"You are an auditor for XBRL filings. \nGiven two concepts and the provided filing (schema, presentation, calculation, definition, label, instance, and US GAAP taxonomy),\ndetermine which one of the following erroneous relationship types best describes the relationship between the two concepts:\n\n(1) Reversal  \n    Definition: A relationship is flagged as Reversal when the filer\u2019s extension taxonomy redefines element hierarchy inconsistently with the US GAAP taxonomy. Specifically, this occurs when an element that should be a sibling in the US GAAP taxonomy is instead defined as a child of another element (or vice versa, a child element is incorrectly redefined as a sibling).\n\n(2) Inappropriateness  \n    Definition: A relationship is flagged as Inappropriateness when elements appear under an abstract category where they do not belong, contrary to the US GAAP taxonomy.\n\n(3) CombinationErr  \n    Definition: A relationship is flagged as CombinationErr when an axis in the filer\u2019s extension taxonomy is associated with inappropriate members not permitted by the US GAAP taxonomy.\n\nYou must reference the US GAAP taxonomy to retrieve and check the two concepts across the entire filing.\nOutput only one of the following labels exactly, chosen strictly from:\n[\"Reversal\", \"Inappropriateness\", \"CombinationErr\"].\n\nNo explanations. No extra text. Only the label.\n\n    \n##Schema document\nNone\n\n##Presentation linkbase document\n<?xml version='1.0' encoding='US-ASCII'?>\n<link:linkbase xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:roleRef roleURI=\"http://www.bxp.com/role/RealEstateNarrativeDetails\" xlink:type=\"simple\" xlink:href=\"bxp-20240930.xsd#RealEstateNarrativeDetails\"/>\n  <link:presentationLink xlink:role=\"http://www.bxp.com/role/RealEstateNarrativeDetails\" xlink:type=\"extended\">\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_RealEstateAbstract_46f68ceb-6174-4e00-81f4-e45d6a4a11c0\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RealEstateAbstract\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRealEstatePropertiesTable\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstateAbstract_46f68ceb-6174-4e00-81f4-e45d6a4a11c0\" xlink:to=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_19139f6e-86f0-4789-aa68-b47efe6270d9\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_19139f6e-86f0-4789-aa68-b47efe6270d9\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_19139f6e-86f0-4789-aa68-b47efe6270d9\" xlink:to=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_NineZeroOneNewYorkAvenueMember_f8cb84af-2a8c-440a-9ccb-582b2212913c\" xlink:href=\"bxp-20240930.xsd#bxp_NineZeroOneNewYorkAvenueMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:to=\"loc_bxp_NineZeroOneNewYorkAvenueMember_f8cb84af-2a8c-440a-9ccb-582b2212913c\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_OneTwoOneBroadwayMember_aa221438-2881-45ca-bc91-d6b4bc786954\" xlink:href=\"bxp-20240930.xsd#bxp_OneTwoOneBroadwayMember\"/>\n    <link:presentationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:to=\"loc_bxp_OneTwoOneBroadwayMember_aa221438-2881-45ca-bc91-d6b4bc786954\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_SevenSixZeroBoylstonStreetMember_8fe82af2-ced1-4591-a296-f0c8019685bd\" xlink:href=\"bxp-20240930.xsd#bxp_SevenSixZeroBoylstonStreetMember\"/>\n    <link:presentationArc order=\"3\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:to=\"loc_bxp_SevenSixZeroBoylstonStreetMember_8fe82af2-ced1-4591-a296-f0c8019685bd\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_RestonNextOfficePhaseIIMember_11ce0ff2-5c04-4cca-ab85-e585707fe131\" xlink:href=\"bxp-20240930.xsd#bxp_RestonNextOfficePhaseIIMember\"/>\n    <link:presentationArc order=\"4\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:to=\"loc_bxp_RestonNextOfficePhaseIIMember_11ce0ff2-5c04-4cca-ab85-e585707fe131\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_OneEightZeroCityPointMember_f0987bdf-fbf4-4905-be6d-139797fbef18\" xlink:href=\"bxp-20240930.xsd#bxp_OneEightZeroCityPointMember\"/>\n    <link:presentationArc order=\"5\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:to=\"loc_bxp_OneEightZeroCityPointMember_f0987bdf-fbf4-4905-be6d-139797fbef18\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ShadyGroveInnovationDistrictMember_0547c640-fc61-4a09-8a17-4d4cddfbcbd9\" xlink:href=\"bxp-20240930.xsd#bxp_ShadyGroveInnovationDistrictMember\"/>\n    <link:presentationArc order=\"6\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:to=\"loc_bxp_ShadyGroveInnovationDistrictMember_0547c640-fc61-4a09-8a17-4d4cddfbcbd9\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_39e100df-90fa-47c5-abb2-6ede25a18879\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis\"/>\n    <link:presentationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_39e100df-90fa-47c5-abb2-6ede25a18879\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_afa08b3c-c024-4353-8de3-82e4be0150f3\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_39e100df-90fa-47c5-abb2-6ede25a18879\" xlink:to=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_afa08b3c-c024-4353-8de3-82e4be0150f3\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ConstructionInProgressMember_1f552b00-5ff8-4623-91ee-1ab7bf22e2b1\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConstructionInProgressMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_afa08b3c-c024-4353-8de3-82e4be0150f3\" xlink:to=\"loc_us-gaap_ConstructionInProgressMember_1f552b00-5ff8-4623-91ee-1ab7bf22e2b1\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipAxis_2e4bcd4f-a70a-4675-90a5-ad56a1906dd1\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipAxis\"/>\n    <link:presentationArc