized development costs include interest, internal wages, property taxes, insurance, and other project costs incurred during the period of development.

Management reviews its long-lived assets used in operations for impairment when there is an event or change in circumstances that indicates an impairment in value. An asset is considered impaired when the undiscounted future cash flows are not sufficient to recover the asset’s carrying value. If such impairment is present, an impairment loss is recognized based on the excess of the carrying amount of the asset over its fair value. The evaluation of anticipated cash flows is highly subjective and is based in part on assumptions regarding future occupancy, rental rates and capital requirements that could differ materially from actual results in future periods. Since cash flows on properties considered to be “long-lived assets to be held and used” as defined by SFAS No. 144, “Accounting for the Impairment or Disposal of Long-Lived Assets,” (“SFAS No. 144”) are considered on an undiscounted basis to determine whether an asset has been impaired, our established strategy of holding properties over the long term directly decreases the likelihood of recording an impairment loss. If our strategy changes or market conditions otherwise dictate an earlier sale date, an impairment loss may be recognized and such loss could be material. If we determine that an impairment has occurred, the affected assets must be reduced to their fair value. No such impairment losses have been recognized to date.

SFAS No. 144, which was adopted on January 1, 2002, requires that qualifying assets and liabilities and the results of operations that have been sold, or otherwise qualify as “held for sale,” be presented as discontinued operations in all periods presented if the property operations are expected to be eliminated and we will not have significant continuing involvement following the sale. The components of the property’s net income that is reflected as discontinued operations include the net gain (or loss) on the eventual disposition of the property held for sale, operating results, depreciation and interest expense (if the property is subject to a secured loan which will be repaid or assigned upon sale). Following the classification of a property as “held for sale,” no further depreciation is recorded on the assets.

A variety of costs are incurred in the acquisition, development and leasing of our properties. After determination is made to capitalize a cost, it is allocated to the specific component of a project that is benefited. Determination of when a development project is substantially complete and capitalization must cease involves a degree of judgment. Our capitalization policy on our development properties is guided by SFAS No. 34 “Capitalization of Interest Cost” and SFAS No. 67 “Accounting for Costs and Initial Rental Operations of Real Estate Projects.” The costs of land and building under development include specifically identifiable costs. The capitalized costs include pre-construction costs essential to the development of the property, development costs, construction costs, interest costs, real estate taxes, salaries and related costs and other costs incurred during the period of development. We consider a construction project as substantially completed and held available for occupancy upon the completion of tenant improvements, but no later than one year from cessation of major construction activity. We cease capitalization on the portions substantially completed and occupied or held available for occupancy, and capitalize only those costs associated with the portions under construction.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Investments in Unconsolidated Joint Ventures

Except for ownership interests in a variable interest entity, we account for our investments in joint ventures under the equity method of accounting because we exercise significant influence over, but do not control, these entities. These investments are recorded initially at cost, as Investments in Unconsolidated Joint Ventures, and are subsequently adjusted for equity in earnings and cash contributions and distributions. Any difference between the carrying amount of these investments on our balance sheet and the underlying equity in net assets is amortized as an adjustment to equity in earnings of unconsolidated joint ventures over 40 years. Under the equity method of accounting, our net equity is reflected on the consolidated balance sheets, and our share of net income or loss from the joint ventures is included on the consolidated statements of operations. The joint venture agreements may designate different percentage allocations among investors for profits and losses, however, our recognition of joint venture income or loss generally follows the joint venture’s distribution priorities, which may change upon the achievement of certain investment return thresholds. For ownership interests in variable interest entities, we consolidate those in which we are the primary beneficiary.

Revenue Recognition

Base rental revenue is reported on a straight-line basis over the terms of our respective leases. In accordance with SFAS No. 141, we recognize rental revenue of acquired in-place “above-” and “below-market” leases at their fair values over the terms of the respective leases. Accrued rental income represents rental income recognized in excess of rent payments actually received pursuant to the terms of the individual lease agreements.

Our leasing strategy is generally to secure financially stable tenants that meet our underwriting guidelines. Furthermore, following the initiation of a lease, we continue to actively monitor the tenant’s creditworthiness to ensure that all tenant-related assets are recorded at their realizable values. When assessing a tenant’s credit quality, we:

•

review relevant financial information regarding the tenant, including:

•

financial ratios;

•

net worth;

•

debt to market capitalization; and

•

liquidity;

•

evaluate the depth and experience of the tenant’s management team; and

•

assess the strength/growth of the tenant’s industry.

As a result of the underwriting process, tenants are then categorized into one of three categories:

•

low risk tenants;

•

the tenant’s credit is such that we require collateral in which case we:

•

require security deposit; and/or

•

reduce up-front tenant improvement investment; or

•

the tenant’s credit is below our acceptable parameters.

We maintain a rigorous process of monitoring the credit quality of our tenant base. We provide an allowance for doubtful accounts arising from estimated losses that could result from the tenant’s inability to make required current rent payments and an allowance against accrued rental income for future potential losses that we deem to be unrecoverable over the term of the lease.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Tenant receivables are assigned a credit rating of 1-4 with a rating of 1 representing the highest possible rating with no allowance recorded and a rating of 4 representing the lowest credit rating, recording a full reserve against the receivable balance. Among the factors considered in determining the credit ratings are:

•

payment history;

•

credit status and change in status (credit ratings for public companies are used as a primary metric);

•

change in tenant space needs (i.e., expansion/downsize);

•

tenant financial performance;

•

economic conditions in a specific geographic region; and

•

industry specific credit considerations.

If our estimates of collectibility differ from the cash received, the timing and amount of our reported revenue could be impacted. The average remaining term of our in-place tenant leases was approximately 7.5 years as of June 30, 2005 calculated on a weighted average, based on net rentable square feet. The credit risk is mitigated by the high quality of our existing tenant base, reviews of prospective tenants’ risk profiles prior to lease execution and ongoing monitoring of our portfolio to identify potential problem tenants.

Recoveries from tenants, consisting of amounts due from tenants for common area maintenance, real estate taxes and other recoverable costs, are recognized as revenue in the period during which the expenses are incurred. Tenant reimbursements are recognized and presented in accordance with Emerging Issues Task Force, or EITF, Issue 99-19 “Reporting Revenue Gross as a Principal versus Net as an Agent,” or Issue 99-19. Issue 99-19 requires that these reimbursements be recorded on a gross basis, as we are generally the primary obligor with respect to purchasing goods and services from third-party suppliers, have discretion in selecting the supplier and have credit risk.

Our hotel revenues are derived from room rentals and other sources such as charges to guests for long-distance telephone service, fax machine use, movie and vending commissions, meeting and banquet room revenue and laundry services. Hotel revenues are recognized as earned.

Management fees are recorded and earned based on a percentage of collected rents at the properties under management, and not on a straight line basis, since such fees are contingent upon the collection of rents.

Gains on sales of real estate are recognized pursuant to the provisions of SFAS No. 66, “Accounting for Sales of Real Estate.” The specific timing of the sale is measured against various criteria in SFAS No. 66 related to the terms of the transactions and any continuing involvement in the form of management or financial assistance associated with the properties. If the sales criteria are not met, we defer gain recognition and account for the continued operations of the property by applying the finance, installment or cost recovery methods, as appropriate, until the sales criteria are met.

Depreciation and Amortization

We compute depreciation and amortization on our properties using the straight-line method based on estimated useful asset lives. In accordance with SFAS No. 141, we allocate the acquisition cost of real estate to land, building, tenant improvements, acquired “above-” and “below-market” leases, origination costs and acquired in-place leases based on management’s assessment of their fair values and depreciate or amortize these assets over their useful lives. The amortization of acquired “above-” and “below- market” leases and acquired in-place leases is recorded as an adjustment to revenue and depreciation and amortization, respectively, in the Consolidated Statements of Operations.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Results of Operations

The following discussion is based on our Consolidated Financial Statements for the three and six months ended June 30, 2005 and 2004.

At June 30, 2005 and June 30, 2004, we owned or had interests in a portfolio of 122 and 126 properties, respectively (in each case, the “Total Property Portfolio”). As a result of changes within our Total Property Portfolio, the financial data presented below shows significant changes in revenue and expenses from period-to-period. Accordingly, we do not believe that our period-to-period financial data are necessarily comparable. Therefore, the comparison of operating results for the three and six months ended June 30, 2005 and 2004 show separately changes attributable to the properties that were owned by us throughout each period compared (the “Same Property Portfolio”) and the changes attributable to the Total Property Portfolio.

In our analysis of operating results, particularly to make comparisons of net operating income between periods meaningful, it is important to provide information for properties that were in-service and owned by us throughout each period presented. We refer to properties acquired or placed in-service prior to the beginning of the earliest period presented and owned by us through the end of the latest period presented as our Same Property Portfolio. The Same Property Portfolio therefore excludes properties placed in-service, acquired or repositioned after the beginning of the earliest period presented, or disposed of prior to the end of the latest period presented.

Net operating income, or “NOI,” is a non-GAAP financial measure equal to net income available to common unitholders, the most directly comparable GAAP financial measure, plus minority interest in Operating Partnership, losses from early extinguishments of debt, depreciation and amortization, interest expense and general and administrative expenses, less gains on sales of real estate from discontinued operations, income (loss) from discontinued operations, gains on sales of real estate and land held for development, income from unconsolidated joint ventures, minority interests in property partnerships, interest and other income and development and management services income. We use NOI internally as a performance measure and believe NOI provides useful information to investors regarding our financial condition and results of operations because it reflects only those income and expense items that are incurred at the property level. Therefore, we believe NOI is a useful measure for evaluating the operating performance of our real estate assets.

Our management also uses NOI to evaluate regional property level performance and to make decisions about resource allocations. Further, we believe NOI is useful to investors as a performance measure because, when compared across periods, NOI reflects the impact on operations from trends in occupancy rates, rental rates, operating costs and acquisition and development activity on an unleveraged basis, providing perspective not immediately apparent from net income. NOI excludes certain components from net income in order to provide results that are more closely related to a property’s results of operations. For example, interest expense is not necessarily linked to the operating performance of a real estate asset and is often incurred at the corporate level as opposed to the property level. In addition, depreciation and amortization, because of historical cost accounting and useful life estimates, may distort operating performance at the property level. NOI presented by us may not be comparable to NOI reported by other REITs that define NOI differently. We believe that in order to facilitate a clear understanding of our operating results, NOI should be examined in conjunction with net income as presented in our consolidated financial statements. NOI should not be considered as an alternative to net income as an indication of our performance or to cash flows as a measure of liquidity or ability to make distributions.

Comparison of the six months ended June 30, 2005 to the six months ended June 30, 2004.

The table below shows selected operating information for the Same Property Portfolio and the Total Property Portfolio. The Same Property Portfolio consists of the 112 properties totaling approximately 29.2 million net rentable square feet of office space, including three hotel properties, acquired or placed in-service on

BOSTON PROPERTIES LIMITED PARTNERSHIP

or prior to January 1, 2004 and owned through June 30, 2005. The Total Property Portfolio includes the effects of the other properties either placed in-service, acquired or repositioned after January 1, 2004 or disposed of on or prior to June 30, 2005. This table includes a reconciliation from the Same Property Portfolio to the Total Property Portfolio by also providing information for the six months ended June 30, 2005 and 2004 with respect to the properties which were acquired, placed in-service, repositioned or sold.

