"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/NoncontrollingInterestsPropertyPartnershipsNarrativeDetails\" xlink:type=\"simple\" xlink:href=\"bxp-20240331.xsd#NoncontrollingInterestsPropertyPartnershipsNarrativeDetails\"/>\n  <link:presentationLink xlink:role=\"http://www.bxp.com/role/NoncontrollingInterestsPropertyPartnershipsNarrativeDetails\" xlink:type=\"extended\">\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestAbstract_75d51031-5f4c-424b-8a09-34e0a9915b0d\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestAbstract\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestTable\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_NoncontrollingInterestAbstract_75d51031-5f4c-424b-8a09-34e0a9915b0d\" xlink:to=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_ba7a6013-33c3-443c-a325-0a9d8228dec9\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c\" xlink:to=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_ba7a6013-33c3-443c-a325-0a9d8228dec9\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_TwoNineZeroBinneyMember_8080455f-bdb9-464a-b930-b66b4350de20\" xlink:href=\"bxp-20240331.xsd#bxp_TwoNineZeroBinneyMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_ba7a6013-33c3-443c-a325-0a9d8228dec9\" xlink:to=\"loc_bxp_TwoNineZeroBinneyMember_8080455f-bdb9-464a-b930-b66b4350de20\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ThreeZeroZeroBinneyStreetMember_a94038e4-8e00-447f-bc55-ba8d35fe0a93\" xlink:href=\"bxp-20240331.xsd#bxp_ThreeZeroZeroBinneyStreetMember\"/>\n    <link:presentationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_ba7a6013-33c3-443c-a325-0a9d8228dec9\" xlink:to=\"loc_bxp_ThreeZeroZeroBinneyStreetMember_a94038e4-8e00-447f-bc55-ba8d35fe0a93\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_StatementEquityComponentsAxis_5c18d809-273f-4589-919c-7f906019b16e\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis\"/>\n    <link:presentationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_us-gaap_StatementEquityComponentsAxis_5c18d809-273f-4589-919c-7f906019b16e\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_EquityComponentDomain_01f181e3-34fa-4f4e-b584-8aa4ac859b3a\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_StatementEquityComponentsAxis_5c18d809-273f-4589-919c-7f906019b16e\" xlink:to=\"loc_us-gaap_EquityComponentDomain_01f181e3-34fa-4f4e-b584-8aa4ac859b3a\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestMember_f67830fc-7204-4c1f-a0fa-c30e254b8774\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_EquityComponentDomain_01f181e3-34fa-4f4e-b584-8aa4ac859b3a\" xlink:to=\"loc_us-gaap_NoncontrollingInterestMember_f67830fc-7204-4c1f-a0fa-c30e254b8774\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipAxis_39b15a10-43cc-4551-a084-dce4041f83ae\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OwnershipAxis\"/>\n    <link:presentationArc order=\"3\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_srt_OwnershipAxis_39b15a10-43cc-4551-a084-dce4041f83ae\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipDomain_6325e0d2-ebc6-4045-abae-c9f4078edb8d\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OwnershipDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_OwnershipAxis_39b15a10-43cc-4551-a084-dce4041f83ae\" xlink:to=\"loc_srt_OwnershipDomain_6325e0d2-ebc6-4045-abae-c9f4078edb8d\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestMember_758083cd-c7cd-4b98-86d7-06e98a43215d\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_OwnershipDomain_6325e0d2-ebc6-4045-abae-c9f4078edb8d\" xlink:to=\"loc_us-gaap_NoncontrollingInterestMember_758083cd-c7cd-4b98-86d7-06e98a43215d\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_33da85ca-add5-40ab-9989-635c19e717a0\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis\"/>\n    <link:presentationArc order=\"4\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_33da85ca-add5-40ab-9989-635c19e717a0\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9c21b02c-4fab-4df7-8def-a98aa066f34b\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_33da85ca-add5-40ab-9989-635c19e717a0\" xlink:to=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9c21b02c-4fab-4df7-8def-a98aa066f34b\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ConstructionInProgressMember_6f2774fb-7372-4d12-a39c-39e4f99f0f01\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_9c21b02c-4fab-4df7-8def-a98aa066f34b\" xlink:to=\"loc_us-gaap_ConstructionInProgressMember_6f2774fb-7372-4d12-a39c-39e4f99f0f01\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_ed671363-187a-438e-856e-c3dc9373dc29\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\"/>\n    <link:presentationArc order=\"5\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_ed671363-187a-438e-856e-c3dc9373dc29\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_518614b3-140e-4162-b395-200b06537380\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_ed671363-187a-438e-856e-c3dc9373dc29\" xlink:to=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_518614b3-140e-4162-b395-200b06537380\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OfficeBuildingMember_68526017-f772-4a9e-9c53-e46ce18129ec\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OfficeBuildingMember\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_518614b3-140e-4162-b395-200b06537380\" xlink:to=\"loc_srt_OfficeBuildingMember_68526017-f772-4a9e-9c53-e46ce18129ec\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestLineItems\"/>\n    <link:presentationArc order=\"6\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestInLimitedPartnerships_da7340ed-3833-43f3-82de-2daf3a35ba65\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestInLimitedPartnerships\"/>\n    <link:presentationArc order=\"1\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_MinorityInterestInLimitedPartnerships_da7340ed-3833-43f3-82de-2daf3a35ba65\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_e347db53-6940-4642-87ff-66ea1a71b370\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners\"/>\n    <link:presentationArc order=\"2\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_e347db53-6940-4642-87ff-66ea1a71b370\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestOwnershipPercentageByParent_c12f0ea8-a320-4939-9338-f27870f0c62e\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent\"/>\n    <link:presentationArc order=\"3\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_MinorityInterestOwnershipPercentageByParent_c12f0ea8-a320-4939-9338-f27870f0c62e\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ProceedsFromMinorityShareholders_75fcfe77-98f8-4b18-b25e-907da46c17a5\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromMinorityShareholders\"/>\n    <link:presentationArc order=\"4\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_ProceedsFromMinorityShareholders_75fcfe77-98f8-4b18-b25e-907da46c17a5\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest_cebcb8f4-15e2-43e5-a770-30ad2be281d3\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest\"/>\n    <link:presentationArc order=\"5\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest_cebcb8f4-15e2-43e5-a770-30ad2be281d3\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest_db5df11f-16c5-4219-9947-4918b1442547\" xlink:href=\"bxp-20240331.xsd#bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\"/>\n    <link:presentationArc order=\"6\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest_db5df11f-16c5-4219-9947-4918b1442547\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetRentableArea_c2185f7b-2c7e-4092-8a2a-16c064753e9a\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetRentableArea\"/>\n    <link:presentationArc order=\"7\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_NetRentableArea_c2185f7b-2c7e-4092-8a2a-16c064753e9a\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_Leasedpercentage_d977bfea-032b-4300-ba0e-c01b6d0352a7\" xlink:href=\"bxp-20240331.xsd#bxp_Leasedpercentage\"/>\n    <link:presentationArc order=\"8\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_bxp_Leasedpercentage_d977bfea-032b-4300-ba0e-c01b6d0352a7\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_PercentOfCarryingValueOfRealEstateGross_5ef49db1-c44c-4607-9055-ebc32fb31f9f\" xlink:href=\"bxp-20240331.xsd#bxp_PercentOfCarryingValueOfRealEstateGross\"/>\n    <link:presentationArc order=\"9\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_bxp_PercentOfCarryingValueOfRealEstateGross_5ef49db1-c44c-4607-9055-ebc32fb31f9f\" 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/NoncontrollingInterestsPropertyPartnershipsNarrativeDetails\" xlink:type=\"simple\" xlink:href=\"bxp-20240331.xsd#NoncontrollingInterestsPropertyPartnershipsNarrativeDetails\"/>\n  <link:definitionLink xlink:role=\"http://www.bxp.com/role/NoncontrollingInterestsPropertyPartnershipsNarrativeDetails\" xlink:type=\"extended\">\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestLineItems\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestTable\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/all\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:type=\"arc\" order=\"1\" xbrldt:closed=\"true\" xbrldt:contextElement=\"segment\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c_default\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-default\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c\" xlink:to=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c_default\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_ba7a6013-33c3-443c-a325-0a9d8228dec9\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_1235ed1c-ab5b-48cb-bdb2-a5f369f0655c\" xlink:to=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_ba7a6013-33c3-443c-a325-0a9d8228dec9\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_TwoNineZeroBinneyMember_8080455f-bdb9-464a-b930-b66b4350de20\" xlink:href=\"bxp-20240331.xsd#bxp_TwoNineZeroBinneyMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_ba7a6013-33c3-443c-a325-0a9d8228dec9\" xlink:to=\"loc_bxp_TwoNineZeroBinneyMember_8080455f-bdb9-464a-b930-b66b4350de20\" xlink:type=\"arc\" order=\"0\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ThreeZeroZeroBinneyStreetMember_a94038e4-8e00-447f-bc55-ba8d35fe0a93\" xlink:href=\"bxp-20240331.xsd#bxp_ThreeZeroZeroBinneyStreetMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_ba7a6013-33c3-443c-a325-0a9d8228dec9\" xlink:to=\"loc_bxp_ThreeZeroZeroBinneyStreetMember_a94038e4-8e00-447f-bc55-ba8d35fe0a93\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_StatementEquityComponentsAxis_5c18d809-273f-4589-919c-7f906019b16e\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_us-gaap_StatementEquityComponentsAxis_5c18d809-273f-4589-919c-7f906019b16e\" xlink:type=\"arc\" order=\"2\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_EquityComponentDomain_5c18d809-273f-4589-919c-7f906019b16e_default\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-default\" xlink:from=\"loc_us-gaap_StatementEquityComponentsAxis_5c18d809-273f-4589-919c-7f906019b16e\" xlink:to=\"loc_us-gaap_EquityComponentDomain_5c18d809-273f-4589-919c-7f906019b16e_default\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_EquityComponentDomain_01f181e3-34fa-4f4e-b584-8aa4ac859b3a\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:from=\"loc_us-gaap_StatementEquityComponentsAxis_5c18d809-273f-4589-919c-7f906019b16e\" xlink:to=\"loc_us-gaap_EquityComponentDomain_01f181e3-34fa-4f4e-b584-8aa4ac859b3a\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestMember_f67830fc-7204-4c1f-a0fa-c30e254b8774\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_EquityComponentDomain_01f181e3-34fa-4f4e-b584-8aa4ac859b3a\" xlink:to=\"loc_us-gaap_NoncontrollingInterestMember_f67830fc-7204-4c1f-a0fa-c30e254b8774\" xlink:type=\"arc\" order=\"0\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipAxis_39b15a10-43cc-4551-a084-dce4041f83ae\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OwnershipAxis\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_srt_OwnershipAxis_39b15a10-43cc-4551-a084-dce4041f83ae\" xlink:type=\"arc\" order=\"3\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipDomain_39b15a10-43cc-4551-a084-dce4041f83ae_default\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OwnershipDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-default\" xlink:from=\"loc_srt_OwnershipAxis_39b15a10-43cc-4551-a084-dce4041f83ae\" xlink:to=\"loc_srt_OwnershipDomain_39b15a10-43cc-4551-a084-dce4041f83ae_default\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipDomain_6325e0d2-ebc6-4045-abae-c9f4078edb8d\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OwnershipDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:from=\"loc_srt_OwnershipAxis_39b15a10-43cc-4551-a084-dce4041f83ae\" xlink:to=\"loc_srt_OwnershipDomain_6325e0d2-ebc6-4045-abae-c9f4078edb8d\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestMember_758083cd-c7cd-4b98-86d7-06e98a43215d\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_srt_OwnershipDomain_6325e0d2-ebc6-4045-abae-c9f4078edb8d\" xlink:to=\"loc_us-gaap_NoncontrollingInterestMember_758083cd-c7cd-4b98-86d7-06e98a43215d\" xlink:type=\"arc\" order=\"0\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_33da85ca-add5-40ab-9989-635c19e717a0\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_33da85ca-add5-40ab-9989-635c19e717a0\" xlink:type=\"arc\" order=\"4\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_33da85ca-add5-40ab-9989-635c19e717a0_default\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-default\" xlink:from=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_33da85ca