order=\"3\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_srt_OwnershipAxis_2e4bcd4f-a70a-4675-90a5-ad56a1906dd1\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipDomain_b2c91ff3-e837-4606-8a91-7c0a6c66b3a9\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_OwnershipAxis_2e4bcd4f-a70a-4675-90a5-ad56a1906dd1\" xlink:to=\"loc_srt_OwnershipDomain_b2c91ff3-e837-4606-8a91-7c0a6c66b3a9\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_JointVenturePartnerMember_b8eca39a-489f-4822-9b23-596c7b581d48\" xlink:href=\"bxp-20240930.xsd#bxp_JointVenturePartnerMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_OwnershipDomain_b2c91ff3-e837-4606-8a91-7c0a6c66b3a9\" xlink:to=\"loc_bxp_JointVenturePartnerMember_b8eca39a-489f-4822-9b23-596c7b581d48\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_CompanysShareMember_64e56fbe-9d21-4d7b-a247-5cff0a50cd68\" xlink:href=\"bxp-20240930.xsd#bxp_CompanysShareMember\"/>\n    <link:presentationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_OwnershipDomain_b2c91ff3-e837-4606-8a91-7c0a6c66b3a9\" xlink:to=\"loc_bxp_CompanysShareMember_64e56fbe-9d21-4d7b-a247-5cff0a50cd68\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestMember_a684e962-2fd8-4827-8612-e7729f463f49\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncontrollingInterestMember\"/>\n    <link:presentationArc order=\"3\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_OwnershipDomain_b2c91ff3-e837-4606-8a91-7c0a6c66b3a9\" xlink:to=\"loc_us-gaap_NoncontrollingInterestMember_a684e962-2fd8-4827-8612-e7729f463f49\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LongtermDebtTypeAxis_18a82eea-6420-48b3-8efe-73d1a29de6b4\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis\"/>\n    <link:presentationArc order=\"4\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_us-gaap_LongtermDebtTypeAxis_18a82eea-6420-48b3-8efe-73d1a29de6b4\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LongtermDebtTypeDomain_b6109e87-5c3b-47a9-9b79-04254abf936d\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_LongtermDebtTypeAxis_18a82eea-6420-48b3-8efe-73d1a29de6b4\" xlink:to=\"loc_us-gaap_LongtermDebtTypeDomain_b6109e87-5c3b-47a9-9b79-04254abf936d\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MortgagesMember_b1901b2e-faf1-4a50-b2bd-3a795d1429b2\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MortgagesMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_LongtermDebtTypeDomain_b6109e87-5c3b-47a9-9b79-04254abf936d\" xlink:to=\"loc_us-gaap_MortgagesMember_b1901b2e-faf1-4a50-b2bd-3a795d1429b2\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4032b1b9-0bbf-4258-93ff-9418daef0817\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis\"/>\n    <link:presentationArc order=\"5\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4032b1b9-0bbf-4258-93ff-9418daef0817\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_EquityMethodInvesteeNameDomain_9dc63baa-fd72-43c9-acd1-685fff0a4276\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_EquityMethodInvesteeNameDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4032b1b9-0bbf-4258-93ff-9418daef0817\" xlink:to=\"loc_srt_EquityMethodInvesteeNameDomain_9dc63baa-fd72-43c9-acd1-685fff0a4276\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_SantaMonicaBusinessParkMember_e0e5c9f4-96c7-4585-ba57-e7fcc03f82ab\" xlink:href=\"bxp-20240930.xsd#bxp_SantaMonicaBusinessParkMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_EquityMethodInvesteeNameDomain_9dc63baa-fd72-43c9-acd1-685fff0a4276\" xlink:to=\"loc_bxp_SantaMonicaBusinessParkMember_e0e5c9f4-96c7-4585-ba57-e7fcc03f82ab\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_BpCrfNineZeroOneNewYorkAvenueLlcMember_67a87f69-af75-4573-a9fd-4d344b60a407\" xlink:href=\"bxp-20240930.xsd#bxp_BpCrfNineZeroOneNewYorkAvenueLlcMember\"/>\n    <link:presentationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_EquityMethodInvesteeNameDomain_9dc63baa-fd72-43c9-acd1-685fff0a4276\" xlink:to=\"loc_bxp_BpCrfNineZeroOneNewYorkAvenueLlcMember_67a87f69-af75-4573-a9fd-4d344b60a407\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_18a918c4-bf20-4572-b731-9c4912d6438f\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\"/>\n    <link:presentationArc order=\"6\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_18a918c4-bf20-4572-b731-9c4912d6438f\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_9a20e72e-77ac-4ca9-b47d-217ab7882f69\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_18a918c4-bf20-4572-b731-9c4912d6438f\" xlink:to=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_9a20e72e-77ac-4ca9-b47d-217ab7882f69\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ResidentialRealEstateMember_96726fc4-bb4b-4bc7-a6f7-bb6ebbdd4503\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ResidentialRealEstateMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_9a20e72e-77ac-4ca9-b47d-217ab7882f69\" xlink:to=\"loc_us-gaap_ResidentialRealEstateMember_96726fc4-bb4b-4bc7-a6f7-bb6ebbdd4503\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_RealEstatePropertiesAxis_aaa069b1-b939-415f-bb84-d3e276f240a7\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RealEstatePropertiesAxis\"/>\n    <link:presentationArc order=\"7\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_us-gaap_RealEstatePropertiesAxis_aaa069b1-b939-415f-bb84-d3e276f240a7\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_RealEstatePropertiesDomain_d328ac4c-ca06-48da-9c4c-672b83978bb0\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RealEstatePropertiesDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesAxis_aaa069b1-b939-415f-bb84-d3e276f240a7\" xlink:to=\"loc_us-gaap_RealEstatePropertiesDomain_d328ac4c-ca06-48da-9c4c-672b83978bb0\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_UnconsolidatedPropertiesMember_292961bd-2d9d-4452-95a0-6ad7c010acff\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UnconsolidatedPropertiesMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesDomain_d328ac4c-ca06-48da-9c4c-672b83978bb0\" xlink:to=\"loc_us-gaap_UnconsolidatedPropertiesMember_292961bd-2d9d-4452-95a0-6ad7c010acff\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RealEstatePropertiesLineItems\"/>\n    <link:presentationArc order=\"8\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_d26a63b4-c176-4c6d-8d7b-1e3fb859f318\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_d26a63b4-c176-4c6d-8d7b-1e3fb859f318\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LandSubjectToGroundLeases_3860dbbd-092c-4744-8927-0d41927b5be5\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LandSubjectToGroundLeases\"/>\n    <link:presentationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_LandSubjectToGroundLeases_3860dbbd-092c-4744-8927-0d41927b5be5\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetRentableArea_88d049a3-d3de-4de2-b44e-c7c5d9a93c26\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetRentableArea\"/>\n    <link:presentationArc order=\"3\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_NetRentableArea_88d049a3-d3de-4de2-b44e-c7c5d9a93c26\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LesseeFinanceLeaseRemainingLeaseTerm_f65d6f9e-37ed-4fb8-a5cc-73a5ac86ebec\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeFinanceLeaseRemainingLeaseTerm\"/>\n    <link:presentationArc order=\"4\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_LesseeFinanceLeaseRemainingLeaseTerm_f65d6f9e-37ed-4fb8-a5cc-73a5ac86ebec\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_DebtInstrumentCarryingAmount_bd4656fd-3190-4b49-961b-06ba824040c0\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentCarryingAmount\"/>\n    <link:presentationArc order=\"5\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_DebtInstrumentCarryingAmount_bd4656fd-3190-4b49-961b-06ba824040c0\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PaymentsToAcquireInvestments_24a12d4a-23f0-4e38-a3d1-68669f8a4e81\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireInvestments\"/>\n    <link:presentationArc order=\"6\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_PaymentsToAcquireInvestments_24a12d4a-23f0-4e38-a3d1-68669f8a4e81\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_CashAcquiredFromAcquisition_b3ebb9ac-03b8-44ff-8084-15123d2ef16a\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAcquiredFromAcquisition\"/>\n    <link:presentationArc order=\"7\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_CashAcquiredFromAcquisition_b3ebb9ac-03b8-44ff-8084-15123d2ef16a\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_RealEstateInvestmentsJointVentures_f82e234c-1b3b-45ac-ae1b-2dcdca3ae826\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RealEstateInvestmentsJointVentures\"/>\n    <link:presentationArc order=\"8\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_RealEstateInvestmentsJointVentures_f82e234c-1b3b-45ac-ae1b-2dcdca3ae826\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_7cdc2299-8707-476a-83ac-2c92aa0774e9\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal\"/>\n    <link:presentationArc order=\"9\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_7cdc2299-8707-476a-83ac-2c92aa0774e9\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_Revenues_21359409-7dda-4703-bd53-d2170b8c8469\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Revenues\"/>\n    <link:presentationArc order=\"10\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_Revenues_21359409-7dda-4703-bd53-d2170b8c8469\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetIncomeLoss_c0cf98a3-16c4-44ef-b4de-33e7e53e9800\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss\"/>\n    <link:presentationArc order=\"11\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_NetIncomeLoss_c0cf98a3-16c4-44ef-b4de-33e7e53e9800\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/verboseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_82b51515-9ec3-431c-9853-1439bee261d9\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures\"/>\n    <link:presentationArc order=\"12\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_82b51515-9ec3-431c-9853-1439bee261d9\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure_fe22b50a-ae1e-413f-9b42-6f04911147d0\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure\"/>\n    <link:presentationArc order=\"13\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesFairValueDisclosure_fe22b50a-ae1e-413f-9b42-6f04911147d0\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NumberOfUnitsInRealEstateProperty_8018cadf-b957-476e-a454-346c1c95b234\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NumberOfUnitsInRealEstateProperty\"/>\n    <link:presentationArc order=\"14\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_NumberOfUnitsInRealEstateProperty_8018cadf-b957-476e-a454-346c1c95b234\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_AssetAcquisitionConsiderationTransferred_a8c1771c-09bf-47dd-9541-def69e7b367f\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetAcquisitionConsiderationTransferred\"/>\n    <link:presentationArc order=\"15\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_AssetAcquisitionConsiderationTransferred_a8c1771c-09bf-47dd-9541-def69e7b367f\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1_ee6080af-ca02-4e20-b414-c3829608cd84\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1\"/>\n    <link:presentationArc order=\"16\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1_ee6080af-ca02-4e20-b414-c3829608cd84\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ImpairmentOfRealEstate_b6546c3f-1616-4d5a-98e6-3dbae5f5bae0\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfRealEstate\"/>\n    <link:presentationArc order=\"17\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_ImpairmentOfRealEstate_b6546c3f-1616-4d5a-98e6-3dbae5f5bae0\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NumberOfRealEstateProperties_8dab41e1-ec08-46f2-b393-b3206a3af595\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NumberOfRealEstateProperties\"/>\n    <link:presentationArc order=\"18\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_NumberOfRealEstateProperties_8dab41e1-ec08-46f2-b393-b3206a3af595\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ContractualSalesPrice_1783fd2f-7334-47d2-8d14-d1f9ebe8797e\" xlink:href=\"bxp-20240930.xsd#bxp_ContractualSalesPrice\"/>\n    <link:presentationArc order=\"19\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_bxp_ContractualSalesPrice_1783fd2f-7334-47d2-8d14-d1f9ebe8797e\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ProceedsFromDepositsOnRealEstateSales_4fd4691d-452f-485f-b848-6f34a43b5508\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromDepositsOnRealEstateSales\"/>\n    <link:presentationArc order=\"20\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_ProceedsFromDepositsOnRealEstateSales_4fd4691d-452f-485f-b848-6f34a43b5508\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n  </link:presentationLink>\n  </link:linkbase>\n\n\n##Calculation linkbase document\n<?xml version='1.0' encoding='US-ASCII'?>\n<link:linkbase xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"/>\n\n\n##Definition linkbase document\n<?xml version='1.0' encoding='US-ASCII'?>\n<link:linkbase xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xbrldt=\"http://xbrl.org/2005/xbrldt\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/all\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#all\"/>\n  <link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension\"/>\n  <link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/dimension-default\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default\"/>\n  <link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain\"/>\n  <link:arcroleRef arcroleURI=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member\"/>\n  <link:roleRef roleURI=\"http://www.bxp.com/role/RealEstateNarrativeDetails\" xlink:type=\"simple\" xlink:href=\"bxp-20240930.xsd#RealEstateNarrativeDetails\"/>\n  <link:definitionLink xlink:role=\"http://www.bxp.com/role/RealEstateNarrativeDetails\" xlink:type=\"extended\">\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RealEstatePropertiesLineItems\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRealEstatePropertiesTable\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/all\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:type=\"arc\" order=\"1\" xbrldt:closed=\"true\" xbrldt:contextElement=\"segment\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_19139f6e-86f0-4789-aa68-b47efe6270d9\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\" xlink:from=\"loc_us-gaap_ScheduleOfRealEstatePropertiesTable_8af9bce6-221d-429c-8c42-6b590659d324\" xlink:to=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_19139f6e-86f0-4789-aa68-b47efe6270d9\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_19139f6e-86f0-4789-aa68-b47efe6270d9_default\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-default\" 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xlink:label=\"loc_bxp_NineZeroOneNewYorkAvenueMember_f8cb84af-2a8c-440a-9ccb-582b2212913c\" xlink:href=\"bxp-20240930.xsd#bxp_NineZeroOneNewYorkAvenueMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:to=\"loc_bxp_NineZeroOneNewYorkAvenueMember_f8cb84af-2a8c-440a-9ccb-582b2212913c\" xlink:type=\"arc\" order=\"0\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_OneTwoOneBroadwayMember_aa221438-2881-45ca-bc91-d6b4bc786954\" xlink:href=\"bxp-20240930.xsd#bxp_OneTwoOneBroadwayMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_8abac150-32cc-4b75-8cd9-ab225053c1f8\" xlink:to=\"loc_bxp_OneTwoOneBroadwayMember_aa221438-2881-45ca-bc91-d6b4bc786954\" xlink:type=\"arc\" order=\"1\"/>\n    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xlink:label=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_9a20e72e-77ac-4ca9-b47d-217ab7882f69\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_18a918c4-bf20-4572-b731-9c4912d6438f\" xlink:to=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_9a20e72e-77ac-4ca9-b47d-217ab7882f69\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ResidentialRealEstateMember_96726fc4-bb4b-4bc7-a6f7-bb6ebbdd4503\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ResidentialRealEstateMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" 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xlink:label=\"loc_us-gaap_UnconsolidatedPropertiesMember_292961bd-2d9d-4452-95a0-6ad7c010acff\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UnconsolidatedPropertiesMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_RealEstatePropertiesDomain_d328ac4c-ca06-48da-9c4c-672b83978bb0\" xlink:to=\"loc_us-gaap_UnconsolidatedPropertiesMember_292961bd-2d9d-4452-95a0-6ad7c010acff\" xlink:type=\"arc\" order=\"0\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_d26a63b4-c176-4c6d-8d7b-1e3fb859f318\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" 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xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromDepositsOnRealEstateSales\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_RealEstatePropertiesLineItems_01eed1af-cdf9-4834-9426-e8edd9ca912b\" xlink:to=\"loc_us-gaap_ProceedsFromDepositsOnRealEstateSales_4fd4691d-452f-485f-b848-6f34a43b5508\" xlink:type=\"arc\" order=\"19\"/>\n  </link:definitionLink>\n  </link:linkbase>\n\n\n##Label linkbase document\n<?xml version='1.0' encoding='UTF-8'?>\n<link:linkbase xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd\"><link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedPeriodStartLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/netLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedNetLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedTerseLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedPeriodEndLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel\"/>\n  <link:roleRef roleURI=\"http://www.xbrl.org/2009/role/negatedTotalLabel\" xlink:type=\"simple\" xlink:href=\"http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel\"/>\n  <link:labelLink xlink:role=\"http://www.xbrl.org/2003/role/link\" xlink:type=\"extended\"><link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember\" xlink:href=\"bxp-20240930.xsd#bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember\" xlink:to=\"lab_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember_1c584b9e-8d87-43e2-be12-2f7919215716_terseLabel_en-US\" xlink:label=\"lab_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">3.350% unsecured senior notes</link:label>\n    <link:label id=\"lab_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember_label_en-US\" xlink:label=\"lab_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Three point three five zero percent unsecured senior notes [Member]</link:label>\n    <link:label id=\"lab_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember_documentation_en-US\" xlink:label=\"lab_bxp_ThreePointThreeFiveZeroPercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">3.350% unsecured