In September 2004, we commenced the redevelopment of our Capital Gallery property in Washington, D.C. Capital Gallery is a Class A office property currently totaling approximately 397,000 net rentable square feet. The project entails removing a three-story low-rise section of the property, which is comprised of 100,000 net rentable square feet, from in-service status and developing it into a ten-story office building resulting in a total complex size of approximately 610,000 net rentable square feet upon completion. This property is included in Properties Repositioned for the six months ended June 30, 2005 and June 30, 2004.

BOSTON PROPERTIES LIMITED PARTNERSHIP


	Same Property Portfolio									Properties Sold					Properties Acquired				Properties Placed In-Service				Properties Repositioned				Total Property Portfolio
(dollars in thousands)	2005		2004		Increase/ (Decrease)			% Change		2005			2004		2005		2004		2005		2004		2005		2004		2005			2004			Increase/ (Decrease)			% Change
Rental Revenue:
Rental Revenue	$	588,401	$	578,962	$	9,439		1.63	%	$	17,160		$	22,572	$	13,435	$	6,496	$	38,557	$	7,108	$	6,570	$	7,709	$	664,123		$	622,847		$	41,276		6.63	%
Termination Income		5,355		1,548		3,807		245.93	%		—			9		—		—		—		—		—		—		5,355			1,557			3,798		243.93	%

Total Rental Revenue		593,756		580,510		13,246		2.28	%		17,160			22,581		13,435		6,496		38,557		7,108		6,570		7,709		669,478			624,404			45,074		7.22	%

Operating Expenses		198,965		188,799		10,166		5.38	%		5,811			8,062		2,832		1,421		5,930		600		1,639		2,289		215,177			201,171			14,006		6.96	%

Net Operating Income, excluding hotels		394,791		391,711		3,080		0.79	%		11,349			14,519		10,603		5,075		32,627		6,508		4,931		5,420		454,301			423,233			31,068		7. 34	%

Hotel Net Operating Income (1)		7,803		7,290		513		7.04	%		—			—		—		—		—		—		—		—		7,803			7,290			513		7.04	%

Consolidated Net Operating Income (1)		402,594		399,001		3,593		0.90	%		11,349			14,519		10,603		5,075		32,627		6,508		4,931		5,420		462,104			430,523			31,581		7.34	%

Other Revenue:
Development and Management Services		—		—		—		—			—			—		—		—		—		—		—		—		8,673			9,283			(610	)	(6.57	%)
Interest and Other		—		—		—		—			—			—		—		—		—		—		—		—		4,574			8,618			(4,044	)	(46.93	%)

Total Other Revenue		—		—		—		—			—			—		—		—		—		—		—		—		13,247			17,901			(4,654	)	(26.0	%)
Other Expenses:
General and administrative expense		—		—		—		—			—			—		—		—		—		—		—		—		29,065			25,093			3,972		15.83	%
Interest		—		—		—		—			—			—		—		—		—		—		—		—		157,587			149,094			8,493		5.70	%
Depreciation and amortization		119,077		108,160		10,917		10.09	%		2,302			4,101		2,609		1,244		9,044		1,164		890		979		133,922			115,648			18,274		15.80	%
Losses from early extinguishments of debt		—		—		—		—			—			—		—		—		—		—		—		—		12,896			6,258			6,638		106.07	%

Total Other Expenses		119,077		108,160		10,917		10.09	%		2,302			4,101		2,609		1,244		9,044		1,164		890		979		333,470			296,093			37,377		12.62	%

Income before minority interests	$	283,517	$	290,841		(7,324	)	(2.52	%)		9,047		$	10,418	$	7,994	$	3,831	$	23,583	$	5,344	$	4,041	$	4,441	$	141,881		$	152,331			(10,450	)	(6.87	%)
Income from unconsolidated joint ventures	$	1,405	$	1,953	($	548	)	(28.06	%)		—		$	303	$	52		—	$	725		—		—		—		2,182			2,256			(74	)	(3.28	%)

Income (loss) from discontinued operations		—		—		—		—		($	486	)	$	2,846		—		—		—		—		—		—		(486	)		2,846			(3,332	)	(117.08	%)
Minority interests in property partnerships																												3,124			1,677			1,447		86.29	%
Gains on sales of real estate																												126,978			9,822			117,156		1,192.79	%
Gains on sales of land held for development																												1,445			—			1,445		100.0	%
Gains on sales of real estate from discontinued operations																												10,671			26,996			(16,325	)	(60.47	%)
Preferred distributions and allocation of undistributed earnings																												(11,466	)		(10,364	)		1,102		10.63	%

Net Income available to common unitholders																											$	274,329		$	185,564		$	88,765		47.84	%

(1)	For a detailed discussion of NOI, including the reasons management believes NOI is useful to investors, see page 31.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Rental Revenue

The increase of $41.3 million in the Total Property Portfolio is comprised of increases and decreases within the five categories that represent our Total Property Portfolio. Rental revenue from Properties Placed In-Service increased approximately $31.4 million, Properties Acquired increased approximately $6.9 million, Same Property Portfolio increased approximately $9.4 million, Properties Sold decreased approximately $5.4 million and Properties Repositioned decreased approximately $1.0 million.

The increase in rental revenue from Properties Placed In-Service relates to placing Times Square Tower and New Dominion Technology Park, Building Two in-service during the third quarter of 2004, as detailed below.


Property	Date Placed in Service	Rental Revenue for the six months ended June 30,
Property	Date Placed in Service	2005		2004		Change
		(in thousands)
Times Square Tower	3^rd Quarter 2004	$	33,795	$	7,108	$	26,687
New Dominion Technology Park, Building Two	3^rd Quarter 2004		4,762		—		4,762

Total		$	38,557	$	7,108	$	31,449

The purchase of the remaining interest in 140 Kendrick Street as of March 24, 2004 and the acquisition of 1330 Connecticut Avenue on April 1, 2004 increased revenue by approximately $6.9 million, as detailed below:


Property	Date Acquired	Rental Revenue for the six months ended June 30,
Property	Date Acquired	2005		2004		Change
		(in thousands)
1330 Connecticut Avenue	April 1, 2004	$	7,469	$	3,582	$	3,887
140 Kendrick Street	March 24, 2004		5,966		2,914		3,052

Total		$	13,435	$	6,496	$	6,939

Rental revenue from the Same Property Portfolio increased $9.4 million for the six months ended June 30, 2005 compared to the six months ended June 30, 2004. Included in rental revenue is an overall increase in base rental revenue of approximately $2.8 million as well as an increase in straight line rents of approximately $1.2 million. Approximately $3.2 million of the increase from the Same Property Portfolio was due to an increase in operating income attributed to higher operating expenses. With respect to leases that expire during the next 18 months, we anticipate that the estimated market rents on those spaces indicate a roll-down of approximately 9%.

In May 2005, we completed the sales of 100 East Pratt Street in Baltimore, Maryland and Riverfront Plaza in Richmond, Virginia for net cash proceeds of approximately $92.8 million and $129.9 million, respectively. These properties are included in Properties Sold for the six months ended June 30, 2005 and June 30, 2004 due to our continuing involvement as the property manager for each property. In addition, Hilltop Office Center, which was sold in February 2004 is included in Properties Sold for the six months ended June 30, 2005 and 2004. Rental revenue from Properties Sold for the six months ended June 30, 2005 and June 30, 2004 was $17.2 million and $22.6 million, respectively.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Termination Income

Termination income for the six months ended June 30, 2005 was related to fourteen tenants across the portfolio that terminated their leases and made termination payments totaling approximately $5.4 million. This compared to termination income earned for the six months ended June 30, 2004 related to eight tenants totaling $1.6 million. For the remainder of 2005 we expect to recognize approximately $1.0 million in termination income.

Operating Expenses

The $14.0 million increase in property operating expenses in the Total Property Portfolio (real estate taxes, utilities, insurance, repairs and maintenance, cleaning and other property-related expenses) is comprised of increases and decreases within the five categories that represent our Total Property Portfolio. Operating expenses for Properties Placed In-Service increased approximately $5.3 million, Properties Acquired increased approximately $1.4 million, Same Property Portfolio increased approximately $10.2 million, Properties Sold decreased approximately $2.3 million and Properties Repositioned decreased approximately $0.6 million.

We placed Times Square Tower and New Dominion Technology Park, Building Two in-service during the third quarter of 2004 which increased operating expenses by approximately $5.3 million, as detailed below.


Property	Date Placed in Service	Operating Expenses for the six months ended June 30,
Property	Date Placed in Service	2005		2004		Change
		(in thousands)
Times Square Tower	3^rd Quarter 2004	$	5,252	$	600	$	4,562
New Dominion Technology Park, Building Two	3^rd Quarter 2004		678		—		678

Total		$	5,930	$	600	$	5,330

In addition, approximately $1.4 million of the increase in Total Property Portfolio operating expenses primarily relates to the acquisitions of 140 Kendrick Street and 1330 Connecticut Avenue, as detailed below:


Property	Date Acquired	Operating Expenses six months ended June 30,
Property	Date Acquired	2005		2004		Change
		(in thousands)
1330 Connecticut Avenue	April 1, 2004	$	2,106	$	1,009	$	1,097
140 Kendrick Street	March 24, 2004		726		412		314

Total		$	2,832	$	1,421	$	1,411

Operating expenses from the Same Property Portfolio increased approximately $10.2 million for the six months ended June 30, 2005. Included in Same Property Portfolio operating expenses is an increase to real estate tax expense of approximately $4.6 million for the six months ended June 30, 2005 due to increased real estate tax assessments, with approximately half of this increase specifically attributed to properties located in New York City.

Hotel Net Operating Income

Net operating income for the hotel properties increased by approximately $0.5 million for the six months ended June 30, 2005 compared to June 30, 2004.

BOSTON PROPERTIES LIMITED PARTNERSHIP

The following reflects our occupancy and rate information for the three hotel properties for the six months ended June 30, 2005 and 2004:


	2005			2004			Percentage Change
Occupancy		76.8	%		79.1	%	(2.9	%)
Average daily rate	$	176.16		$	162.50		8.4	%
Revenue per available room, REVPAR	$	135.23		$	129.03		4.8	%

Development and Management Services

Our third-party fee income decreased approximately $0.6 million for the six months ended June 30, 2005 compared to 2004 due to the completion of third-party development projects in Washington, D.C. and near completion of our project at 90 Church Street in New York City. In addition, development fees on tenant improvement projects are lower in 2005 than for 2004 due to the timing of projects and lease executions.

In connection with the sales of Riverfront Plaza and 100 East Pratt Street, we are managing each of these properties, for a fee, through agreements with the buyers.

Interest and Other Income

Interest and other income decreased by $4.0 million for the six months ended June 30, 2005. In the first quarter of 2004 we recognized a net amount of approximately $7.0 million in connection with the termination by a third-party of an agreement to enter into a ground lease with us. Excluding this termination, interest income has increased approximately $3.0 million for the six months ended June 30, 2005 compared to the six months ended June 30, 2004 due to higher cash balances as well as higher interest rates during the six months ended June 30, 2005 compared to 2004. We expect interest income to decline in the fourth quarter of 2005 and into 2006 as a result of the special cash distribution payable to OP Unitholders on October 31, 2005.

Other Expenses

General and Administrative

General and administrative expenses in the Total Property Portfolio increased for the six months ended June 30, 2005 compared to the six months ended June 30, 2004 by approximately $4.0 million, or 15.83%. A majority of the increase is attributed to compensation expense increases during 2005. An aggregate of approximately $1.2 million of the increase is attributable to changes in the form of long-term equity-based compensation, as further described below.

