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  <xs:element id="bxp_EnvironmentalFocusedInvestmentFundMember" abstract="true" name="EnvironmentalFocusedInvestmentFundMember" 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_ShadyGroveInnovationDistrictMember" abstract="true" name="ShadyGroveInnovationDistrictMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ColoradoCenterGatewayCommonsAndSafecoPlazaMember" abstract="true" name="ColoradoCenterGatewayCommonsAndSafecoPlazaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PlatformSixteenThreeSixZeroParkAvenueSouthTwoZeroZeroFifthAvenueAndSafecoPlazaMember" abstract="true" name="PlatformSixteenThreeSixZeroParkAvenueSouthTwoZeroZeroFifthAvenueAndSafecoPlazaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_TwoPointZeroZeroPercentUnsecuredExchangeableSeniorNotesMember" abstract="true" name="TwoPointZeroZeroPercentUnsecuredExchangeableSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SalariesAndRelatedCostsCapitalized" abstract="false" name="SalariesAndRelatedCostsCapitalized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_SeparateUnrestrictedCashForDeferredCompensationPlan" abstract="false" name="SeparateUnrestrictedCashForDeferredCompensationPlan" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_U.S.TreasuryBillTermOfContract" abstract="false" name="U.S.TreasuryBillTermOfContract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="bxp_AccountsReceivableCollectionPeriodExpected" abstract="false" name="AccountsReceivableCollectionPeriodExpected" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_REITDistributionRequirement" abstract="false" name="REITDistributionRequirement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_NumberOfVIEs" abstract="false" name="NumberOfVIEs" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="bxp_RealEstateInvestmentPropertyAtCostIncludingRightofUseAssets" abstract="false" name="RealEstateInvestmentPropertyAtCostIncludingRightofUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_OneThreeThreeZeroConnecticutAvenueMember" abstract="true" name="OneThreeThreeZeroConnecticutAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ShadyGroveParcelThreeMember" abstract="true" name="ShadyGroveParcelThreeMember" 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_RestonNextRetailMember" abstract="true" name="RestonNextRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OneZeroFiveZeroWinterStreetMember" abstract="true" name="OneZeroFiveZeroWinterStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_RestonNextOfficePhaseIIMember" abstract="true" name="RestonNextOfficePhaseIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeFourThreeMadisonAvenueMember" abstract="true" name="ThreeFourThreeMadisonAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NumberOfFloors" abstract="false" name="NumberOfFloors" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <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_WpProjectDeveloperLlcMember" abstract="true" name="WpProjectDeveloperLlcMember" 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_FivezerooneKStreetLLCMember" abstract="true" name="FivezerooneKStreetLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_PodiumVentureLLCMember" abstract="true" name="PodiumVentureLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ResidentialTowerDeveloperLLCMember" abstract="true" name="ResidentialTowerDeveloperLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_HotelTowerDeveloperLLCMember" abstract="true" name="HotelTowerDeveloperLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_OfficeVentureLLCMember" abstract="true" name="OfficeVentureLLCMember" 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_BNYTowerHoldingsLLCMember" abstract="true" name="BNYTowerHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_SevensevenfivezeroWisconsinAvenueLLCMember" abstract="true" name="SevensevenfivezeroWisconsinAvenueLLCMember" 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_PlatformSixteenMember" abstract="true" name="PlatformSixteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_RosecransSepulvedaPartnersFourLLCMember" abstract="true" name="RosecransSepulvedaPartnersFourLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SafecoPlazaREITLLCMember" abstract="true" name="SafecoPlazaREITLLCMember" 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_PRIIBXPRestonGatewayLLCMember" abstract="true" name="PRIIBXPRestonGatewayLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_A751GatewayHoldingsLLCMember" abstract="true" name="A751GatewayHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ABXPWorldgateInvestmentsLLCMember" abstract="true" name="ABXPWorldgateInvestmentsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_EntityOwningLandAndInfrastructureOfProjectMember" abstract="true" name="EntityOwningLandAndInfrastructureOfProjectMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SafecoPartnerEntityOneMember" abstract="true" name="SafecoPartnerEntityOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember" abstract="true" name="ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bxp_CAB290ColesHoldcoLLCMember" abstract="true" name="CAB290ColesHoldcoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SeventeenHartwellAvenueJVLLCMember" abstract="true" name="SeventeenHartwellAvenueJVLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_JointVenturePartnerMember" abstract="true" name="JointVenturePartnerMember" 