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  <xs:element id="bxp_MaximumEarnedAwards" abstract="false" name="MaximumEarnedAwards" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_MetropolitanSquareMember" abstract="true" name="MetropolitanSquareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SixZeroOneMassachusettsAvenueMember" abstract="true" name="SixZeroOneMassachusettsAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OpUnitEquivalenceToCommonStock" abstract="false" name="OpUnitEquivalenceToCommonStock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_LexingtonOfficeParkMember" abstract="true" name="LexingtonOfficeParkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TransferOfTenantLeaseCostsRealEstate" abstract="false" name="TransferOfTenantLeaseCostsRealEstate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_TwoPointFiveTwoFourPercentUnsecuredSeniorNotesMember" abstract="true" name="TwoPointFiveTwoFourPercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SeniorNotesPricing" abstract="false" name="SeniorNotesPricing" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_DiscoverySquareMember" abstract="true" name="DiscoverySquareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_CommonStockConversionRate" abstract="false" name="CommonStockConversionRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_TwoZeroZeroFifthAvenueJVLLCMember" abstract="true" name="TwoZeroZeroFifthAvenueJVLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TargetMember" abstract="true" name="TargetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NetOperatingIncome" abstract="false" name="NetOperatingIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_CoverageForActsOfTerrorismUnderTRIACoveredInExcessOfAmountCoveredByIXPTerrorism" abstract="false" name="CoverageForActsOfTerrorismUnderTRIACoveredInExcessOfAmountCoveredByIXPTerrorism" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_GatewayCommonsComplexpriortodeferredcontributionMemberMember" abstract="true" name="GatewayCommonsComplexpriortodeferredcontributionMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_EquityOfferingCostsPolicyPolicyTextBlock" abstract="false" name="EquityOfferingCostsPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bxp_UnconsolidatedJointVenturesMember" abstract="true" name="UnconsolidatedJointVenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_VestingPercentage" abstract="false" name="VestingPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_RealEstateBrokerageFirmMember" abstract="true" name="RealEstateBrokerageFirmMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Hub50HouseMember" abstract="true" name="Hub50HouseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_StockOptionandIncentivePlanTermPeriod" abstract="false" name="StockOptionandIncentivePlanTermPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="bxp_CommitmentsAndContingenciesLineItems" abstract="true" name="CommitmentsAndContingenciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_TwoThousandTwentyOneStockIncentivePlanMember" abstract="true" name="TwoThousandTwentyOneStockIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ReturnOfCapitalMember" abstract="true" name="ReturnOfCapitalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_DockSevenTwoMember" abstract="true" name="DockSevenTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MYLTIPtwothousandnineteenMember" abstract="true" name="MYLTIPtwothousandnineteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ReservoirPlaceMember" abstract="true" name="ReservoirPlaceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ShadyGroveInnovationDistrictMember" abstract="true" name="ShadyGroveInnovationDistrictMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_IncomeStatementBasisDifferential" abstract="false" name="IncomeStatementBasisDifferential" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_TotalOfficePropertiesMember" abstract="true" name="TotalOfficePropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_BpCrfNineZeroOneNewYorkAvenueLlcMember" abstract="true" name="BpCrfNineZeroOneNewYorkAvenueLlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_CompanysShareOfNetIncomeLoss" abstract="false" name="CompanysShareOfNetIncomeLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_TwoPointNineEightFourPercentUnsecuredSeniorNotesMember" abstract="true" name="TwoPointNineEightFourPercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SeparateUnrestrictedCashForDeferredCompensationPlan" abstract="false" name="SeparateUnrestrictedCashForDeferredCompensationPlan" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_SquareFourZeroSevenLimitedPartnershipMember" abstract="true" name="SquareFourZeroSevenLimitedPartnershipMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SummaryOfSignificantAccountingPoliciesTable" abstract="true" name="SummaryOfSignificantAccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="bxp_GeneralAndLimitedPartnersCapitalAccount" abstract="false" name="GeneralAndLimitedPartnersCapitalAccount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_NonRealEstateInvestmentsPolicyTextBlock" abstract="false" name="NonRealEstateInvestmentsPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bxp_AccountsReceivableCollectionPeriodExpected" abstract="false" name="AccountsReceivableCollectionPeriodExpected" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_MYLTIPTwoThousandTwentyTwoMember" abstract="true" name="MYLTIPTwoThousandTwentyTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ConstructionInProgressNetDeconsolidated" abstract="false" name="ConstructionInProgressNetDeconsolidated" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_KendallCenterMasterPlanMember" abstract="true" name="KendallCenterMasterPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_A760BoylstonStreetMember" abstract="true" name="A760BoylstonStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PlazaAtAlmadenMember" abstract="true" name="PlazaAtAlmadenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_GatewayCommonsComplexFutureDevelopmentMemberMember" abstract="true" name="GatewayCommonsComplexFutureDevelopmentMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NoncontrollinginterestpropertypartnershipsMember" abstract="true" name="NoncontrollinginterestpropertypartnershipsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_LTIPUnitsMember" abstract="true" name="LTIPUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_DividendsTreatmentForFederalTaxPurposes" abstract="false" name="DividendsTreatmentForFederalTaxPurposes" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bxp_CompanysShareMember" abstract="true" name="CompanysShareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SalesTypeLeaseOrigination" abstract="false" name="SalesTypeLeaseOrigination" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_SummaryOfSignificantAccountingPoliciesLineItems" abstract="true" name="SummaryOfSignificantAccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_UnvestedMYLTIPUnitsMember" abstract="true" name="UnvestedMYLTIPUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MYLTIPTwoThousandTwentyMember" abstract="true" name="MYLTIPTwoThousandTwentyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PerOccurrenceLimitOfEarthquakeInsuranceSeattle" abstract="false" name="PerOccurrenceLimitOfEarthquakeInsuranceSeattle" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_BelowMarketLeaseMember" abstract="true" name="BelowMarketLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_KingstowneTowneCenterMember" abstract="true" name="KingstowneTowneCenterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Bxp_ScheduleOfAggregatePrincipalPaymentsOnMortgageNotesTableTextBlockTableTextBlock" abstract="false" name="Bxp_ScheduleOfAggregatePrincipalPaymentsOnMortgageNotesTableTextBlockTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bxp_MYLTIPValueAmortizedIntoEarningsYears" abstract="false" name="MYLTIPValueAmortizedIntoEarningsYears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_OrdinaryIncomeMember" abstract="true" name="OrdinaryIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_TwoZeroZeroFifthAvenueMember" abstract="true" name="TwoZeroZeroFifthAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Rightofuseassetsfinanceleases" abstract="false" name="Rightofuseassetsfinanceleases" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_ColoradoCenterMember" abstract="true" name="ColoradoCenterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SalesforceTowerMember" abstract="true" name="SalesforceTowerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_CompanysTaxableIncomeDistribution" abstract="false" name="CompanysTaxableIncomeDistribution" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_TheAvantAtRestonTownCenterMember" abstract="true" name="TheAvantAtRestonTownCenterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_BostonPropertiesLimitedParntershipMember" abstract="true" name="BostonPropertiesLimitedParntershipMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OneNineZeroCityPointFormerlyEightZeroCityPointMember" abstract="true" name="OneNineZeroCityPointFormerlyEightZeroCityPointMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NonQualifiedEmployeeStockPurchasePlanMember" abstract="true" name="NonQualifiedEmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_FinanceLeasesUnderDevelopment" abstract="false" name="FinanceLeasesUnderDevelopment" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_AtmProgramMember" abstract="true" name="AtmProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ExcessStockValue" abstract="false" name="ExcessStockValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_CoverageForActsOfTerrorismUnderTriaCoveredInExcessOfAmountCoveredByIxp" abstract="false" name="CoverageForActsOfTerrorismUnderTriaCoveredInExcessOfAmountCoveredByIxp" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_TwoTwoZeroZeroPennsylvaniaAvenueMember" abstract="true" name="TwoTwoZeroZeroPennsylvaniaAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ProgramTriggerValue" abstract="false" name="ProgramTriggerValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsSharesOutstanding" abstract="false" name="NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsSharesOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_SixEightZeroFolsomStreetMember" abstract="true" name="SixEightZeroFolsomStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_AllocatedTo2022Member" abstract="true" name