BOSTON PROPERTIES LIMITED PARTNERSHIP

January 2003 will generally be expensed ratably as such restricted stock and LTIP Units vests over a five-year vesting period. Stock-based compensation associated with approximately $9.7 million of restricted stock and LTIP Units granted in January 2004 and approximately $12.5 million of restricted stock and LTIP Units granted in January 2005 will also be incurred ratably as such restricted stock and LTIP Units vest. To the extent Boston Properties, Inc. continues to grant restricted stock and LTIP Unit awards, our expense will continue to increase significantly until 2008 even if there are no future increases in the aggregate value of restricted equity granted each year. This is because we expense the value of the restricted stock and LTIP Unit awards ratably over the five-year vesting period and a full run-rate will not be achieved until 2008.

Interest Expense

Interest expense for the Total Property Portfolio increased approximately $8.5 million for the six months ended June 30, 2005 compared to the six months ended June 30, 2004. The majority of the increase is due to the cessation of interest capitalization at Times Square Tower and New Dominion Technology Park, Building Two, as well as the acquisition of 140 Kendrick Street and 1330 Connecticut Avenue in the second quarter of 2004. This increase was offset by the repayment of outstanding mortgage debt due to the sales of Riverfront Plaza and 100 East Pratt Street in the second quarter of 2005, as well as the repayment of mortgage debt at One and Two Reston Overlook and the 12300 and 12310 Sunrise Valley Drive buildings in the beginning of 2004.

At June 30, 2005, our variable rate debt consisted of our construction loans on our Times Square Tower, Capital Gallery Expansion and our Cambridge Center Seven construction projects. The following summarizes our outstanding debt as of June 30, 2005 compared with June 30, 2004.


	June 30,
	2005			2004
	(dollars in thousands)
Debt Summary:
Balance
Fixed rate	$	4,376,618		$	4,549,978
Variable rate		522,139			444,725

Total	$	4,898,757		$	4,994,703

Percent of total debt:
Fixed rate		89.34	%		91.10	%
Variable rate		10.66	%		8.90	%

Total		100.00	%		100.00	%

Weighted average interest rate at end of period:
Fixed rate		6.65	%		6.68	%
Variable rate		3.85	%		2.28	%

Total		6.36	%		6.28	%

Depreciation and Amortization

Depreciation and amortization expense for the Total Property Portfolio increased approximately $18.3 million for the six months ended June 30, 2005 compared to the six months ended June 30, 2004. Depreciation and amortization from Properties Placed In-Service and Acquired increased approximately $9.2 million, Same Properties increased approximately $10.9 million and Properties Sold decreased approximately $1.8 million.

BOSTON PROPERTIES LIMITED PARTNERSHIP

The additions to the Total Property Portfolio through acquisitions and placing properties in-service increased depreciation and amortization expense by approximately $9.2 million, as detailed below.


Property	Acquired/Placed in-Service	Depreciation and Amortization for the six months ended June 30,
Property	Acquired/Placed in-Service	2005		2004		Change
		(in thousands)
Times Square Tower	Placed in-service	$	8,192	$	1,164	$	7,028
1330 Connecticut Avenue	Acquired		1,596		737		859
140 Kendrick Street	Acquired		1,013		507		506
New Dominion Technology Park, Building Two	Placed in-service		852		—		852

Total Additions		$	11,653	$	2,408	$	9,245

Subsequent to our press release issued on July 26, 2005, we recorded a depreciation adjustment of approximately $1.4 million. As a result of this adjustment, our earnings per unit for the three and six months ended June 30, 2005 as reported in this Form 10-Q are $0.01 per unit less (on both a basic and diluted basis) than previously disclosed in our press release.

Capitalized Costs

Costs directly related to the development of rental properties are not included in our operating results. These costs are capitalized and included in real estate assets on our Consolidated Balance Sheet and amortized over their useful lives. Capitalized development costs include interest, wages, property taxes, insurance and other project costs incurred during the period of development. Capitalized wages for the six months ended June 30, 2005 and June 30, 2004 were $3.1 million and $2.9 million, respectively. These costs are not included in the general and administrative expenses discussed above. Interest capitalized for the six months ended June 30, 2005 and 2004 was $1.6 million and $8.4 million, respectively. These costs are not included in the interest expense referenced above. During the third quarter of 2004, we placed in-service Times Square Tower and New Dominion Technology Park Building Two development projects, and ceased capitalizing interest in accordance with our capitalization policy.

Losses from early extinguishments of debt

In connection with the sales of 100 East Pratt Street and Riverfront Plaza, we repaid the mortgage loans collateralized by the properties totaling approximately $188 million. During the six months ended June 30, 2005, we recognized a loss from early extinguishment of debt totaling approximately $11.0 million, consisting of prepayment fees of approximately $10.8 million and the write-off of unamortized deferred financing costs of approximately $0.2 million. We also recognized a $1.9 million loss from early extinguishment of debt which relates to the refinancing of our Times Square Tower mortgage loan as well the modification on our Unsecured Line of Credit.

For the six months ended June 30, 2004, we recognized a loss from early extinguishment of debt totaling approximately $6.3 million related to the repayments of our mortgage loans collateralized by One and Two Reston Overlook and the 12300 and 12310 Sunrise Valley Drive buildings.

Joint Ventures

During the first quarter of 2005, we placed in-service 901 New York Avenue, a 539,000 net rentable square foot Class A office property located in Washington, D.C., in which we have a 25% ownership interest. The addition of this property contributed approximately $0.7 million to joint venture income for the six months ended June 30, 2005. As of August 5, 2005 this property is 96% leased.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Other

The decrease in income (loss) from discontinued operations in the Total Property Portfolio for the six months ended June 30, 2005 was a result of properties sold or designated as held for sale during 2005 and 2004 which are no longer included in our operations as of June 30, 2005. Below is a list of properties included in discontinued operations for the six months ended June 30, 2005 and 2004:


Six months ended June 30, 2005		Six months ended June 30, 2004
Old Federal Reserve		Old Federal Reserve
		Sugarland Business Park-Building One
		204 Second Avenue
		560 Forbes Boulevard
		Decoverly Two, Three, Six and Seven
		38 Cabot Boulevard
		The Arboretum
		430 Rozzi Place
		Sugarland Business Park-Building Two

Gains on sales of real estate for the six months ended June 30, 2005 in the Total Property Portfolio relate to the sales of Riverfront Plaza and 100 East Street which are not included in discontinued operations due to our continuing involvement in the management, for a fee, of these properties after the sales. Gains on sales of real estate for the six months ended June 30, 2004 in the Total Property Portfolio relate to the sale of Hilltop Office Center and a land parcel in Burlington, MA. Hilltop Office Center is not included in discontinued operations due to our continuing involvement in the management, for a fee, of these properties after the sale.

Gains on sales of land held for development for the six months ended June 30, 2005 in the Total Property Portfolio relate to the sale of Decoverly Four and Five, consisting of two undeveloped land parcels located in Rockville, Maryland.

The only property included in our gains on sales of real estate from discontinued operations for the six months ended June 30, 2005 in the Total Property Portfolio was the Old Federal Reserve. Properties included in our gains on sales of real estate from discontinued operations for the six months ended June 30, 2004 in the Total Property Portfolio are related to the sale of 430 Rozzi Place, Sugarland Business Park- Building Two, The Arboretum, Decoverly Two, Three, Six and Seven and 38 Cabot Boulevard.

Comparison of the three months ended June 30, 2005 to the three months ended June 30, 2004.

The table below shows selected operating information for the Same Property Portfolio and the Total Property Portfolio. The Same Property Portfolio consists of the 116 properties totaling approximately 29.8 million net rentable square feet of office space, including three hotel properties, acquired or placed in-service on or prior to April 1, 2004 and owned through June 30, 2005. The Total Property Portfolio includes the effects of the other properties either placed in-service, acquired or repositioned after April 1, 2004 or disposed of on or prior to June 30, 2005. This table includes a reconciliation from the Same Property Portfolio to the Total Property Portfolio by also providing information for the three months ended June 30, 2005 and 2004 with respect to the properties which were acquired, placed in-service, repositioned or sold.

BOSTON PROPERTIES LIMITED PARTNERSHIP


	Same Property Portfolio									Properties Sold				Properties Acquired				Properties Placed In-Service				Properties Repositioned				Total Property Portfolio
(dollars in thousands)	2005		2004		Increase/ (Decrease)			% Change		2005		2004		2005		2004		2005		2004		2005		2004		2005			2004			Increase/ (Decrease)			% Change
Rental Revenue:
Rental Revenue	$	301,486	$	294,981	$	6,505		2.21	%	$	5,289	$	11,260	$	—	$	—	$	19,453	$	6,870	$	3,257	$	3,792	$	329,485		$	316,903		$	12,582		3.97	%
Termination Income		3,979		—		3,979		100.0	%		—		—		—		—		—		—		—		—		3,979			—			3,979		100.0	%

Total Rental Revenue		305,465		294,981		10,484		3.55	%		5,289		11,260		—		—		19,453		6,870		3,257		3,792		333,464			316,903			16,561		5.23	%

Operating Expenses		101,241		95,357		5,884		6.17	%		1,792		4,007		—		—		2,691		600		852		1,085		106,576			101,049			5,527		5.47	%

Net Operating Income, excluding hotels		204,224		199,624		4,600		2.30	%		3,497		7,253		—		—		16,762		6,270		2,405		2,707		226,888			215,854			11,034		5.11	%

Hotel Net Operating Income (1)		6,087		5,790		297		5.13	%		—		—		—		—		—		—		—		—		6,087			5,790			297		5.13	%

Consolidated Net Operating Income (1)		210,311		205,414		4,897		2.38	%		3,497		7,253		—		—		16,762		6,270		2,405		2,707		232,975			221,644			11,331		5.11	%

Other Revenue:
Development and Management Services		—		—		—		—			—		—		—		—		—		—		—		—		4,137			5,961			(1,824	)	(30.60	%)
Interest and Other		—		—		—		—			—		—		—		—		—		—		—		—		2,937			1,090			1,847		169.45	%

Total Other Revenue		—		—		—		—			—		—		—		—		—		—		—		—		7,074			7,051			23		0.33	%
Other Expenses:
General and administrative expense		—		—		—		—			—		—		—		—		—		—		—		—		14,252			12,493			1,759		14.08	%
Interest		—		—		—		—			—		—		—		—		—		—		—		—		78,233			74,789			3,444		4.60	%
Depreciation and amortization		61,422		56,233		5,189		9.23	%		—		2,049		—		—		4,620		1,164		447		495		66,489			59,941			6,548		10.92	%
Losses from early extinguishments of debt		—		—		—		—			—		—		—		—		—		—		—		—		12,896			—			12,896		100.0	%

Total Other Expenses		61,422		56,233		5,189		9.23	%		—		2,049		—		—		4,620		1,164		447		495		171,870			147,223			24,647		16.74	%

Income before minority interests	$	148,889	$	149,181		(292	)	(0.20	%)	$	3,497	$	5,204	$	—	$	—	$	12,142	$	5,106	$	1,958	$	2,212		68,179			81,472			(13,293	)	(16.32	%)
Income from unconsolidated joint ventures	$	231	$	879	($	648	)	(73.72	%)	$	—	$	—	$	24	$	—	$	592	$	—		—		—		847			879			(32	)	(3.64	%)

Income (loss) from discontinued operations		—		—		—		—		$	—	$	856		—		—		—		—		—		—		—			856			(856	)	(100.0	%)
Minority interests in property partnerships																											1,472			1,292			180		13.93	%
Gains on sales of real estate																											126,978			1,658			125,320		755.85	%
Gains on sales of real estate from discontinued operations																											10,671			23,923			(13,252	)	(55.39	%)
Preferred distributions and allocation of undistributed earnings																											(8,213	)		(5,211	)		3,002		57.61	%

Net Income available to common unitholders																										$	199,934		$	104,869		$	95,065		90.65	%

(1)	For a detailed discussion of NOI, including the reasons management believes NOI is useful to investors, see page 31.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Rental Revenue

The increase of $12.6 million in the Total Property Portfolio is comprised of increases and decreases within the five categories that represent our Total Property Portfolio. Rental revenue from Properties Placed In-Service increased approximately $12.6 million, Same Property Portfolio increased approximately $6.5 million, Properties Sold decreased approximately $6.0 million and Properties Repositioned decreased approximately $0.5 million.

