Boston Properties, Inc. Announces Fourth Quarter 2006 Results

January 30, 2007
Reports diluted FFO per share of $1.18

Reports diluted EPS of $0.60

BOSTON, Jan. 30 /PRNewswire-FirstCall/ -- Boston Properties, Inc. (NYSE: BXP), a real estate investment trust, reported results today for the fourth quarter ended December 31, 2006.

Results for the quarter ended December 31, 2006

Funds from Operations (FFO) for the quarter ended December 31, 2006 were $141.9 million, or $1.21 per share basic and $1.18 per share diluted. This compares to FFO for the quarter ended December 31, 2005 of $126.7 million, or $1.13 per share basic and $1.09 per share diluted. The weighted average number of basic and diluted shares outstanding totaled 116,895,438 and 121,456,257, respectively, for the quarter ended December 31, 2006 and 112,340,334 and 119,496,904, respectively, for the quarter ended December 31, 2005.

Net income available to common shareholders was $71.7 million for the three months ended December 31, 2006, compared to $154.1 million for the quarter ended December 31, 2005. Net income available to common shareholders per share (EPS) for the quarter ended December 31, 2006 was $0.61 basic and $0.60 on a diluted basis. This compares to EPS for the fourth quarter of 2005 of $1.35 basic and $1.32 on a diluted basis. EPS for the quarter ended December 31, 2006 reflects a reduction of $0.09, on a diluted basis, representing the amount of earnings allocated to the holders of Series Two Preferred Units of limited partnership interest in the Company's Operating Partnership to account for their right to participate on an as-converted basis in the special dividend that was paid on January 30, 2007 to stockholders of record as of the close of business on December 29, 2006. EPS for the quarter ended December 31, 2005 includes $0.71, on a diluted basis, related to (1) gains on sales of real estate of $0.40, (2) discontinued operations of $0.35 and (3) the cumulative effect of a change in accounting principle of ($0.04).

Results for the year ended December 31, 2006

FFO for the year ended December 31, 2006 were $527.7 million, or $4.60 per share basic and $4.47 per share diluted, after a supplemental adjustment to exclude the loss from early extinguishment of debt associated with the sale of real estate. This compares to FFO for the year ended December 31, 2005 of $489.0 million, or $4.39 per share basic and $4.25 per share diluted, after a supplemental adjustment to exclude losses from early extinguishments of debt associated with the sales of real estate. Losses from early extinguishments of debt associated with the sales of real estate totaled $0.23 and $0.08 per share basic and $0.22 and $0.08 per share diluted for the years ended December 31, 2006 and 2005, respectively. The weighted average number of basic and diluted shares outstanding totaled 114,721,339 and 120,706,904, respectively, for the year ended December 31, 2006 and 111,274,188 and 118,722,134, respectively, for the year ended December 31, 2005.

Net income available to common shareholders was $873.6 million for the year ended December 31, 2006, compared to $438.3 million for the year ended December 31, 2005. Net income available to common shareholders per share (EPS) for the year ended December 31, 2006 was $7.62 basic and $7.46 on a diluted basis. This compares to EPS for the year ended December 31, 2005 of $3.94 basic and $3.86 on a diluted basis.

The reported results are unaudited and there can be no assurance that the results will not vary from the final information for the quarter and year ended December 31, 2006. In the opinion of management, all adjustments considered necessary for a fair presentation of these reported results have been made.

As of December 31, 2006, the Company's portfolio consisted of 131 properties comprising approximately 43.4 million square feet, including six properties under construction totaling 1.4 million square feet and two hotels. The overall percentage of leased space for the 123 properties in service as of December 31, 2006 was 94.2%.