="AllocatedTo2022Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Potentialadditonalpaymentstojointventurepartner" abstract="false" name="Potentialadditonalpaymentstojointventurepartner" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_Paymentsonrealestatetransaction" abstract="false" name="Paymentsonrealestatetransaction" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_ValueOfLtipUnitsIssued" abstract="false" name="ValueOfLtipUnitsIssued" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_SanFranciscoMember" abstract="true" name="SanFranciscoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RestonNextOfficePhaseIIMember" abstract="true" name="RestonNextOfficePhaseIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_IssuanceOfRestrictedSecuritiesToEmployeesAndDirectors" abstract="false" name="IssuanceOfRestrictedSecuritiesToEmployeesAndDirectors" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_FourPointSixTwoEightPercentUnsecuredSeniorNotesMember" abstract="true" name="FourPointSixTwoEightPercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NumberOfVariableMortgageLoans" abstract="false" name="NumberOfVariableMortgageLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_ContractualSalesPrice" abstract="false" name="ContractualSalesPrice" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_TheHubOnCausewayPodiumMember" abstract="true" name="TheHubOnCausewayPodiumMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OpUnitsMember" abstract="true" name="OpUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NumberOfTenantsAboveConcentrationAmount" abstract="false" name="NumberOfTenantsAboveConcentrationAmount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="bxp_RosecransSepulvedaPartnersFourLLCMember" abstract="true" name="RosecransSepulvedaPartnersFourLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_CarnegieCenterMember" abstract="true" name="CarnegieCenterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_VestingPeriodAxis" abstract="true" name="VestingPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="bxp_Leasedpercentage" abstract="false" name="Leasedpercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_CashFDICInsuredLimit" abstract="false" name="CashFDICInsuredLimit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_BelowMarketLeasesMember" abstract="true" name="BelowMarketLeasesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PercentageOfTotalRentalExpenses" abstract="false" name="PercentageOfTotalRentalExpenses" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_ExercisePrice9846Member" abstract="true" name="ExercisePrice9846Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_UniversityPlaceMember" abstract="true" name="UniversityPlaceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_LtipsincludingvestedMYLTIPSAndRestrictedStockMember" abstract="true" name="LtipsincludingvestedMYLTIPSAndRestrictedStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NetIncomeAllocableToGeneralAndLimitedPartnerUnits" abstract="false" name="NetIncomeAllocableToGeneralAndLimitedPartnerUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_IncreaseDecreaseInParkingAndOtherRevenue" abstract="false" name="IncreaseDecreaseInParkingAndOtherRevenue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_FiveNineNineLexingtonAvenueMember" abstract="true" name="FiveNineNineLexingtonAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RestonGatewayMasterPlanMember" abstract="true" name="RestonGatewayMasterPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Minimumsquarefootagetomakeapotentialadditionalpaymenttojointventurepartnerinsqft" abstract="false" name="Minimumsquarefootagetomakeapotentialadditionalpaymenttojointventurepartnerinsqft" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:areaItemType"/>
  <xs:element id="bxp_TwoThousandTwelveStockOptionAndIncentivePlanMember" abstract="true" name="TwoThousandTwelveStockOptionAndIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SevenSevenCityPointMember" abstract="true" name="SevenSevenCityPointMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeFiveFiveMainStreetMember" abstract="true" name="ThreeFiveFiveMainStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeHudsonBoulevardMember" abstract="true" name="ThreeHudsonBoulevardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SeriesBDividendRatePercentage" abstract="false" name="SeriesBDividendRatePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_TwoFiveZeroBinneyStreetMember" abstract="true" name="TwoFiveZeroBinneyStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OneTwoSixFiveMainOfficeJVLLCMember" abstract="true" name="OneTwoSixFiveMainOfficeJVLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ScheduleOfBalanceSheetsOfUnconsolidatedJointVenturesTextBlock" abstract="false" name="ScheduleOfBalanceSheetsOfUnconsolidatedJointVenturesTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bxp_OneNineFiveWestStreetMember" abstract="true" name="OneNineFiveWestStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NorthFirstBusinessParkMember" abstract="true" name="NorthFirstBusinessParkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_AllocatedTo2023Member" abstract="true" name="AllocatedTo2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember" abstract="true" name="ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_CapitalGainIncomeMember" abstract="true" name="CapitalGainIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ExercisedWeightedAvergeExercisePrice" abstract="false" name="ExercisedWeightedAvergeExercisePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bxp_DefinedContributionPlanEmployerMatchingContributionEligibleEarningsLimitByIRSAmount" abstract="false" name="DefinedContributionPlanEmployerMatchingContributionEligibleEarningsLimitByIRSAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_InsurancePolicyLimit" abstract="false" name="InsurancePolicyLimit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_CAColoradoCenterLLCMember" abstract="true" name="CAColoradoCenterLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PercentageofCompanysShareofNetOperatingIncome" abstract="false" name="PercentageofCompanysShareofNetOperatingIncome" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="bxp_MYLTIPtwothousandfifteenMember" abstract="true" name="MYLTIPtwothousandfifteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_StockOptionAndIncentivePlanAndStockRepurchasePlanDomain" abstract="true" name="StockOptionAndIncentivePlanAndStockRepurchasePlanDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ProgramTriggerCoinsurance" abstract="false" name="ProgramTriggerCoinsurance" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_Saleofaninterestinpropertypartnerships" abstract="false" name="Saleofaninterestinpropertypartnerships" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_OneZeroThreeCityPointMember" abstract="true" name="OneZeroThreeCityPointMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_BNYAAmenityOperatorLLCMember" abstract="true" name="BNYAAmenityOperatorLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OneAndTwoRestonOverlookMember" abstract="true" name="OneAndTwoRestonOverlookMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TwoThreeZeroCityPointMember" abstract="true" name="TwoThreeZeroCityPointMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember" abstract="true" name="ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_AtMarketStockOfferingProgramMaximumLengthOfSaleinyears" abstract="false" name="AtMarketStockOfferingProgramMaximumLengthOfSaleinyears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_RedeemableCommonUnits" abstract="false" name="RedeemableCommonUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_MYLTIPTwoThousandEighteenMember" abstract="true" name="MYLTIPTwoThousandEighteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NetIncomeLossAvailableToCommonStockholdersAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasic" abstract="false" name="NetIncomeLossAvailableToCommonStockholdersAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasic" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_KendallCenterFutureDevelopmentMember" abstract="true" name="KendallCenterFutureDevelopmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_UnencumberedAssetValueMinimum" abstract="false" name="UnencumberedAssetValueMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_AffiliateOfBernsteinCompaniesMember" abstract="true" name="AffiliateOfBernsteinCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_A2023UnsecuredTermLoanMember" abstract="true" name="A2023UnsecuredTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_HomeownershipunitsMember" abstract="true" name="HomeownershipunitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_BPCRFMetropolitanSquareLLCMember" abstract="true" name="BPCRFMetropolitanSquareLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_WorldgateDriveMember" abstract="true" name="WorldgateDriveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember" abstract="true" name="ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_WeightedAverageNumberOfSharesOutstandingAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasicinshares" abstract="false" name="WeightedAverageNumberOfSharesOutstandingAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasicinshares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_TwoFreedomSquareMember" abstract="true" name="TwoFreedomSquareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ScheduleOfStatementsOfOperationsOfUnconsolidatedJointVenturesTextBock" abstract="false" name="ScheduleOfStatementsOfOperationsOfUnconsolidatedJointVenturesTextBock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bxp_ConversionOf2012OPPUnitsAndMYLTIPSMember" abstract="true" name="ConversionOf2012OPPUnitsAndMYLTIPSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bxp_WeightedAverageNumberDilutedSharesOutstandingAdjustmentpershare" abstract="false" name="WeightedAverageNumberDilutedSharesOutstandingAdjustmentpershare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bxp_Numberofextensions" abstract="false" name="Numberofextensions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_EarningsPerShareAfterAllocationOfUndistributedEarningsToParticipatingSecuritiesBasicDollarsPerShare" abstract="false" name="EarningsPerShareAfterAllocationOfUndistributedEarningsToParticipatingSecuritiesBasicDollarsPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bxp_GatewayCommonsComplexMember" abstract="true" name="GatewayCommonsComplexMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Writeoffoffullydepreciatedrealestate" abstract="false" name="Writeoffoffullydepreciatedrealestate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_StockOptionAwardsConversionRatio" abstract="false" name="StockOptionAwardsConversionRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_CohenSteersRealtyMajorsPortfolioIndexMember" abstract="true" name="CohenSteersRealtyMajorsPortfolioIndexMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_UnvestedMYLTIPDistributionsAsComparedToTotalDistributionsPercentage" abstract="false" name="UnvestedMYLTIPDistributionsAsComparedToTotalDistributionsPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_OpUnitsAndLTIPUnitsMember" abstract="true" name="OpUnitsAndLTIPUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_DividendPolicyPolicyTextBlock" abstract="false" name="DividendPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bxp_AffordableHousingrequirement" abstract="false" name="AffordableHousingrequirement" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_UnvestedTwoThousandSeventeenEighteenandNineteenMYLTIPUnitsMember" abstract="true" name="UnvestedTwoThousandSeventeenEighteenandNineteenMYLTIPUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OneFourZeroKendrickStreetMember" abstract="true" name="OneFourZeroKendrickStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Programtriggerdeductible" abstract="false" name="Programtriggerdeductible" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_RestonNextRetailMember" abstract="true" name="RestonNextRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RentalRevenueClassOffice" abstract="false" name="RentalRevenueClassOffice" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_OfficeTowerDeveloperLLCMember" abstract="true" name="OfficeTowerDeveloperLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_FixedChargeCoverageMinimum" abstract="false" name="FixedChargeCoverageMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_FiveThreeFiveMissionStreetMember" abstract="true" name="FiveThreeFiveMissionStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_CompanyShareOfEquity" abstract="false" name="CompanyShareOfEquity" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_ScheduleOfStockOptionsOutstandingTableTextBlock" abstract="false" name="ScheduleOfStockOptionsOutstandingTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bxp_PerOccurrenceLimitForNbcrCoverage" abstract="false" name="PerOccurrenceLimitForNbcrCoverage" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_PerOccurrenceLimitOfEarthQuakeInsuranceSanFranciscoandLosAngeles" abstract="false" name="PerOccurrenceLimitOfEarthQuakeInsuranceSanFranciscoandLosAngeles" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_InvestmentInUnconsolidatedJointVentureMeasurementInput" abstract="false" name="InvestmentInUnconsolidatedJointVentureMeasurementInput" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_NumberOfNonEmployeeDirectorsElectingToReceiveDeferredStockUnits" abstract="false" name="NumberOfNonEmployeeDirectorsElectingToReceiveDeferredStockUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_SafecoPartnerEntityOneMember" abstract="true" name="SafecoPartnerEntityOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_FountainSquareMember" abstract="true" name="FountainSquareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_FiveFourZeroMadisonVentureLlcMember" abstract="true" name="FiveFourZeroMadisonVentureLlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_DistributionsPercentBeforeMeasurementDate" abstract="false" name="DistributionsPercentBeforeMeasurementDate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_SixZeroOneLexingtonAvenueMember" abstract="true" name="SixZeroOneLexingtonAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_DifferenceBetweenPurchasePriceAndCarryingValue" abstract="false" name="DifferenceBetweenPurchasePriceAndCarryingValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_ThreePointNineOneSixPercentUnsecuredSeniorNotesMember" abstract="true" name="ThreePointNineOneSixPercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TwoZeroZeroWestStreetMember" abstract="true" name="TwoZeroZeroWestStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SafecoPlazaMember" abstract="true" name="SafecoPlazaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PerformanceIndexDomain" abstract="true" name="PerformanceIndexDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_AboveAndBelowMarketRentAdjustments" abstract="false" name="AboveAndBelowMarketRentAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_SevenSixSevenVentureLlcMember" abstract="true" name="SevenSixSevenVentureLlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ConversionsOfNoncontrollingInterestsToStockholdersEquity" abstract="false" name="ConversionsOfNoncontrollingInterestsToStockholdersEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_OneZeroZeroFederalStreetMember" abstract="true" name="OneZeroZeroFederalStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeSixZeroPASHoldcoLLCMember" abstract="true" name="ThreeSixZeroPASHoldcoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TransferOfTenantImprovementsRealEstate