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_InternalRateOfReturnOnPreferredEquity" abstract="false" name="InternalRateOfReturnOnPreferredEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_InvestmentsInUnconsolidatedJointVenturesAbstract" abstract="true" name="InvestmentsInUnconsolidatedJointVenturesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_OtherUnconsolidatedJVSMember" abstract="true" name="OtherUnconsolidatedJVSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RemainingOtherInvestmentMember" abstract="true" name="RemainingOtherInvestmentMember" 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_BasisDifferentialMember" abstract="true" name="BasisDifferentialMember" 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_GainOnUnconsolidatedJointVentureInvestment" abstract="false" name="GainOnUnconsolidatedJointVentureInvestment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_SevenSevenFiveZeroWisconsinAvenueMember" abstract="true" name="SevenSevenFiveZeroWisconsinAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_A290ColesStreetMember" abstract="true" name="A290ColesStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeSixZeroParkAvenueSouthMember" abstract="true" name="ThreeSixZeroParkAvenueSouthMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_HubOnCausewayPodiumAndOneZeroZeroCausewayStreetMember" abstract="true" name="HubOnCausewayPodiumAndOneZeroZeroCausewayStreetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bxp_HubOnCausewayPodiumMember" abstract="true" name="HubOnCausewayPodiumMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_BeachCitiesMediaCampusMember" abstract="true" name="BeachCitiesMediaCampusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_LongTermDebtIncludingAccruedInterest" abstract="false" name="LongTermDebtIncludingAccruedInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_ExtensionOptioninyears" abstract="false" name="ExtensionOptioninyears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_ContractualSalePrice" abstract="false" name="ContractualSalePrice" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_OtherThanTemporaryImpairmentLossesEquityMethodInvestmentsCapitalizationRate" abstract="false" name="OtherThanTemporaryImpairmentLossesEquityMethodInvestmentsCapitalizationRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_OtherThanTemporaryImpairmentLossesEquityMethodInvestmentsDiscountRate" abstract="false" name="OtherThanTemporaryImpairmentLossesEquityMethodInvestmentsDiscountRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_FivePointEightFourTwoPercentMember" abstract="true" name="FivePointEightFourTwoPercentMember" 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_LeverageRatio" abstract="false" name="LeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_InterestCoverageMinimum" abstract="false" name="InterestCoverageMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <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_LineOfCreditAdditionalBorrowingCapacity" abstract="false" name="LineOfCreditAdditionalBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_LineOfCreditBorrowingCapacityIncreaseDecrease" abstract="false" name="LineOfCreditBorrowingCapacityIncreaseDecrease" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_LineOfCreditFacilityInterestRateReduction" abstract="false" name="LineOfCreditFacilityInterestRateReduction" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_LineOfCreditFacilityMaximumPercentForLoanAdvances" abstract="false" name="LineOfCreditFacilityMaximumPercentForLoanAdvances" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_DebtInstrumentAlternateBasisSpreadOnVariableRate" abstract="false" name="DebtInstrumentAlternateBasisSpreadOnVariableRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_CommercialPaperMaximumBorrowingCapacity" abstract="false" name="CommercialPaperMaximumBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_TermLoanFacilityMember" abstract="true" name="TermLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_A2024UnsecuredTermLoanMember" abstract="true" name="A2024UnsecuredTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MarginBasedOnBorrowersCreditRatingMember" abstract="true" name="MarginBasedOnBorrowersCreditRatingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_DailySimpleSecuredOvernightFinancingRateSOFRMember" abstract="true" name="DailySimpleSecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_AdjustedTermSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" abstract="true" name="AdjustedTermSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_NumberOfAdditionalTermLoans" abstract="false" name="NumberOfAdditionalTermLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_Numberofextensions" abstract="false" name="Numberofextensions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_ExtensionOptionInMonths" abstract="false" name="ExtensionOptionInMonths" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_Per1000PrincipalAmountMember" abstract="true" name="Per1000PrincipalAmountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ProceedsFromConvertibleDebtNetOfIssuanceAndHedgingCosts" abstract="false" name="ProceedsFromConvertibleDebtNetOfIssuanceAndHedgingCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_DebtInstrumentConvertibleExchangePremiumPercentage" abstract="false" name="DebtInstrumentConvertibleExchangePremiumPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_CappedCallPremium" abstract