The increase in rental revenues from Properties Placed In-Service relates to placing Times Square Tower and New Dominion Technology Park, Building Two in-service during the third quarter of 2004, as detailed below.


		Rental Revenue for the three months ended June 30,
Property	Date Placed in Service	2005		2004		Change
		(in thousands)
Times Square Tower	3^rd Quarter 2004	$	17,072	$	6,870	$	10,202
New Dominion Technology Park, Building Two	3^rd Quarter 2004		2,381		—		2,381

Total		$	19,453	$	6,870	$	12,583

The increase in rental revenue from Same Property Portfolio increased $6.5 million for the three months ended June 30, 2005 compared to the three months ended June 30, 2004. Included in rental revenue is an overall increase to base rental revenue of approximately $0.5 million for the three months ended June 30, 2005 compared to June 30, 2004, as well as an increase of $1.6 million attributed to straight line rents. Approximately $2.4 million of the increase from the Same Property Portfolio was due to an increase in operating income attributed to higher operating expenses. With respect to leases that expire during the next 18 months we anticipate that the estimated market rents on those spaces indicate a roll-down of approximately 9%.

In May 2005, we completed the sales of 100 East Pratt Street in Baltimore, Maryland and Riverfront Plaza in Richmond, Virginia for net cash proceeds of approximately $92.8 million and $129.9 million, respectively. These properties are included in Properties Sold for the three months ended June 30, 2005 and June 30, 2004 due to our continuing involvement as the property manager for each property. Rental revenue for the three months ended June 30, 2005 and June 30, 2004 was approximately $5.3 million and $11.3 million, respectively.

Termination Income

Termination income for the three months ended June 30, 2005 was related to seven tenants across the portfolio that terminated their leases and made termination payments totaling approximately $4.0 million. This compared to no termination income earned for the three months ended June 30, 2004. For the remainder of 2005 we expect to recognize approximately $1.0 million in termination income.

Operating Expenses

The increase of $5.5 million in property operating expenses in the Total Property Portfolio (real estate taxes, utilities, insurance, repairs and maintenance, cleaning and other property-related expenses) is comprised of increases and decreases within the five categories that represent our Total Property Portfolio. Operating expenses for Properties Placed In-Service increased approximately $2.1 million, Same Property Portfolio operating expenses increased approximately $5.9 million, Properties Sold decreased approximately $2.2 million and Properties Repositioned decreased approximately $0.3 million.

BOSTON PROPERTIES LIMITED PARTNERSHIP

We placed Times Square Tower and New Dominion Technology Park, Building Two in-service during the third quarter of 2004 which increased operating expenses by approximately $2.1 million, as detailed below.


		Operating Expenses for the three months ended June 30,
Property	Date Placed in Service	2005		2004		Change
		(in thousands)
Times Square Tower	3^rdQuarter 2004	$	2,357	$	600	$	1,757
New Dominion Technology Park, Building Two	3^rdQuarter 2004		334		—		334

Total		$	2,691	$	600	$	2,091

Operating expenses from the Same Property Portfolio increased approximately $5.9 million for the three months ended June 30, 2005. Included in Same Property Portfolio operating expenses is an increase to real estate tax expense of approximately $1.6 million for the three months ended June 30, 2005 due to increased real estate tax assessments, with approximately half of this increase specifically attributed to properties located in New York City.

Hotel Net Operating Income

Net operating income for the hotel properties increased by approximately $0.3 million for the three months ended June 30, 2005 compared to June 30, 2004.

The following reflects our occupancy and rate information for the three hotel properties for the three months ended June 30, 2005 and 2004:


	2005			2004			Percentage Change
Occupancy		82.4	%		87.1	%	(5.4	%)
Average daily rate	$	198.65		$	180.22		10.2	%
Revenue per available room, REVPAR	$	164.09		$	157.06		4.5	%

Development and Management Services

Our third-party fee income decreased by approximately $1.8 million for the three months ended June 30, 2005 compared to 2004 due to the completion of third-party development projects in Washington, D.C. and near completion of our project at 90 Church Street in New York City. In addition, development fees on tenant improvement projects are lower in 2005 than for 2004 due to the timing of projects and lease executions.

In connection with the sales of Riverfront Plaza and 100 East Pratt Street, we are managing each of these properties, for a fee, through agreements with the buyers.

Interest and Other Income

Interest and other income increased by $1.8 million for the three months ended June 30, 2005 due to higher cash balances as well as higher interest rates during the three months ended June 30, 2005 compared to 2004. We expect interest income to decline in the fourth quarter of 2005 and into 2006 as a result of the special cash distribution payable to OP Unitholders on October 31, 2005.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Other Expenses

General and Administrative

General and administrative expenses in the Total Property Portfolio increased for the three months ended June 30, 2005 compared to June 30, 2004 by $1.8 million, or 14.08%. A majority of the increase is attributed to compensation expense increases during 2005. An aggregate of approximately $0.6 million of the increase is attributable to changes in the form of long-term equity-based compensation, as further described below.

Commencing in 2003, Boston Properties, Inc. issued restricted stock and/or LTIP Units, as opposed to granting stock options and restricted stock, under the 1997 Stock Option and Incentive Plan as our primary vehicle for employee equity compensation. An LTIP Unit is generally the economic equivalent of a share of Boston Properties, Inc.’s restricted stock. Employees generally vest in restricted stock and LTIP Units over a five-year term (for awards granted prior to 2003, vesting is in equal annual installments; for those granted in 2003 and beyond, vesting is over a five-year term of 0%, 0%, 25%, 35%, and 40%). Restricted stock and LTIP Units are valued based on observable market prices for similar instruments. Such value is recognized as an expense ratably over the corresponding employee service period. LTIP Units which were issued in January 2005 and future LTIP Unit awards will be valued using an option pricing model in accordance with the provisions of SFAS No. 123R. To the extent restricted stock or LTIP Units are forfeited prior to vesting, the corresponding previously recognized expense is reversed as an offset to “stock-based compensation.” Stock-based compensation expense associated with $6.1 million of equity-based compensation that was granted in January 2003 will generally be expensed ratably as such restricted stock and LTIP Units vests over a five-year vesting period. Stock-based compensation associated with approximately $9.7 million of restricted stock and LTIP Units granted in January 2004 and approximately $12.5 million of restricted stock and LTIP Units granted in January 2005 will also be incurred ratably as such restricted stock and LTIP Units vest. To the extent Boston Properties, Inc. continues to grant restricted stock and LTIP Unit awards, our expense will continue to increase significantly until 2008 even if there are no future increases in the aggregate value of restricted equity granted each year. This is because we expense the value of the restricted stock and LTIP Unit awards ratably over the five-year vesting period and a full run-rate will not be achieved until 2008.

Interest Expense

Interest expense for the Total Property Portfolio increased approximately $3.4 million for the three months ended June 30, 2005 compared to June 30, 2004. The majority of the increase is due to the cessation of interest capitalization at Times Square Tower and New Dominion Technology Park, Building Two, as well as the acquisition of 140 Kendrick Street and 1330 Connecticut Avenue in the second quarter of 2004. This increase was offset by the repayment of outstanding mortgage debt associated with the sales of Riverfront Plaza and 100 East Pratt Street in the second quarter of 2005 and the repayment of mortgage debt at One and Two Reston Overlook and 12300 and 12310 Sunrise Valley Drive buildings in the beginning of 2004.

BOSTON PROPERTIES LIMITED PARTNERSHIP

At June 30, 2005, our variable rate debt consisted of our construction loans on Times Square Tower, Capital Gallery Expansion and Seven Cambridge construction projects. The following summarizes our outstanding debt as of June 30, 2005 compared with June 30, 2004.


	June 30,
	2005			2004
	(dollars in thousands)
Debt Summary:
Balance
Fixed rate	$	4,376,618		$	4,549,978
Variable rate		522,139			444,725

Total	$	4,898,757		$	4,994,703

Percent of total debt:
Fixed rate		89.34	%		91.10	%
Variable rate		10.66	%		8.90	%

Total		100.00	%		100.00	%

Weighted average interest rate at end of period:
Fixed rate		6.65	%		6.68	%
Variable rate		3.85	%		2.28	%

Total		6.36	%		6.28	%

Depreciation and Amortization

Depreciation and amortization expense for the Total Property Portfolio increased approximately $6.5 million for the three months ended June 30, 2005 compared to the three months ended June 30, 2004. Depreciation and amortization from Properties Placed In-Service and Acquired increased approximately $3.5 million, Same Properties increased approximately $5.2 million, Properties Sold decreased approximately $2.1 million and Properties Repositioned decreased approximately $0.1 million.

The additions to the Total Property Portfolio through placing properties in-service increased depreciation and amortization expense by approximately $3.5 million, as detailed below.


Property	Acquired/Placed in Service	Depreciation and Amortization for the three months ended June 30,
Property	Acquired/Placed in Service	2005		2004		Change
		(in thousands)
Times Square Tower	Placed in-service	$	4,194	$	1,164	$	3,030
New Dominion Technology Park, Building Two	Placed in-service		426		—		426

Total Additions		$	4,620	$	1,164	$	3,456

Capitalized Costs

BOSTON PROPERTIES LIMITED PARTNERSHIP

their useful lives. Capitalized development costs include interest, wages, property taxes, insurance and other project costs incurred during the period of development. Capitalized wages for the three months ended June 30, 2005 and June 30, 2004 were $1.4 million and $1.6 million, respectively. These costs are not included in the general and administrative expenses discussed above. Interest capitalized for the three months ended June 30, 2005 and 2004 was $0.9 million and $3.5 million, respectively. These costs are not included in the interest expense referenced above. During the third quarter of 2004, we placed in-service Times Square Tower and New Dominion Technology Park, Building Two development projects and ceased capitalizing interest in accordance with our capitalization policy.

Losses from early extinguishments of debt

In connection with the sales of 100 East Pratt Street and Riverfront Plaza, we repaid the mortgage loans collateralized by the properties totaling approximately $188.0 million. During the three months ended June 30, 2005, we recognized a loss from early extinguishment of debt totaling approximately $11.0 million, consisting of prepayment fees of approximately $10.8 million and the write-off of unamortized deferred financing costs of approximately $0.2 million. We also recognized a $1.9 million loss from early extinguishment which relates to the refinancing of our Times Square Tower mortgage loan as well the modification of our Unsecured Line of Credit.

Joint Ventures

During the first quarter of 2005, we placed in-service 901 New York Avenue, a 539,000 net rentable square foot Class A office property located in Washington, D.C., in which we have a 25% ownership interest. The addition of this property contributed approximately $0.6 million to joint venture income for the three months ended June 30, 2005. As of August 5, 2005 this property is 96% leased.