" abstract="false" name="TransferOfTenantImprovementsRealEstate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_OppUnitsTwoThousandAndTwelveMember" abstract="true" name="OppUnitsTwoThousandAndTwelveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SixPointNineTwoFourPercentUnsecuredSeniorNotesMember" abstract="true" name="SixPointNineTwoFourPercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TwothousandtwentyMYLTIPSMemberMember" abstract="true" name="TwothousandtwentyMYLTIPSMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bxp_PodiumDeveloperLLCMember" abstract="true" name="PodiumDeveloperLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeSixZeroParkAvenueSouthPartnersEntityOneMember" abstract="true" name="ThreeSixZeroParkAvenueSouthPartnersEntityOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_A360ParkSouthAvenueMember" abstract="true" name="A360ParkSouthAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PRIIBXPRestonGatewayLLCMember" abstract="true" name="PRIIBXPRestonGatewayLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TimesSquareTowerMember" abstract="true" name="TimesSquareTowerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MYLTIPTwothousandfourteenMember" abstract="true" name="MYLTIPTwothousandfourteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RealEstateAndAccumulatedDepreciationLifeUsedForDepreciationYears" abstract="false" name="RealEstateAndAccumulatedDepreciationLifeUsedForDepreciationYears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_BNYTowerHoldingsLLCMember" abstract="true" name="BNYTowerHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PreferredStockRedemptionPricePerSharePlusAccruedAndUnpaidDividends" abstract="false" name="PreferredStockRedemptionPricePerSharePlusAccruedAndUnpaidDividends" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bxp_Accruedrentalincomenetdeconsolidated" abstract="false" name="Accruedrentalincomenetdeconsolidated" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_AccumulatedAmortizationLeasingAndFinancingCosts" abstract="false" name="AccumulatedAmortizationLeasingAndFinancingCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_MYLTIPvestingtwothousandtwentytwoMember" abstract="true" name="MYLTIPvestingtwothousandtwentytwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Allocationofundistributedearningstoparticipatingsecuritiesinshares" abstract="false" name="Allocationofundistributedearningstoparticipatingsecuritiesinshares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_MYLTIPvestingtwothousandtwentyoneMemberMember" abstract="true" name="MYLTIPvestingtwothousandtwentyoneMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsLongTermIncentiveUnitsAtRedemptionValueSharesOutstanding" abstract="false" name="NoncontrollingInterestRedeemablePartnershipUnitsCommonUnitsLongTermIncentiveUnitsAtRedemptionValueSharesOutstanding" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="bxp_RealEstateAccumulatedDepreciationExcludingFurnitureFixturesAndEquipment" abstract="false" name="RealEstateAccumulatedDepreciationExcludingFurnitureFixturesAndEquipment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bxp_RealEstateAccumulatedDepreciationRealEstateSoldExcludingFurnitureFixturesAndEquipment" abstract="false" name="RealEstateAccumulatedDepreciationRealEstateSoldExcludingFurnitureFixturesAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bxp_NareitOfficeIndexAdjustedMember" abstract="true" name="NareitOfficeIndexAdjustedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RedemptionOfOPUnitsIssuedOnConversionOfLTIPandMYLTIPUnits" abstract="false" name="RedemptionOfOPUnitsIssuedOnConversionOfLTIPandMYLTIPUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="bxp_PrepaidExpensesAndOtherAssetsNetDeconsolidated" abstract="false" name="PrepaidExpensesAndOtherAssetsNetDeconsolidated" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bxp_AmountOfEarthquakeInsuranceProvidedByIXPLLCAsDirectInsurerSanFranciscoandLosAngeles" abstract="false" name="AmountOfEarthquakeInsuranceProvidedByIXPLLCAsDirectInsurerSanFranciscoandLosAngeles" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bxp_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTenantImprovements" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTenantImprovements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bxp_A2021CreditFacilityAnd2022UnsecuredTermLoanMember" abstract="true" name="A2021CreditFacilityAnd2022UnsecuredTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bxp_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesnet" abstract="false" name="InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesnet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_RestonNextMember" abstract="true" name="RestonNextMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SecuredDebtLeverageRatioMaximum" abstract="false" name="SecuredDebtLeverageRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_AnnualAggregateLimitOfEarthquakeInsuranceSeattle" abstract="false" name="AnnualAggregateLimitOfEarthquakeInsuranceSeattle" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_NumberOfPromoteEntities" abstract="false" name="NumberOfPromoteEntities" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_PercentageOfTotalRevenue" abstract