-add5-40ab-9989-635c19e717a0\" xlink:to=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_33da85ca-add5-40ab-9989-635c19e717a0_default\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9c21b02c-4fab-4df7-8def-a98aa066f34b\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:from=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_33da85ca-add5-40ab-9989-635c19e717a0\" xlink:to=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9c21b02c-4fab-4df7-8def-a98aa066f34b\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ConstructionInProgressMember_6f2774fb-7372-4d12-a39c-39e4f99f0f01\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConstructionInProgressMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9c21b02c-4fab-4df7-8def-a98aa066f34b\" xlink:to=\"loc_us-gaap_ConstructionInProgressMember_6f2774fb-7372-4d12-a39c-39e4f99f0f01\" xlink:type=\"arc\" order=\"0\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_ed671363-187a-438e-856e-c3dc9373dc29\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/hypercube-dimension\" xlink:from=\"loc_us-gaap_MinorityInterestTable_3b1f4b56-5f79-4f7e-9134-319c057e2f52\" xlink:to=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_ed671363-187a-438e-856e-c3dc9373dc29\" xlink:type=\"arc\" order=\"5\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_ed671363-187a-438e-856e-c3dc9373dc29_default\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-default\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_ed671363-187a-438e-856e-c3dc9373dc29\" xlink:to=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_ed671363-187a-438e-856e-c3dc9373dc29_default\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_518614b3-140e-4162-b395-200b06537380\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/dimension-domain\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_ed671363-187a-438e-856e-c3dc9373dc29\" xlink:to=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_518614b3-140e-4162-b395-200b06537380\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OfficeBuildingMember_68526017-f772-4a9e-9c53-e46ce18129ec\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OfficeBuildingMember\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_518614b3-140e-4162-b395-200b06537380\" xlink:to=\"loc_srt_OfficeBuildingMember_68526017-f772-4a9e-9c53-e46ce18129ec\" xlink:type=\"arc\" order=\"0\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestInLimitedPartnerships_da7340ed-3833-43f3-82de-2daf3a35ba65\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestInLimitedPartnerships\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_MinorityInterestInLimitedPartnerships_da7340ed-3833-43f3-82de-2daf3a35ba65\" xlink:type=\"arc\" order=\"0\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_e347db53-6940-4642-87ff-66ea1a71b370\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_e347db53-6940-4642-87ff-66ea1a71b370\" xlink:type=\"arc\" order=\"1\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestOwnershipPercentageByParent_c12f0ea8-a320-4939-9338-f27870f0c62e\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_MinorityInterestOwnershipPercentageByParent_c12f0ea8-a320-4939-9338-f27870f0c62e\" xlink:type=\"arc\" order=\"2\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ProceedsFromMinorityShareholders_75fcfe77-98f8-4b18-b25e-907da46c17a5\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromMinorityShareholders\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_ProceedsFromMinorityShareholders_75fcfe77-98f8-4b18-b25e-907da46c17a5\" xlink:type=\"arc\" order=\"3\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest_cebcb8f4-15e2-43e5-a770-30ad2be281d3\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest_cebcb8f4-15e2-43e5-a770-30ad2be281d3\" xlink:type=\"arc\" order=\"4\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest_db5df11f-16c5-4219-9947-4918b1442547\" xlink:href=\"bxp-20240331.xsd#bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest_db5df11f-16c5-4219-9947-4918b1442547\" xlink:type=\"arc\" order=\"5\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NetRentableArea_c2185f7b-2c7e-4092-8a2a-16c064753e9a\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetRentableArea\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_us-gaap_NetRentableArea_c2185f7b-2c7e-4092-8a2a-16c064753e9a\" xlink:type=\"arc\" order=\"6\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_Leasedpercentage_d977bfea-032b-4300-ba0e-c01b6d0352a7\" xlink:href=\"bxp-20240331.xsd#bxp_Leasedpercentage\