Significant events of the fourth quarter include:

  • On October 2, 2006, the Company used available cash to repay the mortgage loan collateralized by its Embarcadero Center Three property located in San Francisco, California totaling approximately $133.4 million. There was no prepayment penalty associated with the repayment. The mortgage loan bore interest at a fixed rate of 6.40% per annum and was scheduled to mature on January 1, 2007.
  • On October 27, 2006, the Company acquired a parcel of land located in Waltham, Massachusetts for a purchase price of approximately $5.6 million.
  • On November 17, 2006, the Company executed a binding agreement for the sale of the long-term leasehold interest in 5 Times Square in New York City and related credits, for approximately $1.28 billion in cash. 5 Times Square is a fully-leased Class A office tower that contains approximately 1,101,779 net rentable square feet. The sale is subject to the satisfaction of customary closing conditions and, although there can be no assurances that the sale will be consummated, it is expected to close during the first quarter of 2007.
  • On November 21, 2006, the Company obtained construction financing totaling $200.0 million collateralized by its South of Market development project located in Reston, Virginia. South of Market is a Class A office project consisting of three buildings aggregating approximately 652,000 net rentable square feet. The construction financing bears interest at a variable rate equal to LIBOR plus 1.25% per annum and matures in November 2009 with two one-year extension options.
  • On November 30, 2006, the Company acquired Four and Five Cambridge Center and the Cambridge Center East Garage located in Cambridge, Massachusetts, at a purchase price of approximately $186.0 million. This property consists of two Class A office properties totaling approximately 436,000 net rentable square feet and structured parking for approximately 840 vehicles totaling approximately 300,000 square feet. The acquisition was financed with available cash. Four and Five Cambridge Center is currently approximately 65% leased with an average rental rate that is below market. The Company projects this property's 2007 Unleveraged FFO Return to be 5.5% and 2007 Unleveraged Cash Return to be 4.8%. Assuming the Company leases substantially all of the currently available space at market rates by the end of 2008 and spends approximately $9.4 million for capital and tenant improvements and leasing commissions, the Company projects this property's 2008 Unleveraged FFO Return to be 7.2% and 2008 Unleveraged Cash Return to be 6.7%. The calculation of these returns and related disclosures are presented on the accompanying table entitled "Projected 2007 and 2008 Returns on Acquisition." There can be no assurance that actual returns will not differ materially from these projections.
  • On December 6, 2006, the Company commenced construction of One Preserve Parkway, a Class A office property totaling approximately 183,000 net rentable square feet located in Rockville, Maryland. The Company expects that the project will be completed with initial occupancy in the second quarter of 2008.
  • On December 18, 2006, the Company announced that its Board of Directors declared a special cash dividend of $5.40 per common share payable on January 30, 2007 to shareholders of record as of the close of business on December 29, 2006. The decision to declare a special dividend was the result of the sales of assets in 2006, including 280 Park Avenue and 265 Franklin Street. The Board of Directors did not make any change in the Company's policy with respect to regular quarterly dividends. The payment of the regular quarterly dividend of $0.68 per share and the special dividend of $5.40 per share will result in a total payment of $6.08 per share payable on January 30, 2007. Holders of common units of limited partnership interest in Boston Properties Limited Partnership, the Company's Operating Partnership, as of the close of business on December 29, 2006 will receive the same total distribution, payable on January 30, 2007. Holders of Series Two Preferred Units of limited partnership interest will participate in the special cash dividend (separately from their regular February 2007 distribution) on an as-converted basis in connection with their regular May 2007 distribution payment as provided in the Operating \ Partnership's partnership agreement.
  • On December 19, 2006, the Company entered into an interest rate lock agreement with a lender for a fixed interest rate of 5.57% per annum on a ten-year mortgage financing totaling $750.0 million to be collateralized by the Company's 599 Lexington Avenue property in New York City. The Company expects to close on the mortgage financing by the end of February 2007, although there can be no assurance that the financing will be consummated on the terms currently contemplated or at all. In conjunction with the interest rate lock agreement, the Company terminated its forward-starting interest rate swap contracts with notional amounts aggregating $500.0 million and received approximately $10.9 million, which amount will reduce the Company's interest expense over the ten-year term of the financing, resulting in an effective interest rate of 5.38% per annum.
  • On December 22, 2006, the Company executed a contract to acquire Kingstowne Towne Center, a mixed-use property located in Alexandria, Virginia, at a purchase price of approximately $134.0 million. This property is comprised of two Class A office properties totaling approximately 307,000 net rentable square feet and a retail/movie theater complex totaling approximately 88,000 net rentable square feet. The acquisition is subject to the satisfaction of customary closing conditions and there can be no assurance that the acquisition will be consummated on the terms currently contemplated or at all.