="false" name="PercentageOfTotalRevenue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_OneFreedomSquareMember" abstract="true" name="OneFreedomSquareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TreasuryStockPolicyTextBlock" abstract="false" name="TreasuryStockPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember" abstract="true" name="ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_BroadRunBusinessParkMember" abstract="true" name="BroadRunBusinessParkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MadisonCentreAndOneTwoFiveBroadwayMember" abstract="true" name="MadisonCentreAndOneTwoFiveBroadwayMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TwoFourFourZeroWestElCaminoRealMember" abstract="true" name="TwoFourFourZeroWestElCaminoRealMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_Finalawardspercentageoftarget" abstract="false" name="Finalawardspercentageoftarget" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_KendallCenterYellowGarageMember" abstract="true" name="KendallCenterYellowGarageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PercentageOfTotalNetOperatingIncome" abstract="false" name="PercentageOfTotalNetOperatingIncome" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_EmployeeAndDirectorPaymentPerShare" abstract="false" name="EmployeeAndDirectorPaymentPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bxp_OneHundredCausewayStreetMember" abstract="true" name="OneHundredCausewayStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_WisconsinPlaceMember" abstract="true" name="WisconsinPlaceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_VirginiaOfficeParkMember" abstract="true" name="VirginiaOfficeParkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_LesseePurchaseOptionReasonablyCertainOfExercising" abstract="false" name="LesseePurchaseOptionReasonablyCertainOfExercising" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_EightNineZeroWinterStreetMember" abstract="true" name="EightNineZeroWinterStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_EmbarcaderoCenterMember" abstract="true" name="EmbarcaderoCenterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_DividendsTreatmentForFederalTaxPurposesPercentage" abstract="false" name="DividendsTreatmentForFederalTaxPurposesPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_SixNineZeroFolsomStreetMember" abstract="true" name="SixNineZeroFolsomStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_UnsecuredDebtInterestCoverageRatio" abstract="false" name="UnsecuredDebtInterestCoverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_ThreeTwoHartwellAvenueMember" abstract="true" name="ThreeTwoHartwellAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_UnsecuredDebtLeverageRatioMaximum" abstract="false" name="UnsecuredDebtLeverageRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_ThreeSixTwoFiveThreeSixThreeFivePetersonWayMember" abstract="true" name="ThreeSixTwoFiveThreeSixThreeFivePetersonWayMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OtherThanStockOptionsAwardsConversionRatio" abstract="false" name="OtherThanStockOptionsAwardsConversionRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_NumberOfParkingSpace" abstract="false" name="NumberOfParkingSpace" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_SevenSixSevenFifthAvenueTheGeneralMotorsBuildingMember" abstract="true" name="SevenSixSevenFifthAvenueTheGeneralMotorsBuildingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NumberofVIEs" abstract="false" name="NumberofVIEs" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="bxp_TheSkylyneMember" abstract="true" name="TheSkylyneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SevenFiveOneGatewayMember" abstract="true" name="SevenFiveOneGatewayMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeSixZeroParkAvenueSouthPartnersEntityTwoMember" abstract="true" name="ThreeSixZeroParkAvenueSouthPartnersEntityTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_AtMarketStockOfferingProgramAggregateValueOfCommonStock" abstract="false" name="AtMarketStockOfferingProgramAggregateValueOfCommonStock" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_OneFourZeroKendrickBuildingAMember" abstract="true" name="OneFourZeroKendrickBuildingAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MYLTIPtwothousandthirteenMember" abstract="true" name="MYLTIPtwothousandthirteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TSRMeasurementYears" abstract="false" name="TSRMeasurementYears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="bxp_DerecognitionOfAssetsInExchangeForSalesTypeLeaseObligation" abstract="false" name="DerecognitionOfAssetsInExchangeForSalesTypeLeaseObligation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_OneZeroFiveBroadwayMember" abstract="true" name="OneZeroFiveBroadwayMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NumberOfBusinessDaysAverageClosingPrice" abstract="false" name="NumberOfBusinessDaysAverageClosingPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_TheAvantRetailMember" abstract="true" name="TheAvantRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RestrictionOnRedemptionOfOpUnitsFromDateOfIssuanceInYears" abstract="false" name="RestrictionOnRedemptionOfOpUnitsFromDateOfIssuanceInYears" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:positiveIntegerItemType"/>