Other

The decrease in income from discontinued operations in the Total Property Portfolio for the three months ended June 30, 2005 was a result of properties sold or designated as held for sale during 2004 which are no longer included in our operations as of June 30, 2005. Below is a list of properties included in discontinued operations for the three months ended June 30, 2005 and 2004:


Three months ended June 30, 2005		Three months ended June 30, 2004
Old Federal Reserve		Old Federal Reserve
		Sugarland Business Park-Building One
		204 Second Avenue
		560 Forbes Boulevard
		Decoverly Two, Three, Six and Seven
		38 Cabot Boulevard
		The Arboretum

Gains on sales of real estate for the three months ended June 30, 2005 in the Total Property Portfolio relate to the sales of Riverfront Plaza and 100 East Pratt Street. Gains on sales of real estate for the three months ended June 30, 2004 in the Total Property Portfolio relate to the sale of a land parcel in Burlington, MA.

The only property included in our gains on sales of real estate from discontinued operations for the three months ended June 30, 2005 in the Total Property Portfolio was the Old Federal Reserve. Properties included in our gains on sales of real estate from discontinued operations for the three months ended June 30, 2004 in the Total Property Portfolio are related to the sale of The Arboretum, Decoverly Two, Three, Six and Seven and 38 Cabot Boulevard.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Liquidity and Capital Resources

General

Our principal liquidity needs for the next twelve months are to:

•

fund normal recurring expenses;

•

fund our special cash distribution of $2.50 per OP Unit payable on October 31, 2005 to unitholders of record as of the close of business on September 30, 2005;

•

meet debt service requirements including the repayment or refinancing of $406 million of indebtedness that matures within the twelve month period;

•

fund capital expenditures, including tenant improvements and leasing costs;

•

fund current development costs not covered under construction loans;

•

fund new property acquisitions; and

•

make the minimum distribution required to maintain Boston Properties, Inc.’s REIT qualification under the Internal Revenue Code of 1986, as amended.

We believe that these needs will be satisfied using cash on hand and cash flows generated by operations and provided by financing activities, as well as cash generated from asset sales. Base rental revenue, recovery income from tenants, other income from operations, available cash balances, draws on our Unsecured Line of Credit and refinancing of maturing indebtedness are our principal sources of capital used to pay operating expenses, debt service, recurring capital expenditures and the minimum distribution required to maintain Boston Properties, Inc.’s REIT qualification. We seek to increase income from our existing properties by maintaining quality standards for our properties that promote high occupancy rates and maximize rental rates while reducing tenant turnover and controlling operating expenses. Our sources of revenue also include third-party fees generated by our office real estate management, leasing, development and construction businesses. Consequently, we believe our revenue, together with proceeds from financing activities, will continue to provide the necessary funds for our short-term liquidity needs. However, material changes in these factors may adversely affect our net cash flows. Such changes, in turn, would adversely affect our ability to fund distributions, debt service payments and tenant improvements. In addition, a material adverse change in our cash provided by operations may affect the financial covenants under our unsecured line of credit and unsecured senior notes.

Our principal liquidity needs for periods beyond twelve months are for the costs of developments, property acquisitions, scheduled debt maturities, major renovations, expansions and other non-recurring capital improvements. We expect to satisfy these needs during the next twelve months and beyond using one or more of the following:

•

construction loans;

•

long-term secured and unsecured indebtedness;

•

income from operations;

•

income from joint ventures;

•

sales of real estate;

•

issuances of our equity securities and/or additional preferred or common units of partnership interests; and

•

our unsecured revolving line of credit or other short-term bridge facilities.

We draw on multiple financing sources to fund our long-term capital needs. On July 19, 2005, we refinanced our debt at 599 Lexington Avenue totaling $225.0 million through a secured draw from our

BOSTON PROPERTIES LIMITED PARTNERSHIP

Unsecured Line of Credit. Our Unsecured Line of Credit is utilized primarily as a bridge facility to fund acquisition opportunities and to meet short-term development and working capital needs. We generally fund our development projects with construction loans that we may partially guarantee until project completion or lease-up thresholds are achieved.

Cash Flow Summary

Cash and cash equivalents were $507.2 million and $227.7 million at June 30, 2005 and June 30, 2004, respectively, representing an increase of $279.5 million. The following represents increases and decreases in cash flows for the six months ended June 30, 2005 versus June 30, 2004:


	Six months ended June 30,
	2005			2004			Increase (Decrease)
	(in thousands)
Net cash provided by operating activities	$	204,976		$	210,586		$	(5,610	)
Net cash provided by (used in) investing activities	$	292,750		$	(67,103	)	$	359,853
Net cash provided by (used in) financing activities	$	(229,888	)	$	61,529		$	(291,417	)

Our principal source of cash flow is related to the operation of our office properties. In addition, we have recycled capital through the sale of some of our properties and raised proceeds from secured and unsecured borrowings. Boston Properties, Inc. issued 5,700,000 shares of its common stock in a public offering in March 2004 and contributed the net proceeds of $291.1 million to us in exchange for an equivalent number of common units. The average term of our tenant leases is approximately 7.5 years as of June 30, 2005 calculated on a weighted average, based on net rentable square feet with occupancy rates historically in the range of 92% to 98%. Our properties provide a relatively consistent stream of cash flow that provides us with resources to pay operating expenses, debt service and fund quarterly distribution payment requirements.

Cash is used in investing activities to fund acquisitions, development and recurring and nonrecurring capital expenditures. We selectively invest in new projects that enable us to take advantage of our development, leasing, financing and property management skills and invest in existing buildings that meet our investment criteria. Cash provided by investing activities for the six months ended June 30, 2005 consisted of the following:


	(in thousands)
Proceeds from the sales of real estate	$	472,647
The cash provided by investing is offset by:
Acquisitions/additions to real estate		(145,021	)
Investments in marketable securities		(25,000	)
Recurring capital expenditures		(7,656	)
Planned non-recurring capital expenditures associated with acquisition properties		(1,199	)
Hotel improvements, equipment upgrades and replacements		(698	)
Net investments in unconsolidated joint ventures		(323	)

Net cash provided by investing activities	$	292,750

Cash used in financing activities for the three months ended June 30, 2005 totaled approximately $229.9 million. This consisted of payments of distributions to unitholders as well as the repayment of mortgage notes payable associated with the sales of Riverfront Plaza and 100 East Pratt Street. These payments were offset by proceeds received from mortgage notes payable associated with the refinancing of Times Square Tower as well as the parcel of land at the Prudential Center which has been accounted for as a financing transaction. We expect to fund approximately $350 million in connection with the payment of a $2.50 per OP Unit special cash distribution which Boston Properties, Inc. declared in July 2005. Future debt payments are discussed below under the heading “Capitalization.”

BOSTON PROPERTIES LIMITED PARTNERSHIP

Capitalization

At June 30, 2005, our total consolidated debt was approximately $4.9 billion. The weighted-average annual interest rate on our consolidated indebtedness was 6.36% and the weighted-average maturity was approximately 5.3 years.

Debt to total market capitalization ratio, defined as total consolidated debt as a percentage of the market value of our outstanding equity securities plus our total consolidated debt, is a measure of leverage commonly used by analysts in the REIT sector. Our total market capitalization was approximately $14.6 billion at June 30, 2005. Total market capitalization was calculated using Boston Properties, Inc.’s June 30, 2005 closing stock price of $70.00 per common share and the following: (1) 111,403,373 outstanding common units of BPLP held by Boston Properties, Inc., (2) 21,247,927 outstanding OP Units of BPLP held by persons other than Boston Properties, Inc., (3) an aggregate of 5,357,399 OP Units issuable upon conversion of all outstanding Series Two Preferred Units, (4) an aggregate of 380,821 OP Units issuable upon conversion of all outstanding LTIP Units, and (5) our consolidated debt totaling approximately $4.9 billion. Our total consolidated debt at June 30, 2005 represented approximately 33.59% of our total market capitalization. This percentage will fluctuate with changes in the value of our common units (and therefore with changes in the value of Boston Properties, Inc.’s common stock) and does not necessarily reflect our capacity to incur additional debt to finance our activities or our ability to manage our existing debt obligations. However, for a company like ours, whose assets are primarily income-producing real estate, the debt to total market capitalization ratio may provide investors with an alternate indication of leverage, so long as it is evaluated along with other financial ratios and the various components of our outstanding indebtedness.

Debt Financing

As of June 30, 2005, we had approximately $4.9 billion of outstanding indebtedness, representing 33.59% of our total market capitalization as calculated above consisting of (1) $1.47 billion in publicly traded unsecured debt having a weighted average interest rate of 5.95% and maturities in 2013 and 2015 and (2) $3.43 billion of property-specific debt. We had no outstanding borrowings under our unsecured line of credit as of June 30, 2005. The table below summarizes our mortgage notes payable, our senior unsecured notes and our Unsecured Line of Credit at June 30, 2005 and 2004:


	June 30,
	2005			2004
	(dollars in thousands)
DEBT SUMMARY:
Balance
Fixed rate mortgages	$	2,905,753		$	3,079,477
Variable rate mortgages		522,139			444,725
Senior unsecured notes		1,470,865			1,470,501
Unsecured Line of Credit		—			—

Total	$	4,898,757		$	4,994,703

Percent of total debt:
Fixed rate		89.34	%		91.1	%
Variable rate		10.66	%		8.9	%

Total		100.0	%		100.0	%

Weighted average interest rate at end of period:
Fixed rate		6.65	%		6.68	%
Variable rate		3.85	%		2.28	%

Total		6.36	%		6.28	%

The variable rate debt shown above bears interest based on various spreads over the London Interbank Offered Rate or Eurodollar rates.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Unsecured Line of Credit

On May 19, 2005, we modified our $605.0 million Unsecured Line of Credit by extending the maturity date from January 17, 2006 to October 30, 2007, with a provision for a one-year extension at our option, subject to certain conditions and by reducing the per annum variable interest rate on outstanding balances from Eurodollar plus 0.70% to Eurodollar plus 0.65% In addition a facility fee equal to 15 basis point per annum is payable in quarterly installments. The interest rate and facility fee are subject to adjustment in the event of a change in Boston Properties Limited Partnership’s senior unsecured debt ratings. The Unsecured Line of Credit contains a competitive bid option that allows banks that are part of the lender consortium to bid to make loan advances to us at a reduced Eurodollar rate. We utilize the Unsecured Line of Credit principally to fund development of properties, land and property acquisitions, to refinance outstanding indebtedness and for working capital purposes. Our Unsecured Line of Credit is a recourse obligation of Boston Properties Limited Partnership.

Our ability to borrow under our Unsecured Line of Credit is subject to our compliance with a number of customary financial and other covenants on an ongoing basis, including:

•

a leverage ratio not to exceed 60%, however for a single period of not more than five consecutive quarters the leverage ratio can exceed 60% (but may not exceed 65%);

•

a secured debt leverage ratio not to exceed 55%;

•

a fixed charge coverage ratio of at least 1.40;

•

an unsecured leverage ratio not to exceed 60%;

•

a minimum net worth requirement;

•

an unsecured interest coverage ratio of at least 1.75 to 1.0; and

•

restrictions on permitted investments, development, partially owned entities, business outside of commercial real estate and commercial non-office properties

We believe we are in compliance with the financial and other covenants listed above.