Transactions completed subsequent to December 31, 2006:

  • On January 5, 2007 and January 18, 2007, the Company acquired adjacent parcels of land located in Springfield, Virginia for a purchase price of approximately $12.0 million and $4.5 million, respectively. The Company also has an agreement to acquire an additional adjacent parcel of land for a purchase price of approximately $25.6 million. The assembled land parcels will support a commercial development of approximately 800,000 net rentable square feet.
  • On January 9, 2007, the Company acquired a parcel of land located in New York City, through a majority-owned venture, for a purchase price of approximately $38.8 million. On January 24, 2007, the Company acquired an adjacent parcel of land, through a majority-owned venture, for a purchase price of approximately $160.0 million. The Company also has agreements to acquire other real estate interests, through the majority-owned venture, for approximately $60.0 million. The acquisitions were financed with a $160.0 million mortgage loan bearing interest at a variable rate equal to LIBOR plus 0.40% per annum and maturing in January 2009. The assembled land parcels will support the development of an approximately 885,000 net rentable square foot Class A office tower.
  • On January 29, 2007, the Company acquired a parcel of land located in Waltham, Massachusetts for a purchase price of approximately $13.9 million.

EPS and FFO per Share Guidance:

The Company's guidance for the first quarter and full year 2007 for EPS (diluted) and FFO per share (diluted) is set forth and reconciled below.


                              First Quarter 2007        Full Year 2007
                             Low      -   High     Low        -      High
    Projected EPS (diluted)$ 5.68     -   $5.69    $7.59      -     $7.69

    Add:
    Projected Company
     Share of Real Estate
     Depreciation and
     Amortization           0.50      -    0.50     2.00      -      2.00

    Less:
    Projected Company
     Share of Gains on
     Sales of Real Estate   5.14      -    5.14     5.14      -      5.14

    Projected FFO per
     Share (diluted)      $ 1.04      -   $1.05    $4.45      -     $4.55

The foregoing estimates reflect management's view of current and future market conditions, including assumptions with respect to rental rates, occupancy levels and earnings impact of the events referenced in this release. The estimates do not include possible future gains or losses or the impact on operating results from possible future property acquisitions, dispositions or financings. EPS estimates may be subject to fluctuations as a result of several factors, including changes in the recognition of depreciation and amortization expense and any gains or losses associated with disposition activity. The Company is not able to assess at this time the potential impact of these factors on projected EPS. By definition, FFO does not include real estate-related depreciation and amortization or gains or losses associated with disposition activities. There can be no assurance that the Company's actual results will not differ materially from the estimates set forth above.

Boston Properties will host a conference call tomorrow, January 31, 2007 at 10:00 AM Eastern Time, open to the general public, to discuss the fourth quarter and full fiscal year 2006 results, the 2007 projections and related assumptions, and other related matters that may be of interest to investors. The number to call for this interactive teleconference is (800) 219-6110 (Domestic) or (303) 262-2190 (International); no passcode required. A replay of the conference call will be available through February 7, 2007, by dialing (800) 405-2236 (Domestic) or (303) 590-3000 (International) and entering the passcode 11080783. There will also be a live audio webcast of the call which may be accessed on the Company's website at www.bostonproperties.com in the Investor Relations section, through www.fulldisclosure.com for individual investors, or through the password-protected event management site, www.streetevents.com, for institutional investors. Shortly after the call a replay of the webcast and a podcast will be available on the Company's website, www.bostonproperties.com, in the Investor Relations section, and archived for up to twelve months following the call.

Additionally, a copy of Boston Properties' fourth quarter 2006 "Supplemental Operating and Financial Data" and this press release are available in the Investor Relations section of the Company's website at www.bostonproperties.com. These materials are also available by contacting Investor Relations at (617) 236-3322 or by written request to:

Investor Relations
Boston Properties, Inc.
111 Huntington Avenue, Suite 300
Boston, MA 02199-7610

Boston Properties is a fully integrated, self-administered and self- managed real estate investment trust that develops, redevelops, acquires, manages, operates and owns a diverse portfolio of Class A office properties and also includes two hotels. The Company is one of the largest owners and developers of Class A office properties in the United States, concentrated in five markets -- Boston, Midtown Manhattan, Washington, D.C., San Francisco and Princeton, N.J.