senior notes</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember\" xlink:href=\"bxp-20240930.xsd#bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember\" xlink:to=\"lab_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember_83835360-f134-4a60-a464-5037475aa3fb_terseLabel_en-US\" xlink:label=\"lab_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">3.495% unsecured senior notes</link:label>\n    <link:label id=\"lab_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember_label_en-US\" xlink:label=\"lab_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Three point four nine five percent unsecured senior notes [Member]</link:label>\n    <link:label id=\"lab_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember_documentation_en-US\" xlink:label=\"lab_bxp_ThreePointFourNineFivePercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">3.495% unsecured senior notes</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_OneTwoSixFiveMainOfficeJVLLCMember\" xlink:href=\"bxp-20240930.xsd#bxp_OneTwoSixFiveMainOfficeJVLLCMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_OneTwoSixFiveMainOfficeJVLLCMember\" xlink:to=\"lab_bxp_OneTwoSixFiveMainOfficeJVLLCMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_OneTwoSixFiveMainOfficeJVLLCMember_b2171153-fd0c-493b-a93d-1a89024039a8_terseLabel_en-US\" xlink:label=\"lab_bxp_OneTwoSixFiveMainOfficeJVLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">1265 Main Office JV LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_OneTwoSixFiveMainOfficeJVLLCMember_label_en-US\" xlink:label=\"lab_bxp_OneTwoSixFiveMainOfficeJVLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">One Two Six Five Main Office JV LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_OneTwoSixFiveMainOfficeJVLLCMember_documentation_en-US\" xlink:label=\"lab_bxp_OneTwoSixFiveMainOfficeJVLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">1265 Main Office JV LLC [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_CompanysShareMember\" xlink:href=\"bxp-20240930.xsd#bxp_CompanysShareMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_CompanysShareMember\" xlink:to=\"lab_bxp_CompanysShareMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_CompanysShareMember_8cfdcc2a-7045-405e-b002-2f0b6a184900_terseLabel_en-US\" xlink:label=\"lab_bxp_CompanysShareMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Company's Share [Member]</link:label>\n    <link:label id=\"lab_bxp_CompanysShareMember_label_en-US\" xlink:label=\"lab_bxp_CompanysShareMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Company's Share [Member]</link:label>\n    <link:label id=\"lab_bxp_CompanysShareMember_documentation_en-US\" xlink:label=\"lab_bxp_CompanysShareMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Company's Share [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipDomain\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipDomain\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_OwnershipDomain\" xlink:to=\"lab_srt_OwnershipDomain\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_OwnershipDomain_bb9f5f83-bed0-469f-aac8-58c86141fc3e_terseLabel_en-US\" xlink:label=\"lab_srt_OwnershipDomain\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Ownership [Domain]</link:label>\n    <link:label id=\"lab_srt_OwnershipDomain_label_en-US\" xlink:label=\"lab_srt_OwnershipDomain\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Ownership [Domain]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_EquityMethodInvestmentOwnershipPercentage\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_EquityMethodInvestmentOwnershipPercentage\" xlink:to=\"lab_us-gaap_EquityMethodInvestmentOwnershipPercentage\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_23a207ca-3a58-443a-aceb-31aaaef77688_terseLabel_en-US\" xlink:label=\"lab_us-gaap_EquityMethodInvestmentOwnershipPercentage\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Ownership Percentage</link:label>\n    <link:label id=\"lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_label_en-US\" xlink:label=\"lab_us-gaap_EquityMethodInvestmentOwnershipPercentage\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Equity Method Investment, Ownership Percentage</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_OneEightZeroCityPointMember\" xlink:href=\"bxp-20240930.xsd#bxp_OneEightZeroCityPointMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_OneEightZeroCityPointMember\" xlink:to=\"lab_bxp_OneEightZeroCityPointMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_OneEightZeroCityPointMember_7301675d-1bf6-4299-a2dc-f507911ac072_terseLabel_en-US\" xlink:label=\"lab_bxp_OneEightZeroCityPointMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">180 CityPoint [Member]</link:label>\n    <link:label id=\"lab_bxp_OneEightZeroCityPointMember_label_en-US\" xlink:label=\"lab_bxp_OneEightZeroCityPointMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">One Eight Zero CityPoint [Member]</link:label>\n    <link:label id=\"lab_bxp_OneEightZeroCityPointMember_documentation_en-US\" xlink:label=\"lab_bxp_OneEightZeroCityPointMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">One Eight Zero CityPoint</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember\" xlink:href=\"bxp-20240930.xsd#bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember\" xlink:to=\"lab_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember_3e9c6503-caed-4a36-8f78-aa41466da706_terseLabel_en-US\" xlink:label=\"lab_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">3.766% unsecured senior notes</link:label>\n    <link:label id=\"lab_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember_label_en-US\" xlink:label=\"lab_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Three point seven six six percent unsecured senior notes [Member]</link:label>\n    <link:label id=\"lab_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember_documentation_en-US\" xlink:label=\"lab_bxp_ThreePointSevenSixSixPercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">3.766% unsecured senior