At June 30, 2005, we had letters of credit totaling $8.1 million outstanding under our Unsecured Line of Credit and no outstanding borrowings under our Unsecured Line of Credit. We had the ability to borrow an additional $596.9 million under our Unsecured Line of Credit. On July 19, 2005, we repaid $225 million of mortgage indebtedness at 599 Lexington Avenue through a secured draw on our Unsecured Line of Credit. As of August 5, 2005 we have $225 million outstanding under our Unsecured Line of Credit.

Unsecured Senior Notes

The following summarizes the unsecured senior notes outstanding as of June 30, 2005 (dollars in thousands):


	Coupon/ Stated Rate		Effective Rate (1)		Principal Amount			Maturity Date (2)
10 Year Unsecured Senior Notes	6.250	%	6.296	%	$	750,000		January 15, 2013
10 Year Unsecured Senior Notes	6.250	%	6.280	%		175,000		January 15, 2013
12 Year Unsecured Senior Notes	5.625	%	5.636	%		300,000		April 15, 2015
12 Year Unsecured Senior Notes	5.000	%	5.075	%		250,000		June 1, 2015

Total principal						1,475,000
Net discount						(4,135	)

Total					$	1,470,865

BOSTON PROPERTIES LIMITED PARTNERSHIP

(1)	Yield on issuance date including the effects of discounts on the notes.

(2)	No principal amounts are due prior to maturity.

Our unsecured senior notes are redeemable at our option, in whole or in part, at a redemption price equal to the greater of (i) 100% of their principal amount or (ii) the sum of the present value of the remaining scheduled payments of principal and interest discounted at a rate equal to the yield on U.S. Treasury securities with a comparable maturity plus 35 basis points (the $250 million 12 Year Unsecured Senior Notes that mature on June 1, 2015 are calculated at the U.S. Treasury yield plus 25 basis points), in each case plus accrued and unpaid interest to the redemption date. The indenture under which our senior unsecured notes were issued contains restrictions on incurring debt and using our assets as security in other financing transactions and other customary financial and other covenants, including (1) a leverage ratio not to exceed 60%, (2) a secured debt leverage ratio not to exceed 50%, (3) an interest coverage ratio of 1.5, and (4) unencumbered asset value to be no less than 150% of our unsecured debt. As of June 30, 2005 we were in compliance with each of these financial restrictions and requirements.

Investment grade ratings on our senior unsecured notes are as follows:


Rating Organization		Rating
Moody’s		Baa2 (stable)
Standard & Poor’s		BBB (stable)
FitchRatings		BBB (stable)

The security rating is not a recommendation to buy, sell or hold securities, as it may be subject to revision or withdrawal at any time by the rating organization. Each rating should be evaluated independently of any other rating.

BOSTON PROPERTIES LIMITED PARTNERSHIP

Mortgage Notes Payable

The following represents the outstanding principal balances due under the first mortgages at June 30, 2005:


Properties	Interest Rate	Principal Amount			Maturity Date
		(in thousands)
Citigroup Center	7.19%	$	501,458		May 11, 2011
Times Square Tower	3.78%		475,000	(1)	July 9, 2008
Embarcadero Center One and Two	6.70%		292,898		December 10, 2008
Prudential Center	6.72%		273,055		July 1, 2008
280 Park Avenue	7.64%		257,773		February 1, 2011
599 Lexington Avenue	7.00%		225,000	(2)	July 19, 2005
Embarcadero Center Four	6.79%		140,036		February 1, 2008
Embarcadero Center Three	6.40%		136,670		January 1, 2007
Democracy Center	7.05%		99,477		April 1, 2009
Embarcadero Center West Tower	6.50%		91,253		January 1, 2006
601 and 651 Gateway Boulevard	3.50%		84,260	(3)	December 31, 2005
One Freedom Square	5.33%		80,974	(4)	June 30, 2012
New Dominion Tech Park, Bldg. Two	5.55%		63,000	(5)	September 30, 2014
140 Kendrick Street	5.21%		60,554	(6)	July 1, 2013
202, 206 & 214 Carnegie Center	8.13%		60,208		October 1, 2010
1330 Connecticut Avenue	4.65%		58,411	(7)	February 26, 2011
New Dominion Tech. Park, Bldg. One	7.69%		57,308		January 15, 2021
Reservoir Place	5.82%		54,026	(8)	July 1, 2009
Capital Gallery	8.24%		51,429		August 15, 2006
Cambridge Center Seven	4.53%		44,716	(9)	April 14,2007
504, 506 & 508 Carnegie Center	7.39%		44,024		January 1, 2008
10 and 20 Burlington Mall Road	7.25%		37,553	(10)	October 1, 2011
Ten Cambridge Center	8.27%		33,265		May 1, 2010
Sumner Square	7.35%		28,464		September 1, 2013
1301 New York Avenue	7.14%		27,313	(11)	August 15, 2009
Eight Cambridge Center	7.73%		26,144		July 15, 2010
510 Carnegie Center	7.39%		25,257		January 1, 2008
University Place	6.94%		22,392		August 1, 2021
Reston Corporate Center	6.56%		22,297		May 1, 2008
Bedford Business Park	8.50%		18,950		December 10, 2008
191 Spring Street	8.50%		18,617		September 1, 2006
101 Carnegie Center	7.66%		6,829		April 1, 2006
Montvale Center	8.59%		6,858		December 1, 2006
Capital Gallery Redevelopment	4.87%		2,423	(12)	February 15, 2008

Total		$	3,427,892

(1)

On June 21, 2005, we refinanced the construction loan. The new mortgage loan totaling $475.0 million bears interest at a variable rate equal to LIBOR plus 0.50% per annum and matures on July 9, 2008. The mortgage loan requires interest only payments with a balloon payment due at maturity. The new mortgage loan includes provisions for two one-year extensions at our option. We also entered into an agreement to cap the interest rate at 10.5% per annum.

(2)	On July 19, 2005, we repaid the mortgage loan through a secured draw on our Unsecured Line of Credit.

(3)

On May 12, 2005, we modified the mortgage loan of $83.8 million to mature on December 31, 2005. We will continue to require monthly payments equal to the net cash flow from the property, which will be allocated first to interest based on a rate of 3.50% per annum with the remainder applied to principal through the end of the term, with a balloon payment due at maturity. We have guaranteed the repayment of this mortgage loan.

BOSTON PROPERTIES LIMITED PARTNERSHIP

(4)	In accordance with EITF 98-1, the principal amount and interest rates shown were adjusted upon acquisition of the property to reflect the fair value of the note. The stated principal balance at June 30, 2005 was $73.6 million and the stated interest rate was 7.75%.

(5)	The mortgage loan requires interest only payments with a balloon payment due at maturity.

(6)	In accordance with EITF 98-1, the principal amount and interest rates shown were adjusted upon acquisition of the property to reflect the fair value of the note. The stated principal balance at June 30, 2005 was $54.7 million and the stated interest rate was 7.51%.

(7)	In accordance with EITF 98-1, the principal amount and interest rates shown were adjusted upon acquisition of the property to reflect the fair value of the note. The stated principal balance at June 30, 2005 was $51.3 million and the stated interest rate was 7.58%.

(8)	In accordance with EITF 98-1, the principal amount and interest rates shown were adjusted upon acquisition of the property to reflect the fair value of the note. The stated principal balance at June 30, 2005 was $51.9 million and the stated interest rate was 7.0%.

(9)	The mortgage financing bears interest at a variable rate equal to LIBOR plus 1.25% per annum and requires interest only payments with a balloon payment due at maturity.

(10)	Includes outstanding indebtedness secured by 91 Hartwell Avenue.

(11)	Includes outstanding principal in the amounts of $18.8 million, $5.7 million and $2.8 million which bear interest at fixed rates of 6.70%, 8.54% and 6.75%, respectively.

(12)	The mortgage financing bears interest at a variable rate equal to LIBOR plus 1.65% per annum and requires interest only payments with a balloon payment due at maturity.

Off Balance Sheet Arrangements—Joint Venture Indebtedness

As of June 30, 2005, we had investments in eight unconsolidated joint ventures, of which six have mortgage indebtedness, with equity ownership ranging from 23-51%. We do not have control of these partnerships nor are we the primary beneficiary for variable interest entities and, therefore, we account for them using the equity method of accounting. See also Note 4 to the consolidated financial statements. At June 30, 2005, our share of the debt related to these investments was approximately $200.7 million. The table below summarizes our share of the outstanding debt (based on our respective ownership interests) in these joint venture properties at June 30, 2005.


Properties	Interest Rate		Principal Amount		Maturity Date
			(in thousands)
Metropolitan Square (51%)	8.23	%	$	67,952	May 1, 2010
Market Square North (50%)	7.70	%		46,529	December 19, 2010
901 New York Avenue (25%)	5.19	%		42,500	January 1, 2015
265 Franklin Street (35%) (1)	4.23	%		19,250	September 30, 2007
Worldgate Plaza (25%) (2)	4.04	%		14,250	October 1, 2007
Wisconsin Place (23.89%) (3)	—			10,236	(3)

Total	6.60	%	$	200,717

(1)	The mortgage financing bears interest at a variable rate equal to LIBOR plus 1.10% per annum and requires interest only payments with a balloon payment due at maturity.

(2)

This property is owned by the Value Added Fund. The mortgage financing bears interest at a variable rate equal to LIBOR plus 0.89% per annum and matures in October 2007, with two one-year extension options. The mortgage debt requires interest only payments with a balloon payment due at maturity. In addition, the Value-Added Fund entered into an agreement to cap the interest rate at 9.5% for a nominal fee.

(3)

In accordance with EITF 98-1, the principal amount on $5.6 million of debt was adjusted to reflect the fair value of the note ($5.2 million) using an effective interest rate of 4.38% per annum. This note is non-interest bearing and matures in January 2008. The weighted average rates exclude the impact of this note. We have

BOSTON PROPERTIES LIMITED PARTNERSHIP

agreed, together with the other third-party joint venture partners to guarantee the seller financing on behalf of the land and infrastructure entity.

In addition, the venture obtained financing for approximately $20.9 million, of which our share is $5.0 million at a variable rate equal to LIBOR plus 1.50% per annum and matures March 2009. The interest rate as of June 30, 2005 was 4.7%. The mortgage debt requires interest only payments with a balloon payment due at maturity. We have guaranteed approximately $4.6 million of the total construction loan amount on behalf of the Land and Infrastructure Entity.

State and Local Tax Matters

Because Boston Properties, Inc. is organized and qualifies as a REIT, it is generally not subject to federal income taxes, but subject to certain state and local taxes. In the normal course of business, certain entities through which we own real estate either have undergone, or are currently undergoing, tax audits or other inquiries. Although we believe that we have substantial arguments in favor of our positions in the ongoing audits, in some instances there is no controlling precedent or interpretive guidance on the specific point at issue. Collectively, tax deficiency notices received to date from the jurisdictions conducting the ongoing audits have not been material. However, there can be no assurance that future audits will not occur with increased frequency or that the ultimate result of such audits will not have a material adverse effect on our results of operations.