This press release contains forward-looking statements within the meaning of the Federal securities laws. You can identify these statements by our use of the words "assumes," "believes," "estimates," "expects," "guidance," "intends," "plans," "projects" and similar expressions that do not relate to historical matters. You should exercise caution in interpreting and relying on forward-looking statements because they involve known and unknown risks, uncertainties and other factors which are, in some cases, beyond Boston Properties' control and could materially affect actual results, performance or achievements. These factors include, without limitation, the ability to enter into new leases or renew leases on favorable terms, dependence on tenants' financial condition, the uncertainties of real estate development, acquisition and disposition activity, the ability to effectively integrate acquisitions, the costs and availability of financing, the effects of local economic and market conditions, the effects of acquisitions and dispositions (including the exact amount and timing of any related special dividend and possible impairment charges) on our operating results, the impact of newly adopted accounting principles on the Company's accounting policies and on period-to- period comparisons of financial results, regulatory changes and other risks and uncertainties detailed from time to time in the Company's filings with the Securities and Exchange Commission. Boston Properties does not undertake a duty to update or revise any forward-looking statement whether as a result of new information, future events or otherwise, including its guidance for the first quarter and full fiscal year 2007.

                           Financial tables follow.


                           BOSTON PROPERTIES, INC.
                    CONSOLIDATED STATEMENTS OF OPERATIONS

                                    Three months ended        Year ended
                                       December 31,           December 31,
                                     2006      2005        2006        2005

                                  (in thousands, except for per share amounts)
                                                  (unaudited)
     Revenue
      Rental:
        Base rent                  $278,186  $279,583  $1,104,773  $1,110,212
        Recoveries from tenants      42,868    44,098     181,521     173,254
        Parking and other            15,261    14,051      57,740      55,567
          Total rental revenue      336,315   337,732   1,344,034   1,339,033
      Hotel revenue                  25,126    22,161      76,990      69,277
      Development and management
       services                       5,661     3,714      19,825      17,310
      Interest and other             11,571     2,726      36,737      12,015
          Total revenue             378,673   366,333   1,477,586   1,437,635

     Expenses
      Operating:
        Rental                      107,374   112,284     441,814     438,335
        Hotel                        17,392    16,125      55,538      51,689
      General and administrative     16,198    13,136      59,375      55,471
      Interest                       71,423    74,804     298,260     308,091
      Depreciation and
       amortization                  70,452    66,290     276,759     266,829
      Losses from early
       extinguishments of debt           11       -        32,143      12,896
          Total expenses            282,850   282,639   1,163,889   1,133,311
     Income before minority
      interest in property
      partnership, income from
      unconsolidated joint ventures,
      minority interest in Operating
      Partnership, gains on sales
      of real estate, discontinued
      operations and cumulative
      effect of a change in
      accounting principle           95,823    83,694     313,697     304,324
     Minority interest in property
      partnership                       -       1,366       2,013       6,017
     Income from unconsolidated
      joint ventures                  1,340     1,530      24,507       4,829
     Income before minority
      interest in Operating
      Partnership, gains
      on sales of real estate,
      discontinued operations and
      cumulative effect of a
      change in accounting principle 97,163    86,590     340,217     315,170
     Minority interest in
      Operating Partnership         (26,691)  (16,928)    (72,976)    (74,103)
     Income before gains on sales
      of real estate, discontinued
      operations and cumulative
      effect of a change in
      accounting principle           70,472    69,662     267,241     241,067
     Gains on sales of real
      estate, net of minority
      interest                        1,183    48,542     606,394     151,884
     Income before discontinued
      operations and cumulative
      effect of a change in
      accounting principle           71,655   118,204     873,635     392,951
     Discontinued operations:
      Income from discontinued
       operations, net of minority
       interest                         -         730         -         1,908
      Gains on sales of real
       estate from discontinued
       operations, net of minority
       interest                         -      39,364         -        47,656
     Income before cumulative
      effect of a change in
      accounting principle           71,655   158,298     873,635     442,515
     Cumulative effect of a change
      in accounting principle           -      (4,235)        -        (4,223)
     Net income available to
      common shareholders           $71,655  $154,063    $873,635    $438,292