notes</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_CommercialRealEstateMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommercialRealEstateMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_CommercialRealEstateMember\" xlink:to=\"lab_us-gaap_CommercialRealEstateMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_CommercialRealEstateMember_66be36e0-5fae-4ae7-87a9-fd3d68fec735_terseLabel_en-US\" xlink:label=\"lab_us-gaap_CommercialRealEstateMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Commercial Real Estate Properties [Member]</link:label>\n    <link:label id=\"lab_us-gaap_CommercialRealEstateMember_label_en-US\" xlink:label=\"lab_us-gaap_CommercialRealEstateMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Commercial Real Estate [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_UnconsolidatedPropertiesMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UnconsolidatedPropertiesMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_UnconsolidatedPropertiesMember\" xlink:to=\"lab_us-gaap_UnconsolidatedPropertiesMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_UnconsolidatedPropertiesMember_2545887b-7b4e-405d-859e-477f853bba12_terseLabel_en-US\" xlink:label=\"lab_us-gaap_UnconsolidatedPropertiesMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Unconsolidated Properties</link:label>\n    <link:label id=\"lab_us-gaap_UnconsolidatedPropertiesMember_label_en-US\" xlink:label=\"lab_us-gaap_UnconsolidatedPropertiesMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Unconsolidated Properties [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_SeniorNotesMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_SeniorNotesMember\" xlink:to=\"lab_us-gaap_SeniorNotesMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_SeniorNotesMember_2080a68a-0eba-40be-912a-4bc15ff48771_terseLabel_en-US\" xlink:label=\"lab_us-gaap_SeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Senior Notes</link:label>\n    <link:label id=\"lab_us-gaap_SeniorNotesMember_label_en-US\" xlink:label=\"lab_us-gaap_SeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Senior Notes [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_SubsequentEventMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_SubsequentEventMember\" xlink:to=\"lab_us-gaap_SubsequentEventMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_SubsequentEventMember_5cc8777a-d421-4b4e-bde1-5352bc0c8a34_terseLabel_en-US\" xlink:label=\"lab_us-gaap_SubsequentEventMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Subsequent Event [Member]</link:label>\n    <link:label id=\"lab_us-gaap_SubsequentEventMember_label_en-US\" xlink:label=\"lab_us-gaap_SubsequentEventMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Subsequent Event [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MetropolitanSquareMember\" xlink:href=\"bxp-20240930.xsd#bxp_MetropolitanSquareMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_MetropolitanSquareMember\" xlink:to=\"lab_bxp_MetropolitanSquareMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_MetropolitanSquareMember_74ecd4ca-a267-4ace-8cfb-e226dba59dd3_terseLabel_en-US\" xlink:label=\"lab_bxp_MetropolitanSquareMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Metropolitan Square</link:label>\n    <link:label id=\"lab_bxp_MetropolitanSquareMember_label_en-US\" xlink:label=\"lab_bxp_MetropolitanSquareMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Metropolitan Square [Member]</link:label>\n    <link:label id=\"lab_bxp_MetropolitanSquareMember_documentation_en-US\" xlink:label=\"lab_bxp_MetropolitanSquareMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Metropolitan Square</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_TwoZeroZeroFifthAvenueJVLLCMember\" xlink:href=\"bxp-20240930.xsd#bxp_TwoZeroZeroFifthAvenueJVLLCMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_TwoZeroZeroFifthAvenueJVLLCMember\" xlink:to=\"lab_bxp_TwoZeroZeroFifthAvenueJVLLCMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_TwoZeroZeroFifthAvenueJVLLCMember_583d023d-d21e-40ca-ba8b-da4dd5efb752_terseLabel_en-US\" xlink:label=\"lab_bxp_TwoZeroZeroFifthAvenueJVLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">200 Fifth Avenue JV LLC</link:label>\n    <link:label id=\"lab_bxp_TwoZeroZeroFifthAvenueJVLLCMember_label_en-US\" xlink:label=\"lab_bxp_TwoZeroZeroFifthAvenueJVLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Two Zero Zero Fifth Avenue JV LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_TwoZeroZeroFifthAvenueJVLLCMember_documentation_en-US\" xlink:label=\"lab_bxp_TwoZeroZeroFifthAvenueJVLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Two Zero Zero Fifth Avenue JV LLC</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_FivezerooneKStreetLLCMember\" xlink:href=\"bxp-20240930.xsd#bxp_FivezerooneKStreetLLCMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_FivezerooneKStreetLLCMember\" xlink:to=\"lab_bxp_FivezerooneKStreetLLCMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_FivezerooneKStreetLLCMember_9f3f6fa7-34fd-4843-87e7-2a19328f4876_terseLabel_en-US\" xlink:label=\"lab_bxp_FivezerooneKStreetLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">501 K Street LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_FivezerooneKStreetLLCMember_label_en-US\" xlink:label=\"lab_bxp_FivezerooneKStreetLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">five zero one K Street LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_FivezerooneKStreetLLCMember_documentation_en-US\" xlink:label=\"lab_bxp_FivezerooneKStreetLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">501 K Street LLC [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_RestonNextOfficePhaseIIMember\" xlink:href=\"bxp-20240930.xsd#bxp_RestonNextOfficePhaseIIMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_RestonNextOfficePhaseIIMember\" xlink:to=\"lab_bxp_RestonNextOfficePhaseIIMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_RestonNextOfficePhaseIIMember_fd579ad7-f455-48ce-aa04-b0ed123e1eb2_terseLabel_en-US\" xlink:label=\"lab_bxp_RestonNextOfficePhaseIIMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Reston Next Office Phase II</link:label>\n    <link:label