Insurance

We carry insurance coverage on our properties of types and in amounts and with deductibles that we believe are in line with coverage customarily obtained by owners of similar properties. In response to the uncertainty in the insurance market following the terrorist attacks of September 11, 2001, the Federal Terrorism Risk Insurance Act, or TRIA, was enacted in November 2002 to require regulated insurers to make available coverage for certified acts of terrorism (as defined by the statute) through December 31, 2004, which date was extended to December 31, 2005 by the United States Department of Treasury on June 18, 2004. TRIA expires on December 31, 2005, and we cannot currently anticipate whether it will be extended. Effective as of April 15, 2005, our property insurance program per occurrence limits were increased from $890 million to $1 billion, including coverage for both “certified” and “non-certified” acts of terrorism as defined by TRIA. We also carry nuclear, biological and chemical terrorism insurance coverage (“NBC Coverage”) for “certified” acts of terrorism as defined by TRIA, which is provided by IXP, Inc. as a direct insurer. Effective as of April 1, 2005, we extended the NBC Coverage to March 1, 2006 and the per occurrence limit for the NBC Coverage was increased from $640 million to $890 million. Effective as of May 2, 2005, this limit for NBC Coverage was increased to $1 billion. Under TRIA, the NBC Coverage is backstopped by the Federal Government after the payment of the required deductible and 10% coinsurance. In the event TRIA is not extended beyond December 31, 2005, (1) the NBC Coverage provided by IXP will terminate, and (2) a portion of our coverage for what would have constituted “certified” and “non-certified” acts of terrorism (other than NBC Coverage) had TRIA not expired will terminate and we will have the right to replace a portion of such terminated coverage. In the event TRIA is extended on terms which could expose IXP to a material increase in risk, we may elect to terminate the NBC coverage provided by IXP. We intend to continue to monitor the scope, nature and cost of available terrorism insurance and maintain insurance in amounts and on terms that are commercially reasonable.

We also currently carry earthquake insurance on our properties located in areas known to be subject to earthquakes in an amount and subject to deductibles and self-insurance that we believe are commercially reasonable. Specifically, we currently carry earthquake insurance which covers our San Francisco portfolio with a $120 million per occurrence limit and a $120 million aggregate limit, $20 million of which is provided by IXP, Inc., as a direct insurer. The amount of our earthquake insurance coverage may not be sufficient to cover losses from earthquakes. As a result of increased costs of coverage and limited availability, the amount of third-party

BOSTON PROPERTIES LIMITED PARTNERSHIP

earthquake insurance that we may be able to purchase on commercially reasonable terms may be reduced. In addition, we may discontinue earthquake insurance on some or all of our properties in the future if the premiums exceed our estimation of the value of the coverage.

In January 2002, we formed a wholly-owned taxable REIT subsidiary, IXP, Inc., or IXP, to act as a captive insurance company and be one of the elements of our overall insurance program. IXP acts as a direct insurer with respect to a portion of our earthquake insurance coverage for our Greater San Francisco properties and our NBC Coverage for “certified acts of terrorism” under TRIA. Insofar as we own IXP, we are responsible for our liquidity and capital resources, and the accounts of IXP are part of our consolidated financial statements. If we experience a loss and IXP is required to pay under our insurance policy, we would ultimately record the loss to the extent of IXP’s required payment. Therefore, insurance coverage provided by IXP should not be considered as the equivalent of third-party insurance, but rather as a modified form of self-insurance.

We continue to monitor the state of the insurance market in general, and the scope and costs of coverage for acts of terrorism in particular, but we cannot anticipate what coverage will be available on commercially reasonable terms in future policy years. There are other types of losses, such as from wars or the presence of mold at our properties, for which we cannot obtain insurance at all or at a reasonable cost. With respect to such losses and losses from acts of terrorism, earthquakes or other catastrophic events, if we experience a loss that is uninsured or that exceeds policy limits, we could lose the capital invested in the damaged properties, as well as the anticipated future revenues from those properties. Depending on the specific circumstances of each affected property, it is possible that we could be liable for mortgage indebtedness or other obligations related to the property. Any such loss could materially and adversely affect our business and financial condition and results of operations.

Funds from Operations

Pursuant to the revised definition of Funds from Operations adopted by the Board of Governors of the National Association of Real Estate Investment Trusts (“NAREIT”), we calculate Funds from Operations, or “FFO,” by adjusting net income (loss) (computed in accordance with GAAP, including non-recurring items) for gains (or losses) from sales of properties, real estate related depreciation and amortization, and after adjustment for unconsolidated partnerships and joint ventures. FFO is a non-GAAP financial measure. The use of FFO, combined with the required primary GAAP presentations, has been fundamentally beneficial in improving the understanding of operating results of REITs among the investing public and making comparisons of REIT operating results more meaningful. Management generally considers FFO to be a useful measure for reviewing our comparative operating and financial performance because, by excluding gains and losses related to sales of previously depreciated operating real estate assets and excluding real estate asset depreciation and amortization (which can vary among owners of identical assets in similar condition based on historical cost accounting and useful life estimates), FFO can help one compare the operating performance of a company’s real estate between periods or as compared to different companies. Our computation of FFO may not be comparable to FFO reported by other REITs or real estate companies that do not define the term in accordance with the current NAREIT definition or that interpret the current NAREIT definition differently.

In addition to presenting FFO in accordance with the NAREIT definition, we also disclose FFO after a specific and defined supplemental adjustment to exclude losses from early extinguishments of debt associated with the sales of real estate. The adjustment to exclude losses from early extinguishments of debt results when the sale of real estate encumbered by debt requires us to pay the extinguishment costs prior to the debt’s stated maturity and to write-off unamortized loan costs at the date of the extinguishment. Such costs are excluded from the gains on sales of real estate reported in accordance with GAAP. However, we view the losses from early extinguishments of debt associated with the sales of real estate as an incremental cost of the sale transactions because we extinguished the debt in connection with the consummation of the sale transactions and we had no

BOSTON PROPERTIES LIMITED PARTNERSHIP

intent to extinguish the debt absent such transactions. We believe that this supplemental adjustment more appropriately reflects the results of our operations exclusive of the impact of our sale transactions.

Although our FFO as adjusted clearly differs from NAREIT’s definition of FFO, and may not be comparable to that of other REITs and real estate companies, we believe it provides a meaningful supplemental measure of our operating performance because we believe that, by excluding the effects of the losses from early extinguishments of debt associated with the sales of real estate, management and investors are presented with an indicator of our operating performance that more closely achieves the objectives of the real estate industry in presenting FFO.

Neither FFO nor FFO as adjusted should be considered as an alternative to net income (determined in accordance with GAAP) as an indication of our performance. Neither FFO nor FFO as adjusted represent cash generated from operating activities determined in accordance with GAAP and is not a measure of liquidity or an indicator of our ability to make cash distributions. We believe that to further understand our performance, FFO and FFO as adjusted should be compared with our reported net income and considered in addition to cash flows in accordance with GAAP, as presented in our consolidated financial statements.

The following table presents a reconciliation of net income available to common unitholders to FFO and FFO as adjusted for the three months ended June 30, 2005 and 2004:


	Three Months Ended June 30,
	2005		2004
	(in thousands)
Net income available to common unitholders	$	199,934	$	104,869
Add:
Preferred distributions and allocation of undistributed earnings		8,213		5,211
Less:
Minority interest in property partnerships		1,472		1,292
Income from unconsolidated joint ventures		847		879
Gains on sales of real estate		126,978		1,658
Income from discontinued operations		—		856
Gains on sales of real estate from discontinued operations		10,671		23,923

Income before minority interests in property partnerships, income from unconsolidated joint ventures, preferred distributions, gains on sales of real estate and land held for development and discontinued operations		68,179		81,472
Add:
Real estate depreciation and amortization (1)		68,517		61,494
Income from discontinued operations		—		910
Income from unconsolidated joint ventures		847		879
Less:
Minority interests in property partnerships’ share of Funds from Operations		106		158
Preferred distributions		3,340		3,813

Funds from Operations	$	134,097	$	140,784
Add:
Losses from early extinguishments of debt associated with the sales of real estate		11,041		—

Funds from Operations available to common unitholders after a supplemental adjustment to exclude losses from early extinguishments of debt associated with the sales of real estate	$	145,138	$	140,784

Weighted average units outstanding—basic		132,522		129,116

BOSTON PROPERTIES LIMITED PARTNERSHIP

(1)

Real estate depreciation and amortization consists of depreciation and amortization from the Consolidated Statements of Operations of $66,489 and $59,941, our share of unconsolidated joint venture real estate depreciation and amortization of $2,394 and $1,683 and depreciation and amortization from discontinued operations of $0 and $487, less corporate related depreciation and amortization of $366 and $617 for the three months ended June 30, 2005 and 2004, respectively.

Reconciliation to Diluted Funds from Operations:


	Three Months Ended June 30, 2005			Three Months Ended June 30, 2004
	Income (Numerator)		Units (Denominator)	Income (Numerator)		Units (Denominator)
	(in thousands)			(in thousands)
Basic FFO after a supplemental adjustment to exclude losses from early extinguishments of debt associated with the sales of real estate	$	145,138	132,522	$	140,784	129,116
Effect of Dilutive Securities
Convertible Preferred Units		3,340	5,357		3,813	6,192
Stock Options and other		—	2,339		—	1,800

Diluted FFO after a supplemental adjustment to exclude losses from early extinguishments of debt associated with the sales of real estate	$	148,478	140,218	$	144,597	137,108

Contractual Obligations

We have various standing or renewable service contracts with vendors related to our property management. In addition, we have certain other utility contracts we enter into in the ordinary course of business which may extend beyond one year, which vary based on usage. These contracts include terms that provide for cancellation with insignificant or no cancellation penalties. Contract terms are generally one year or less.

Newly Issued Accounting Standards

In December 2004, the FASB issued SFAS No. 123R, “Share-Based Payment” (“SFAS No. 123R”). SFAS No. 123R replaces SFAS No. 123, “Accounting for Stock Issued to Employees.” SFAS No. 123R requires the compensation cost relating to share-based payment transactions be recognized in financial statements and be measured based on the fair value of the equity instrument issued. SFAS No. 123R is effective as of the first annual reporting period beginning after June 15, 2005. We adopted the fair value recognition provisions of SFAS No. 123R prospectively to all employee awards granted, modified, or settled on or after January 1, 2005, and applied the modified prospective application transition provisions, upon adoption. All of our remaining unvested stock options vested on January 17, 2005. As a result, our adoption of SFAS No. 123R did not have a material impact on our cash flows, results of operations, financial position, or liquidity.

In May 2005, the FASB issued SFAS No. 154, “Accounting Changes and Error Corrections—A Replacement of APB Opinion No. 20 and SFAS Statement No. 3” (“SFAS No. 154”). SFAS No. 154 changes the requirements for the accounting and reporting of a change in accounting principle by requiring retrospective application to prior periods’ financial statements of the change in accounting principle, unless it is impracticable to do so. SFAS No. 154 also requires that a change in depreciation or amortization for long-lived, non-financial assets be accounted for as a change in accounting estimate effected by a change in accounting principle. SFAS No. 154 is effective for accounting changes and corrections of errors made in fiscal years beginning after December 15, 2005. We do not expect the adoption of SFAS No. 154 to have a material impact on our cash flows, results of operations, financial position, or liquidity.

BOSTON PROPERTIES LIMITED PARTNERSHIP

In June 2005, the FASB ratified the consensus reached by the Emerging Issues Task Force (“EITF”) regarding EITF 04-5, “Investor’s Accounting for an Investment in a Limited Partnership When the Investor is the Sole General Partner and the Limited Partners Have Certain Rights” (“EITF 04-5”). The conclusion provides a framework for addressing the question of when a sole general partner, as defined in EITF 04-5, should consolidate a limited partnership. Pursuant to EITF 04-5, the general partner of a limited partnership should consolidate a limited partnership unless the limited partners have either (a) the substantive ability to dissolve the limited partnership or otherwise remove the general partners without cause, or (b) substantive participating rights. In addition, EITF 04-5 concluded that the guidance should be expanded to include all limited partnerships, including those with multiple general partners. EITF 04-5 is effective for reporting periods in fiscal years beginning after December 15, 2005. We are currently evaluating and assessing the impact of this pronouncement.