     Basic earnings per common
      share:
      Income available to common
       shareholders before
       discontinued operations
       and cumulative effect of a
       change in accounting
       principle                      $0.61     $1.03       $7.62       $3.53
      Discontinued operations, net
       of minority interest               -      0.36           -        0.45
      Cumulative effect of a
       change in accounting
       principle, net of minority
       interest                          -      (0.04)          -       (0.04)
      Net income available to
       common shareholders            $0.61     $1.35       $7.62       $3.94

      Weighted average number of
       common shares outstanding    116,895   112,340     114,721     111,274

     Diluted earnings per common
      share:
      Income available to common
       shareholders before
       discontinued operations
       and cumulative effect of a
       change in accounting
       principle                     $0.60     $1.01       $7.46       $3.46
      Discontinued operations, net
       of minority interest             -       0.35         -          0.44
      Cumulative effect of a
       change in accounting
       principle, net of minority
       interest                         -      (0.04)        -         (0.04)
      Net income available to
       common shareholders            $0.60    $1.32       $7.46       $3.86

      Weighted average number of
       common and common
       equivalent shares
       outstanding                  119,190  114,640     117,077     113,559



                           BOSTON PROPERTIES, INC.
                         CONSOLIDATED BALANCE SHEETS



                                                December 31,      December 31,
                                                   2006             2005

                                      (in thousands, except for share amounts)
                                                        (unaudited)
                   ASSETS

    Real estate                                 $8,819,934        $8,724,954
    Real estate held for sale, net                 433,492               -
    Construction in progress                       115,629           177,576
    Land held for future development               183,403           248,645
      Less: accumulated depreciation            (1,392,055)       (1,265,073)
             Total real estate                   8,160,403         7,886,102

    Cash and cash equivalents                      725,788           261,496
    Cash held in escrows                            25,784            25,618
    Tenant and other receivables, net of
     allowance for doubtful accounts of
     $2,682 and $2,519, respectively                57,052            52,668
    Accrued rental income, net of
     allowance of $783 and $2,638,
     respectively                                  327,337           302,356
    Deferred charges, net                          274,079           242,660
    Prepaid expenses and other assets               40,868            41,261
    Investments in unconsolidated joint
     ventures                                       83,711            90,207
        Total assets                            $9,695,022        $8,902,368

    LIABILITIES AND STOCKHOLDERS' EQUITY

    Liabilities:
      Mortgage notes payable                    $2,679,462        $3,297,192
      Unsecured senior notes, net of
       discount                                  1,471,475         1,471,062
      Unsecured exchangeable senior notes          450,000               -
      Unsecured line of credit                         -              58,000
      Accounts payable and accrued expenses        102,934           109,823
      Dividends and distributions payable          857,892           107,643
      Accrued interest payable                      47,441            47,911
      Other liabilities                            239,084           154,123
        Total liabilities                        5,848,288         5,245,754

    Commitments and contingencies                      -                 -
    Minority interests                             623,508           739,268
    Stockholders' equity:
      Excess stock, $.01 par value,
       150,000,000 shares authorized,
       none issued or outstanding                      -                 -
      Preferred stock, $.01 par value,
       50,000,000 shares authorized, none
       issued or outstanding                           -                 -
      Common stock, $.01 par value,
       250,000,000 shares authorized,
       117,582,442 and 112,621,162 shares
       issued and 117,503,542 and 112,542,262
       shares outstanding in 2006 and 2005,
       respectively                                  1,175             1,125
      Additional paid-in capital                 3,119,941         2,745,719
      Earnings in excess of dividends              108,155           182,105
      Treasury common stock, at cost                (2,722)           (2,722)
      Accumulated other comprehensive loss          (3,323)           (8,881)
        Total stockholders' equity               3,223,226         2,917,346
                Total liabilities and
                 stockholders' equity           $9,695,022        $8,902,368



                           BOSTON PROPERTIES, INC.
                          FUNDS FROM OPERATIONS (1)


                                   Three months ended       Year ended
                                      December 31,         December 31,
                                     2006      2005      2006         2005

                                 (in thousands, except for per share amounts)
                                                  (unaudited)

    Net income available to common
     shareholders                   $71,655  $154,063  $873,635     $438,292