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_bxp_Leasedpercentage_d977bfea-032b-4300-ba0e-c01b6d0352a7\" xlink:type=\"arc\" order=\"7\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_PercentOfCarryingValueOfRealEstateGross_5ef49db1-c44c-4607-9055-ebc32fb31f9f\" xlink:href=\"bxp-20240331.xsd#bxp_PercentOfCarryingValueOfRealEstateGross\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_MinorityInterestLineItems_7a4e4bc3-a8d7-496a-b566-f4ead4608529\" xlink:to=\"loc_bxp_PercentOfCarryingValueOfRealEstateGross_5ef49db1-c44c-4607-9055-ebc32fb31f9f\" xlink:type=\"arc\" order=\"8\"/>\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_us-gaap_CashMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_CashMember\" xlink:to=\"lab_us-gaap_CashMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_CashMember_887ee22c-6737-46c5-8ead-b5a4cf3f9580_terseLabel_en-US\" xlink:label=\"lab_us-gaap_CashMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash</link:label>\n    <link:label id=\"lab_us-gaap_CashMember_label_en-US\" xlink:label=\"lab_us-gaap_CashMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ResidentialRealEstateMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ResidentialRealEstateMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ResidentialRealEstateMember\" xlink:to=\"lab_us-gaap_ResidentialRealEstateMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ResidentialRealEstateMember_63f09a45-951a-419d-ad14-293bf447226e_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ResidentialRealEstateMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Residential Properties [Member]</link:label>\n    <link:label id=\"lab_us-gaap_ResidentialRealEstateMember_label_en-US\" xlink:label=\"lab_us-gaap_ResidentialRealEstateMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Residential Real Estate [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_NineZeroOneNewYorkAvenueMember\" xlink:href=\"bxp-20240331.xsd#bxp_NineZeroOneNewYorkAvenueMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_NineZeroOneNewYorkAvenueMember\" xlink:to=\"lab_bxp_NineZeroOneNewYorkAvenueMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_NineZeroOneNewYorkAvenueMember_ffb65931-5c9f-4b1c-a811-d837623f2b4d_terseLabel_en-US\" xlink:label=\"lab_bxp_NineZeroOneNewYorkAvenueMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">901 New York Avenue</link:label>\n    <link:label id=\"lab_bxp_NineZeroOneNewYorkAvenueMember_label_en-US\" xlink:label=\"lab_bxp_NineZeroOneNewYorkAvenueMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Nine Zero One New York Avenue [Member]</link:label>\n    <link:label id=\"lab_bxp_NineZeroOneNewYorkAvenueMember_documentation_en-US\" xlink:label=\"lab_bxp_NineZeroOneNewYorkAvenueMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Nine Zero One New York Avenue</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\" xlink:to=\"lab_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_367d1e8f-4841-4e4a-b541-e944674aa0d5_terseLabel_en-US\" xlink:label=\"lab_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Name of Property [Domain]</link:label>\n    <link:label id=\"lab_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_label_en-US\" xlink:label=\"lab_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Name of Property [Domain]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_CashAndCashEquivalentsAxis\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_CashAndCashEquivalentsAxis\" xlink:to=\"lab_us-gaap_CashAndCashEquivalentsAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_CashAndCashEquivalentsAxis_839759ab-a2ff-44c6-856c-ee84e984b7a2_terseLabel_en-US\" xlink:label=\"lab_us-gaap_CashAndCashEquivalentsAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash and Cash Equivalents [Axis]</link:label>\n    <link:label id=\"lab_us-gaap_CashAndCashEquivalentsAxis_label_en-US\" xlink:label=\"lab_us-gaap_CashAndCashEquivalentsAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Cash and Cash Equivalents [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_OwnershipDomain\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.