ITEM 3—Quantitative and Qualitative Disclosures about Market Risk

Approximately $4.4 billion of our borrowings bear interest at fixed rates, and therefore the fair value of these instruments is affected by changes in the market interest rates. The following table presents our aggregate fixed rate debt obligations with corresponding weighted-average interest rates sorted by maturity date and our aggregate variable rate debt obligations sorted by maturity date. The interest rate on the variable rate debt as of June 30, 2005 ranged from LIBOR/Eurodollar plus 0.50% to LIBOR/Eurodollar plus 1.65%.


	2005			2006			2007			2008			2009			2010+			Total			Fair Value
(dollars in thousands)	Secured debt
Fixed Rate	$	334,329		$	220,821		$	181,377		$	801,323		$	188,278		$	1,179,625		$	2,905,753		$	3,122,303
Average Interest Rate		6.13	%		7.30	%		6.61	%		6.84	%		7.11	%		7.36	%		7.01	%
Variable Rate		—			—		$	44,716		$	477,423			—			—		$	522,139		$	522,139

	Unsecured debt
Fixed Rate		—			—			—			—			—		$	1,470,865		$	1,470,865		$	1,557,146
Average Interest Rate		—			—			—			—			—			5.95	%		5.95	%
Variable Rate		—			—			—			—			—			—			—

Total Debt	$	334,329		$	220,821		$	226,093		$	1,278,746		$	188,278		$	2,650,490		$	4,898,757		$	5,201,588

We had a derivative contract in a notional amount of $150 million. Prior to the modification described below, the derivative contract provided for a fixed interest rate of 6.35% when LIBOR is less than 5.80%, 6.70% when LIBOR is between 6.70% and 7.45%, and 7.50% when LIBOR is between 7.51% and 9.00% through February 2005. In August 2003, we modified the contract to provide for the counter party to pay us LIBOR and we are required to pay the counter party LIBOR in arrears plus 4.55% per annum on the notional amount of $150 million. The derivative contract expired in February 2005.

On August 3, 2005, we entered into two forward-starting interest rate swap contracts at fixed rates of 4.877% and 4.882% on notional amounts of $50.0 million. The swaps go into effect in February 2007 and expire in February 2017. We obtained the swaps to lock in the ten-year LIBOR swap rate in contemplation of obtaining long-term fixed rate financing in late 2006 or early 2007. We expect to cash settle the interest rate swaps in cash at the time we lock the rate on long-term fixed-rate financing. If the 10-year LIBOR swap rate is below 4.877% or 4.882%, respectively, at the time we settle each swap, we would be required to make a payment to the swap counter-parties; if the 10-year LIBOR swap rate is above 4.877% or 4.882%, respectively, at the time we cash settle each swap, we would receive a payment from the swap counter-parties. The amount that we either pay or receive will equal the present value of the basis point differential between the applicable fixed strike rate and the 10-year swap rate at the time we settle each swap. We believe that these swaps are highly-effective cash flow hedges under SFAS No. 133, “Accounting for Derivative Instruments and Hedging Activities,” as amended. We intend to consider entering into additional hedging arrangements to minimize our interest rate risk.

BOSTON PROPERTIES LIMITED PARTNERSHIP

At June 30, 2005, our variable rate debt outstanding was approximately $522 million. At June 30, 2005, the average interest rate on variable rate debt was approximately 3.85%. If market interest rates on our variable rate debt had been 100 basis points greater, total interest expense would have increased approximately $1.3 million for the three months ended June 30, 2005.

At June 30, 2004, our variable rate debt outstanding was approximately $445 million. At June 30, 2004 the average interest rate on variable rate debt was approximately 2.28%. If market interest rates on our variable rate debt had been 100 basis points greater, total interest expense would have increased approximately $1.1 million for the three months ended June 30, 2004.

ITEM 4—Controls and Procedures

(a) Evaluation of Disclosure Controls and Procedures. As of the end of the period covered by this report, the management of Boston Properties, Inc., with the participation of its Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer of Boston Properties, Inc. concluded that these disclosure controls and procedures were effective as of the end of the period covered by this report.

(b) Changes in Internal Control Over Financial Reporting. No change in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Securities Exchange Act of 1934) occurred during the second quarter of our fiscal year ended December 31, 2005 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

BOSTON PROPERTIES LIMITED PARTNERSHIP

PART II. OTHER INFORMATION

ITEM 1—Legal Proceedings.

We are subject to legal proceedings and claims that arise in the ordinary course of business. These matters are generally covered by insurance. Management believes that the final outcome of such matters will not have a material adverse effect on our financial position, results of operations or liquidity.

ITEM 2—Unregistered Sales of Equity Securities and Use of Proceeds.

(a) None.

(b) Not applicable.

(c)


Period	(a) Total Number of Partnership Units Purchased(1)	(b) Average Price Paid per Unit		(c) Total Number of Units Purchased as Part of Publicly Announced Plans or Programs	(d) Maximum Number (or Approximate Dollar Value) of Units that May Yet be Purchased
April 1, 2005—April 30, 2005	—		—	N/A	N/A
May 1, 2005—May 31, 2005	425	$	0.25	N/A	N/A
June 1, 2005—June 30, 2005	—		—	N/A	N/A

Total	425	$	0.25	N/A	N/A

(1)

Represents restricted LTIP Units that were repurchased in connection with the resignation of a director. Under the terms of the applicable LTIP Unit vesting agreement, these LTIP Units were repurchased by the Company at a price of $0.25 per unit, which was the amount originally paid by such director for the units.

ITEM 3—Defaults Upon Senior Securities.

None.

ITEM 4—Submission of Matters to a Vote of Security Holders.

None

ITEM 5—Other Information.

(a) None.

(b) None.

BOSTON PROPERTIES LIMITED PARTNERSHIP

ITEM 6—Exhibits

(a) Exhibits


10.1	-	Fourth Amended and Restated Revolving Credit Agreement, dated as of May 19, 2005, among Boston Properties Limited Partnership and the banks identified therein and Bank of America, N.A. as administrative agent, swingline lender and fronting bank, JPMorgan Chase Bank, N.A. as syndication agent, and Commerzbank AG, Keybank National Association and Wells Fargo Bank National Association as documentation agents, with Banc of America Securities LLC and J.P. Morgan Securities, Inc. acting as joint lead arrangers and joint bookrunners. (Incorporated by reference to Exhibit 10.1 of Boston Properties, Inc.’s Current Report on Form 8-K filed with the Securities and Exchange Commission on May 23, 2005.)

12.1	-	Calculation of Ratios of Earnings to Combined Fixed Charges and Preferred Distributions.

31.1	-	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2	-	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1	-	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes Oxley Act of 2002.

32.2	-	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes Oxley Act of 2002.

BOSTON PROPERTIES LIMITED PARTNERSHIP

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


	Boston Properties Limited Partnership
	By: Boston Properties, Inc., its General Partner

August 9, 2005		/s/ DOUGLAS T. LINDE
August 9, 2005		Douglas T. Linde
		Executive Vice President, Chief Financial Officer (duly authorized officer and principal financial officer)

Calculation of Ratios of Earnings

EXHIBIT 12.1

BOSTON PROPERTIES LIMITED PARTNERSHIP

CALCULATION OF RATIOS OF EARNINGS TO

COMBIND FIXED CHARGES AND PREFERRED DISTRIBUTIONS

Boston Properties Limited Partnership’s ratios of earnings to combined fixed charges and preferred distributions for the six months ended June 30, 2005 and the five years ended December 31, 2004 were as follows:


	Six Months Ended June 30, 2005			Year Ended December 31,
	Six Months Ended June 30, 2005			2004			2003			2002			2001			2000
				(dollars in thousands)
Earnings:
Add:
Income before minority interests in property partnerships, income from unconsolidated joint ventures, gains (losses) on sales of real estate and other assets and land held for development, discontinued operations, cumulative effect of a change in accounting principle and preferred distributions	$	141,881		$	309,124		$	295,453		$	271,713		$	239,498		$	204,538
Gains (losses) on sales of real estate and land held for development		128,423			9,822			70,627			233,304			11,238			(313	)
Amortization of interest capitalized		1,647			2,845			2,640			2,526			950			415
Distributions from unconsolidated joint ventures		2,245			6,663			8,412			8,692			2,735			1,848
Combined fixed charges and preferred distributions (see below)		166,658			334,082			342,244			316,835			306,709			275,607
Subtract:
Interest capitalized		(1,559	)		(10,849	)		(19,200	)		(22,510	)		(59,292	)		(37,713	)
Preferred distributions		(7,512	)		(17,063	)		(23,608	)		(31,258	)		(36,026	)		(32,994	)

Total earnings	$	431,783		$	634,624		$	676,568		$	779,302		$	465,812		$	411,388

Combined fixed charges and preferred distributions:
Interest expensed	$	157,587		$	306,170		$	299,436		$	263,067		$	211,391		$	204,900
Interest capitalized		1,559			10,849			19,200			22,510			59,292			37,713
Preferred distributions		7,512			17,063			23,608			31,258			36,026			32,994

Total combined fixed charges and preferred distributions	$	166,658		$	334,082		$	342,244		$	316,835		$	306,709		$	275,607

Ratio of earnings to combined fixed charges and preferred distributions		2.59			1.90			1.98			2.46			1.52			1.49

The ratio of earnings to combined fixed charges and preferred distributions was computed by dividing earnings by combined fixed charges and preferred distributions. Earnings consist of income before minority interests in property partnerships, income from unconsolidated joint ventures, discontinued operations, cumulative effect of a change in accounting principle and preferred distributions, plus amortization of interest capitalized, distributions from unconsolidated joint ventures, and combined fixed charges and preferred distributions, minus interest capitalized and preferred distributions. Combined fixed charges and preferred distributions consist of interest expensed, which includes credit enhancement fees and amortization of loan costs, interest capitalized, and preferred distributions.

Certification of CEO pursuant to Section 302

Exhibit 31.1

CERTIFICATION

I, Edward H. Linde, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Boston Properties Limited Partnership;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 9, 2005

/s/ EDWARD H. LINDE

Edward H. Linde

Chief Executive Officer of Boston Properties, Inc.,

General Partner of Boston Properties Limited Partnership

Certification of CFO pursuant to Section 302

Exhibit 31.2

CERTIFICATION

I, Douglas T. Linde, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Boston Properties Limited Partnership;

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 9, 2005

/s/ DOUGLAS T. LINDE

Douglas T. Linde

Chief Financial Officer of Boston Properties, Inc.,

General Partner of Boston Properties Limited Partnership

Certification of CEO pursuant to Section 906

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned officer of Boston Properties, Inc., the sole general partner of Boston Properties Limited Partnership (the “Company”), hereby certifies to my knowledge that the Company’s quarterly report on Form 10-Q for the period ended June 30, 2005 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended, and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. This certification shall not be deemed “filed” for any purpose, nor shall it be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934 regardless of any general incorporation language in such filing.

Date: August 9, 2005

/s/ EDWARD H. LINDE

Edward H. Linde

Chief Executive Officer of Boston Properties, Inc.,

General Partner of Boston Properties Limited Partnership

Certification of CFO pursuant to Section 906

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Date: August 9, 2005

/s/ DOUGLAS T. LINDE

Douglas T. Linde

Chief Financial Officer of Boston Properties, Inc.,

General Partner of Boston Properties Limited Partnership