    Add:
      Minority interest in
       Operating Partnership         26,691    16,928    72,976       74,103
      Cumulative effect of a
       change in accounting
       principle                          -     4,235        -         4,223
    Less:
      Minority interest in
       property partnership               -     1,366     2,013        6,017
      Income from unconsolidated
       joint ventures                 1,340     1,530    24,507        4,829
      Gains on sales of real
       estate, net of minority
       interest                       1,183    48,542   606,394      151,884
      Income from discontinued
       operations, net of minority
       interest                           -       730         -        1,908
      Gains on sales of real
       estate from discontinued
       operations, net of minority
       interest                           -    39,364         -       47,656

    Income before minority
     interest in property
     partnership, income from
     unconsolidated joint
     ventures, minority interest
     in Operating Partnership,
     gains on sales of real estate
     and discontinued operations     95,823    83,694   313,697      304,324

    Add:
      Real estate depreciation and
       amortization (2)              71,495    67,987   283,350      274,476
      Income from discontinued
       operations                         -       869         -        2,279
      Income from unconsolidated
       joint ventures                 1,340     1,530     6,590 (3)    4,829
    Less:
      Minority interest in
       property partnership's
       share of funds from
       operations                         -       114       479          113
      Preferred distributions (4)     1,431     3,098     9,418       12,918

    Funds from operations (FFO)     167,227   150,868   593,740      572,877

    Add:
      Losses from early
       extinguishments of debt
       associated with the sales
       of real estate                   -         -      31,444       11,041

    Funds from operations after a
     supplemental adjustment to
     exclude losses from early
     extinguishments of debt
     associated with the sales
     of real estate                 167,227   150,868   625,184      583,918
    Less:
      Minority interest in the
       Operating Partnership's
       share of funds from
       operations after a
       supplemental adjustment
       to exclude losses from early
       extinguishments of debt
       associated with the sales of
       real estate                   25,377    24,167    97,519       94,946

    Funds from operations
     available to common
     shareholders after a
     supplemental adjustment to
     exclude losses from early
     extinguishments of debt
     associated with the sales of
     real estate                   $141,850  $126,701  $527,665     $488,972

    Our percentage share of funds
     from operations - basic          84.82%    83.98%    84.40%       83.74%

    Weighted average shares
     outstanding - basic            116,895   112,340   114,721      111,274

      FFO per share basic after a
       supplemental adjustment to
       exclude losses from early
       extinguishments of debt
       associated with the sales
       of real estate                 $1.21     $1.13     $4.60        $4.39

      FFO per share basic             $1.21     $1.13     $4.37        $4.31

    Weighted average shares
     outstanding - diluted          121,456   119,497   120,707      118,722

      FFO per share diluted after
       a supplemental adjustment
       to exclude losses from
       early extinguishments of
       debt associated with the
       sales of real estate           $1.18     $1.09     $4.47        $4.25

      FFO per share diluted           $1.18     $1.09     $4.25        $4.17

    (1) 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 excludes, among other
        items, interest expense (which may vary depending on the level of
        corporate debt or property-specific debt), as well as depreciation and
        amortization expense (which can vary among owners of identical assets
        in similar condition based on 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 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
        represents cash generated from operating activities determined in
        accordance with GAAP, and neither is 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.

    (2) Real estate depreciation and amortization consists of depreciation
        and amortization from the Consolidated Statements of Operations of
        $70,452, $66,290, $276,759 and $266,829, our share of unconsolidated
        joint venture real estate depreciation and amortization of $2,250,
        $2,174, $9,087 and $8,554 and depreciation and amortization from
        discontinued operations of $0, $63, $0 and $812, less corporate
        related depreciation and amortization of $295, $540, $1,584 and $1,719
        and adjustment of asset retirement obligations of $912, $0, $912 and
        $0 for the three months and year ended December 31, 2006 and 2005,
        respectively.

    (3) Excludes approximately $17.9 million related to our share of the gain
        on sale and related loss from early extinguishment of debt associated
        with the sale of 265 Franklin Street.


    (4) Excludes approximately $12.2 million for the three months and year
        ended December 31, 2006 and approximately $12.1 million for the year
        ended December 31, 2005 of income allocated to the holders of Series
        Two Preferred Units to account for their right to participate on an
        as-converted basis in the special dividend that followed previously
        completed sales of real estate.