="false" name="CappedCallPremium" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_A2024UnsecuredTermLoanAnd2023UnsecuredTermLoanMember" abstract="true" name="A2024UnsecuredTermLoanAnd2023UnsecuredTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_LeverageRatioMaximum" abstract="false" name="LeverageRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_FixedChargeCoverageMaximum" abstract="false" name="FixedChargeCoverageMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_FixedChargeCoverageMinimum" abstract="false" name="FixedChargeCoverageMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_UnsecuredDebtLeverageRatio" abstract="false" name="UnsecuredDebtLeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_UnsecuredDebtInterestCoverageRatio" abstract="false" name="UnsecuredDebtInterestCoverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="bxp_SantaMonicaBusinessParkAndTwoZeroTwoFourUnsecuredTermLoanMember" abstract="true" name="SantaMonicaBusinessParkAndTwoZeroTwoFourUnsecuredTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SantaMonicaBusinessParkMember" abstract="true" name="SantaMonicaBusinessParkMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ThreeTwoFiveMainStreetThreeFiveFiveMainStreetNinetyBroadwayAndKendallCenterGreenGaragePropertiesMember" abstract="true" name="ThreeTwoFiveMainStreetThreeFiveFiveMainStreetNinetyBroadwayAndKendallCenterGreenGaragePropertiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_CommitmentsAndContingenciesDisclosureTable" abstract="true" name="CommitmentsAndContingenciesDisclosureTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <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_TwoNineZeroBinneyMember" abstract="true" name="TwoNineZeroBinneyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_SixZeroOneLexingtonAvenueMember" abstract="true" name="SixZeroOneLexingtonAvenueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_CommitmentsAndContingenciesLineItems" abstract="true" name="CommitmentsAndContingenciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bxp_LetterOfCreditAndPerformanceObligation" abstract="false" name="LetterOfCreditAndPerformanceObligation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_EstimatedLiabilityNotAccrued" abstract="false" name="EstimatedLiabilityNotAccrued" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_ConsolidatedEntitiesOwnershipPercentage" abstract="false" name="ConsolidatedEntitiesOwnershipPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_InsurancePolicyLimit" abstract="false" name="InsurancePolicyLimit" 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_CoverageForActsOfTerrorismUnderTRIACoveredInExcessOfAmountCoveredByIXPPropertyAndTerrorism" abstract="false" name="CoverageForActsOfTerrorismUnderTRIACoveredInExcessOfAmountCoveredByIXPPropertyAndTerrorism" 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_SumOfCoverageCoveredByIXPAndExcessCoverageForPropertyAndTerrorism" abstract="false" name="SumOfCoverageCoveredByIXPAndExcessCoverageForPropertyAndTerrorism" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_ProgramTriggerValue" abstract="false" name="ProgramTriggerValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_Programtriggerdeductible" abstract="false" name="Programtriggerdeductible" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_AnnualAggregateLimitOfEarthQuakeInsuranceSanFranciscoandLosAngeles" abstract="false" name="AnnualAggregateLimitOfEarthQuakeInsuranceSanFranciscoandLosAngeles" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_AmountOfEarthquakeInsuranceProvidedByIXPLLCAsDirectInsurerSanFranciscoandLosAngeles" abstract="false" name="AmountOfEarthquakeInsuranceProvidedByIXPLLCAsDirectInsurerSanFranciscoandLosAngeles" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_EarthquakeDeductibleInsurancePercentageOfValueOfTheAffectedPropertySanFranciscoandLosAngeles" abstract="false" name="EarthquakeDeductibleInsurancePercentageOfValueOfTheAffectedPropertySanFranciscoandLosAngeles" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_AnnualAggregateLimitOfEarthquakeInsuranceSeattle" abstract="false" name="AnnualAggregateLimitOfEarthquakeInsuranceSeattle" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_EarthquakeDeductibleInsurancePercentageOfValueOfTheAffectedPropertySeattle" abstract="false" name="EarthquakeDeductibleInsurancePercentageOfValueOfTheAffectedPropertySeattle" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_OpUnitsMember" abstract="true" name="OpUnitsMember" 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_MYLTIPTwoThousandTwentyTwoMember" abstract="true" name="MYLTIPTwoThousandTwentyTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_MYLTIPTwoThousandTwentyFourMember" abstract="true" name="MYLTIPTwoThousandTwentyFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_A2012OPPAnd20132022MYLTIPMember" abstract="true" name="A2012OPPAnd20132022MYLTIPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MYLTIPTwoThousandTwentyFiveMember" abstract="true" name="MYLTIPTwoThousandTwentyFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_ConversionOf2012OPPUnitsAndMYLTIPSMember" abstract="true" name="ConversionOf2012OPPUnitsAndMYLTIPSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_MYLTIPMember" abstract="true" name="MYLTIPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_UnvestedMYLTIPDistributionsAsComparedToTotalDistributionsPercentage" abstract="false" name="UnvestedMYLTIPDistributionsAsComparedToTotalDistributionsPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_OutperformanceAwardsLongTermIncentivePlanUnitsDistributionAsPercentageOfOpUnitDistributionPriorToMeasurementDate" abstract="false" name="OutperformanceAwardsLongTermIncentivePlanUnitsDistributionAsPercentageOfOpUnitDistributionPriorToMeasurementDate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <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_ValueOfMyltipAwards" abstract="false" name="ValueOfMyltipAwards" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_RestrictionOnRedemption" abstract="false" name="RestrictionOnRedemption" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_OpUnitEquivalenceToCommonStock" abstract="false" name="OpUnitEquivalenceToCommonStock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_MinorityInterestMember" abstract="true" name="MinorityInterestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_SeriesBCumulativeRedeemablePreferredStockUnitMember" abstract="true" name="SeriesBCumulativeRedeemablePreferredStockUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_DepositorySharesOfSeriesBCumulativeRedeemablePreferredMember" abstract="true" name="DepositorySharesOfSeriesBCumulativeRedeemablePreferredMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_AtMarketStockOfferingProgramAggregateValueOfCommonStock" abstract="false" name="AtMarketStockOfferingProgramAggregateValueOfCommonStock" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_AtMarketStockOfferingProgramMaximumLengthOfSaleinyears" abstract="false" name="AtMarketStockOfferingProgramMaximumLengthOfSaleinyears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_StockholdersEquityPartnerCapitalAbstract" abstract="true" name="StockholdersEquityPartnerCapitalAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <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_RentalRevenueTotal" abstract="false" name="RentalRevenueTotal" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_BostonMember" abstract="true" name="BostonMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_LosAngelesMember" abstract="true" name="LosAngelesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_SeattleMember" abstract="true" name="SeattleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_RentalRevenueOffice" abstract="false" name="RentalRevenueOffice" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PercentageOfTotalRevenue" abstract="false" name="PercentageOfTotalRevenue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_RentalExpensesOffice" abstract="false" name="RentalExpensesOffice" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_RentalExpensesResidential" abstract="false" name="RentalExpensesResidential" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bxp_RentalExpensesOperatingExpensesTotal" abstract="false" name="RentalExpensesOperatingExpensesTotal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_PercentageOfTotalNetOperatingIncome" abstract="false" name="PercentageOfTotalNetOperatingIncome" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_PercentageofCompanysShareofNetOperatingIncome" abstract="false" name="PercentageofCompanysShareofNetOperatingIncome" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bxp_RedeemableCommonUnits" abstract="false" name="RedeemableCommonUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_Allocationofundistributedearningstoparticipatingsecuritiesinshares" abstract="false" name="Allocationofundistributedearningstoparticipatingsecuritiesinshares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="bxp_Allocationofundistributedearningstoparticipatingsecuritiespershares" abstract="false" name="Allocationofundistributedearningstoparticipatingsecuritiespershares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <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_WeightedAverageNumberOfSharesOutstandingAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasicinshares" abstract="false" name="WeightedAverageNumberOfSharesOutstandingAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasicinshares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <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_StockOptionAndIncentivePlanAndStockRepurchasePlanAxis" abstract="true" name="StockOptionAndIncentivePlanAndStockRepurchasePlanAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <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_UnvestedRestrictedstockandLTIPUnitsMember" abstract="true" name="UnvestedRestrictedstockandLTIPUnitsMember" 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_LTIPand2014MYLTIPUnitsMember" abstract="true" name="LTIPand2014MYLTIPUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bxp_StockOptionExercisedMember" abstract="true" name="StockOptionExercisedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_ValueOfLtipUnitsIssued" abstract="false" name="ValueOfLtipUnitsIssued" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_NumberOfBusinessDaysAverageClosingPrice" abstract="false" name="NumberOfBusinessDaysAverageClosingPrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAnnualInstallmentsForVesting" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAnnualInstallmentsForVesting" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bxp_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedTarget" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedTarget" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
</xs:schema>