id=\"lab_bxp_RestonNextOfficePhaseIIMember_label_en-US\" xlink:label=\"lab_bxp_RestonNextOfficePhaseIIMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Reston Next Office Phase II [Member]</link:label>\n    <link:label id=\"lab_bxp_RestonNextOfficePhaseIIMember_documentation_en-US\" xlink:label=\"lab_bxp_RestonNextOfficePhaseIIMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Reston Next Office Phase II</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RetailSiteMember\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RetailSiteMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_RetailSiteMember\" xlink:to=\"lab_srt_RetailSiteMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_RetailSiteMember_cf03ea33-a8b9-4cee-86ab-f5c0c5bffe0f_terseLabel_en-US\" xlink:label=\"lab_srt_RetailSiteMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Retail Site [Member]</link:label>\n    <link:label id=\"lab_srt_RetailSiteMember_label_en-US\" xlink:label=\"lab_srt_RetailSiteMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Retail Site [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember\" xlink:href=\"bxp-20240930.xsd#bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember\" xlink:to=\"lab_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember_f2b6f3c5-62ce-481b-bee0-e48db34d7be2_terseLabel_en-US\" xlink:label=\"lab_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">360 PAS Holdco LLC (indirect ownership)</link:label>\n    <link:label id=\"lab_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember_label_en-US\" xlink:label=\"lab_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Three Six Zero PAS Holdco LLC (indirect ownership) [Member]</link:label>\n    <link:label id=\"lab_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember_documentation_en-US\" xlink:label=\"lab_bxp_ThreeSixZeroPASHoldcoLLCIndirectOwnershipMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Three Six Zero PAS Holdco LLC (indirect ownership)</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipAxis\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_OwnershipAxis\" xlink:to=\"lab_srt_OwnershipAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_OwnershipAxis_fe16a201-0163-48ff-94ed-8a85a2ad42da_terseLabel_en-US\" xlink:label=\"lab_srt_OwnershipAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Ownership [Axis]</link:label>\n    <link:label id=\"lab_srt_OwnershipAxis_label_en-US\" xlink:label=\"lab_srt_OwnershipAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Ownership [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_PodiumDeveloperLLCMember\" xlink:href=\"bxp-20240930.xsd#bxp_PodiumDeveloperLLCMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_PodiumDeveloperLLCMember\" xlink:to=\"lab_bxp_PodiumDeveloperLLCMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_PodiumDeveloperLLCMember_0ba5c407-edad-4dfd-9f87-2be8999cdf15_terseLabel_en-US\" xlink:label=\"lab_bxp_PodiumDeveloperLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Podium Developer LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_PodiumDeveloperLLCMember_label_en-US\" xlink:label=\"lab_bxp_PodiumDeveloperLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Podium Developer LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_PodiumDeveloperLLCMember_documentation_en-US\" xlink:label=\"lab_bxp_PodiumDeveloperLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Podium Developer LLC [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LongtermDebtTypeDomain\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_LongtermDebtTypeDomain\" xlink:to=\"lab_us-gaap_LongtermDebtTypeDomain\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_LongtermDebtTypeDomain_c92ce537-5eaf-4beb-8fd3-bf4bfd0fd4ce_terseLabel_en-US\" xlink:label=\"lab_us-gaap_LongtermDebtTypeDomain\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Long-term Debt, Type [Domain]</link:label>\n    <link:label id=\"lab_us-gaap_LongtermDebtTypeDomain_label_en-US\" xlink:label=\"lab_us-gaap_LongtermDebtTypeDomain\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Long-Term Debt, Type [Domain]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ConstructionInProgressMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConstructionInProgressMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ConstructionInProgressMember\" xlink:to=\"lab_us-gaap_ConstructionInProgressMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ConstructionInProgressMember_540a7e9f-bd44-42d5-824c-10f101e3e4be_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ConstructionInProgressMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Construction in Progress</link:label>\n    <link:label id=\"lab_us-gaap_ConstructionInProgressMember_label_en-US\" xlink:label=\"lab_us-gaap_ConstructionInProgressMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Construction in Progress [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_HotelTowerDeveloperLLCMember\" xlink:href=\"bxp-20240930.xsd#bxp_HotelTowerDeveloperLLCMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_HotelTowerDeveloperLLCMember\" xlink:to=\"lab_bxp_HotelTowerDeveloperLLCMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_HotelTowerDeveloperLLCMember_de874e63-9256-4054-83f2-fa90428aac30_terseLabel_en-US\" xlink:label=\"lab_bxp_HotelTowerDeveloperLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Hotel Tower Developer LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_HotelTowerDeveloperLLCMember_label_en-US\" xlink:label=\"lab_bxp_HotelTowerDeveloperLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Hotel Tower Developer LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_HotelTowerDeveloperLLCMember_documentation_en-US\" xlink:label=\"lab_bxp_HotelTowerDeveloperLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Hotel Tower Developer LLC [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_SafecoPlazaREITLLCMember\" xlink:href=\"bxp-20240930.xsd#bxp_SafecoPlazaREITLLCMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_SafecoPlazaREITLLCMember\" xlink:to=\"lab_bxp_SafecoPlazaREITLLCMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_SafecoPlazaREITLLCMember_2ead19bd-a18b-45f3-85c0-eaaa5372e500_terseLabel_en-US\" xlink:label=\"lab_bxp_SafecoPlazaREITLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Safeco