                           BOSTON PROPERTIES, INC.
                PROJECTED 2007 AND 2008 RETURNS ON ACQUISITION

                                          Four and Five Cambridge Center and
                                                     East Garage

                                                     2007              2008
                                                     (dollars in thousands)

      Base rent and recoveries from tenants        $11,715           $15,645
      Straight-line rent                               249               169
      Fair value lease revenue                         936               858
      Parking and other                              2,009             2,072
      Total rental revenue                          14,909            18,744

      Operating Expenses                             4,479             4,642

      Revenue less Operating Expenses               10,430            14,102

      Depreciation and amortization                 11,074             9,687

      Net income (loss)                              $(644)           $4,415

      Add:
      Depreciation and amortization                 11,074             9,687

      Unleveraged FFO                              $10,430           $14,102

      Less:
      Straight-line rent                              (249)             (169)
      Fair value lease revenue                        (936)             (858)

      Unleveraged Cash                              $9,245           $13,075


      Cash                                        $186,000          $186,000
      Closing costs                                    275               275
      Tenant costs and capital improvements          4,925             9,372
      Total Investment                            $191,200          $195,647

      Unleveraged FFO Return (1)                       5.5%              7.2%

      Unleveraged Cash Return (2)                      4.8%              6.7%

    (1) Unleveraged FFO Return is determined by dividing the Unleveraged FFO
       (based on the projected results for the years ending December 31, 2007
       and 2008) by Total Investment. Other real estate companies may
       calculate this return differently. Management believes projected
       Unleveraged FFO Return is a useful measure in the real estate industry
       when determining the appropriate purchase price for a property or
       estimating a property's value. When evaluating acquisition
       opportunities, management considers, among other factors, projected
       Unleveraged FFO Return because it excludes, among other items, interest
       expense (which may vary depending on the level of corporate debt or
       property-specific debt), as well as depreciation and amortization
       expense (which can vary among owners of identical assets in similar
       condition based on historical cost accounting and useful life
       estimates). In addition, management considers its cost of capital and
       available financing alternatives in making decisions concerning
       acquisitions.

    (2) Unleveraged Cash Return is determined by dividing the Unleveraged
        Cash (based on the projected results for the years ending December 31,
        2007 and 2008) by Total Investment. Other real estate companies may
        calculate this return differently. Management believes that projected
        Unleveraged Cash Return is also a useful measure of a property's value
        when used in addition to Unleveraged FFO Return because, by
        eliminating the effect of straight-lining of rent and the SFAS No. 141
        treatment of in-place above- and below-market leases, it enables an
        investor to assess the cash on cash return from the property over the
        forecasted period.

        Management is presenting these projected returns and related
        calculations to assist investors in analyzing the Company's recent
        acquisition. Management does not intend to present this data for any
        other purpose, for any other period or for its other properties, and
        is not intending for these measures to otherwise provide information
        to investors about the Company's financial condition or results of
        operations. The Company does not undertake a duty to update any of
        these projections.



                           BOSTON PROPERTIES, INC.
                        PORTFOLIO LEASING PERCENTAGES



                                                  % Leased by Location
                                          December 31, 2006  December 31, 2005
    Greater Boston                              89.9%             89.9%
    Greater Washington, D.C.                    98.0%             97.2%
    Midtown Manhattan                           99.9%             98.3%
    Princeton/East Brunswick, NJ                87.9%             86.9%
    Greater San Francisco                       90.2%             90.8%
            Total Portfolio                     94.2%             93.8%

                                                    % Leased by Type
                                          December 31, 2006  December 31, 2005
    Class A Office Portfolio                      94.7%             93.7%
    Office/Technical Portfolio                    84.5%             97.6%
            Total Portfolio                       94.2%             93.8%

CONTACT:
Michael Walsh
Senior Vice President, Finance
+1-617-236-3410

Kathleen DiChiara
Investor Relations Manager
+1-617-236-3343
Both of Boston Properties, Inc.

Marilynn Meek
General Info. - Financial Relations Board for Boston Properties, Inc.
+1-212-827-3773