  <xs:element id="bxp_TenCityPointMember" abstract="true" name="TenCityPointMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RestonOverlookMasterPlanMember" abstract="true" name="RestonOverlookMasterPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_StockholdersEquityPartnersCapitalAbstract" abstract="true" name="StockholdersEquityPartnersCapitalAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_WpProjectDeveloperLlcMember" abstract="true" name="WpProjectDeveloperLlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MadisonCentreMember" abstract="true" name="MadisonCentreMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_WestonQuarryMember" abstract="true" name="WestonQuarryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PrudentialCenterMember" abstract="true" name="PrudentialCenterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MYLTIPtwothousandseventeenMember" abstract="true" name="MYLTIPtwothousandseventeenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RentalRevenueResidential" abstract="false" name="RentalRevenueResidential" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_SouthOfMarketAndDemocracyTowerMember" abstract="true" name="SouthOfMarketAndDemocracyTowerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ParcelsOfUndevelopedLand" abstract="false" name="ParcelsOfUndevelopedLand" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_A2012OPPAnd20132019MYLTIPMember" abstract="true" name="A2012OPPAnd20132019MYLTIPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TwoFiveFiveMainStreetMember" abstract="true" name="TwoFiveFiveMainStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeZeroZeroBinneyStreetMember" abstract="true" name="ThreeZeroZeroBinneyStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OperatingPartnershipGuaranteeToCoverLiabilitiesOfSubsidiary" abstract="false" name="OperatingPartnershipGuaranteeToCoverLiabilitiesOfSubsidiary" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_SeventeenHartwellAvenueMember" abstract="true" name="SeventeenHartwellAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_CommonStockWeightedAveragePrice" abstract="false" name="CommonStockWeightedAveragePrice" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bxp_SumnerSquareMember" abstract="true" name="SumnerSquareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_FiveZeroZeroNorthCapitolLlcMember" abstract="true" name="FiveZeroZeroNorthCapitolLlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OpUnitConversionRate" abstract="false" name="OpUnitConversionRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_NameOfJointVentureProperty" abstract="false" name="NameOfJointVentureProperty" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_FivezerooneKStreetLLCMember" abstract="true" name="FivezerooneKStreetLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RentalExpensesClassOffice" abstract="false" name="RentalExpensesClassOffice" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_Proceedsfromnoncontrollinginterestincludingacontributionrelatedtotherepaymentofamembersnotepayable" abstract="false" name="Proceedsfromnoncontrollinginterestincludingacontributionrelatedtotherepaymentofamembersnotepayable" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_CommitmentsAndContingenciesDisclosureTable" abstract="true" name="CommitmentsAndContingenciesDisclosureTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="bxp_Minimumearnedawards" abstract="false" name="Minimumearnedawards" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_MYLTIPTwoThousandTwentyThreeMember" abstract="true" name="MYLTIPTwoThousandTwentyThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PerformanceIndexAxis" abstract="true" name="PerformanceIndexAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="bxp_TwoPointSixSevenOnePercentUnsecuredSeniorNotesMember" abstract="true" name="TwoPointSixSevenOnePercentUnsecuredSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NineTwoOneZeroZeroHaydenAvenueMember" abstract="true" name="NineTwoOneZeroZeroHaydenAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_LoudounCountyLandMember" abstract="true" name="LoudounCountyLandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TwoThousandTwentyOneMYLTIPSMember" abstract="true" name="TwoThousandTwentyOneMYLTIPSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MortgageNotesPayableDeconsolidated" abstract="false" name="MortgageNotesPayableDeconsolidated" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_InterestCoverageMaximum" abstract="false" name="InterestCoverageMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_EarnedwardsTarget" abstract="false" name="EarnedwardsTarget" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_ThreeTwoFiveMainStreetMember" abstract="true" name="ThreeTwoFiveMainStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ExcessStockParOrStatedValuePerShare" abstract="false" name="ExcessStockParOrStatedValuePerShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="bxp_DepositorySharesOfSeriesBCumulativeRedeemablePreferredMember" abstract="true" name="DepositorySharesOfSeriesBCumulativeRedeemablePreferredMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