Plaza REIT LLC</link:label>\n    <link:label id=\"lab_bxp_SafecoPlazaREITLLCMember_label_en-US\" xlink:label=\"lab_bxp_SafecoPlazaREITLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Safeco Plaza REIT LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_SafecoPlazaREITLLCMember_documentation_en-US\" xlink:label=\"lab_bxp_SafecoPlazaREITLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Safeco Plaza REIT LLC</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ABXPWorldgateInvestmentsLLCMember\" xlink:href=\"bxp-20240930.xsd#bxp_ABXPWorldgateInvestmentsLLCMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_ABXPWorldgateInvestmentsLLCMember\" xlink:to=\"lab_bxp_ABXPWorldgateInvestmentsLLCMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_ABXPWorldgateInvestmentsLLCMember_41e6f6eb-ea4b-417e-b2d2-b82fe825951a_terseLabel_en-US\" xlink:label=\"lab_bxp_ABXPWorldgateInvestmentsLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">ABXP Worldgate Investments LLC</link:label>\n    <link:label id=\"lab_bxp_ABXPWorldgateInvestmentsLLCMember_label_en-US\" xlink:label=\"lab_bxp_ABXPWorldgateInvestmentsLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">ABXP Worldgate Investments LLC [Member]</link:label>\n    <link:label id=\"lab_bxp_ABXPWorldgateInvestmentsLLCMember_documentation_en-US\" xlink:label=\"lab_bxp_ABXPWorldgateInvestmentsLLCMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">ABXP Worldgate Investments LLC</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember\" xlink:href=\"bxp-20240930.xsd#bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember\" xlink:to=\"lab_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember_5d44801c-22df-492e-be66-e4dfddea38e8_terseLabel_en-US\" xlink:label=\"lab_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">3.505% unsecured senior notes</link:label>\n    <link:label id=\"lab_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember_label_en-US\" xlink:label=\"lab_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Three point five zero five percent unsecured senior notes [Member]</link:label>\n    <link:label id=\"lab_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember_documentation_en-US\" xlink:label=\"lab_bxp_ThreePointFiveZeroFivePercentUnsecuredSeniorNotesMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">3.505% unsecured senior notes</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\" xlink:href=\"https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\" xlink:to=\"lab_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_5202d06f-eccf-4711-b2b7-5bf916b9a87e_terseLabel_en-US\" xlink:label=\"lab_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Real Estate [Domain]</link:label>\n    <link:label id=\"lab_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_label_en-US\" xlink:label=\"lab_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Real Estate [Domain]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_LesseeFinanceLeaseRemainingLeaseTerm\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeFinanceLeaseRemainingLeaseTerm\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_LesseeFinanceLeaseRemainingLeaseTerm\" xlink:to=\"lab_us-gaap_LesseeFinanceLeaseRemainingLeaseTerm\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_LesseeFinanceLeaseRemainingLeaseTerm_13a2c135-ce90-4ade-b181-3a94589d5d86_\n\n##Instance document\n<?xml version='1.0' encoding='UTF-8'?>\n<xbrl xmlns=\"http://www.xbrl.org/2003/instance\" xmlns:bxp=\"http://www.bxp.com/20240930\" xmlns:dei=\"http://xbrl.sec.gov/dei/2024\" xmlns:ecd=\"http://xbrl.sec.gov/ecd/2024\" xmlns:iso4217=\"http://www.xbrl.org/2003/iso4217\" xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:srt=\"http://fasb.org/srt/2024\" xmlns:stpr=\"http://xbrl.sec.gov/stpr/2024\" xmlns:us-gaap=\"http://fasb.org/us-gaap/2024\" xmlns:utr=\"http://www.xbrl.org/2009/utr\" xmlns:xbrldi=\"http://xbrl.org/2006/xbrldi\" xmlns:xhtml=\"http://www.w3.org/1999/xhtml\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xml:lang=\"en-US\"><link:schemaRef xlink:href=\"bxp-20240930.xsd\" xlink:type=\"simple\"/>\n\t<context id=\"c-219\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:OwnershipAxis\">bxp:JointVenturePartnerMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"srt:RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\">bxp:NineZeroOneNewYorkAvenueMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember 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scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\">srt:OfficeBuildingMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"srt:RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\">bxp:TwoNineZeroBinneyMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:PropertyPlantAndEquipmentByTypeAxis\">us-gaap:ConstructionInProgressMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2023-01-05</instant>\n        </period>\n    </context>\n\t<context id=\"c-442\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\">srt:OfficeBuildingMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"srt:RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\">bxp:TwoFiveZeroBinneyStreetMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2024-09-30</instant>\n        </period>\n    </context>\n\t<context id=\"c-441\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\">srt:OfficeBuildingMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"srt:RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\">bxp:TwoNineZeroBinneyMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:PropertyPlantAndEquipmentByTypeAxis\">us-gaap:ConstructionInProgressMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2024-09-30</instant>\n        </period>\n    </context>\n\t<context id=\"c-666\">\n        <entity>\n            <identifier scheme=\"http:\n\n##US GAAP Taxonomy\nNone\n\nQuestion: What erroneous relationship type exists between OwnershipAxis and NoncontrollingInterestMember, based on the provided XBRL filing and the US GAAP taxonomy?\nAnswer:\n\n    "

Answer: "CombinationErr"