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_ec9d76bb-3c08-4dd8-9b04-4488ed6643be_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_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\" xlink:to=\"lab_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_33e5d97b-34e1-4323-92f7-7c262678c357_terseLabel_en-US\" xlink:label=\"lab_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Name of Property [Axis]</link:label>\n    <link:label id=\"lab_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_label_en-US\" xlink:label=\"lab_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Name of Property [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestInLimitedPartnerships\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestInLimitedPartnerships\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_MinorityInterestInLimitedPartnerships\" xlink:to=\"lab_us-gaap_MinorityInterestInLimitedPartnerships\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_MinorityInterestInLimitedPartnerships_c4585e1b-375b-4690-981e-f87928e2680f_verboseLabel_en-US\" xlink:label=\"lab_us-gaap_MinorityInterestInLimitedPartnerships\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Property partnerships</link:label>\n    <link:label id=\"lab_us-gaap_MinorityInterestInLimitedPartnerships_badc0de9-d89a-497f-a446-76bd7b8511b1_terseLabel_en-US\" xlink:label=\"lab_us-gaap_MinorityInterestInLimitedPartnerships\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling Interest in Limited Partnerships</link:label>\n    <link:label id=\"lab_us-gaap_MinorityInterestInLimitedPartnerships_label_en-US\" xlink:label=\"lab_us-gaap_MinorityInterestInLimitedPartnerships\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling Interest in Limited Partnerships</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_CapitalMember\" xlink:href=\"bxp-20240331.xsd#bxp_CapitalMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_CapitalMember\" xlink:to=\"lab_bxp_CapitalMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_CapitalMember_bbaec6ae-c028-40af-95ec-b8815bda3235_terseLabel_en-US\" xlink:label=\"lab_bxp_CapitalMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Total Capital [Member]</link:label>\n    <link:label id=\"lab_bxp_CapitalMember_label_en-US\" xlink:label=\"lab_bxp_CapitalMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Capital [Member]</link:label>\n    <link:label id=\"lab_bxp_CapitalMember_documentation_en-US\" xlink:label=\"lab_bxp_CapitalMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Capital [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis\" xlink:to=\"lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_77105423-6173-45d9-a4cd-9f2bdeebb7f8_terseLabel_en-US\" xlink:label=\"lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Investment, Name [Axis]</link:label>\n    <link:label id=\"lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_label_en-US\" xlink:label=\"lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Investment, Name [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_AdditionalPaidInCapitalMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_AdditionalPaidInCapitalMember\" xlink:to=\"lab_us-gaap_AdditionalPaidInCapitalMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_AdditionalPaidInCapitalMember_7eeef5ea-7cc9-4e9f-b2c6-7d08388660e9_terseLabel_en-US\" xlink:label=\"lab_us-gaap_AdditionalPaidInCapitalMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Additional Paid-In Capital [Member]</link:label>\n    <link:label id=\"lab_us-gaap_AdditionalPaidInCapitalMember_label_en-US\" xlink:label=\"lab_us-gaap_AdditionalPaidInCapitalMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Additional Paid-in Capital [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_SevenSevenFiveZeroWisconsinAvenueMember\" xlink:href=\"bxp-20240331.xsd#bxp_SevenSevenFiveZeroWisconsinAvenueMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_SevenSevenFiveZeroWisconsinAvenueMember\" xlink:to=\"lab_bxp_SevenSevenFiveZeroWisconsinAvenueMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_SevenSevenFiveZeroWisconsinAvenueMember_cc6d1d0d-1ed1-4b9a-967c-86097b47bacc_terseLabel_en-US\" xlink:label=\"lab_bxp_SevenSevenFiveZeroWisconsinAvenueMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">7750 Wisconsin Avenue [Member]</link:label>\n    <link:label id=\"lab_bxp_SevenSevenFiveZeroWisconsinAvenueMember_label_en-US\" xlink:label=\"lab_bxp_SevenSevenFiveZeroWisconsinAvenueMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Seven Seven Five Zero Wisconsin Avenue [Member]</link:label>\n    <link:label id=\"lab_bxp_SevenSevenFiveZeroWisconsinAvenueMember_documentation_en-US\" xlink:label=\"lab_bxp_SevenSevenFiveZeroWisconsinAvenueMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">7750 Wisconsin Avenue [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_CommercialRealEstateMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_46e9759d-e47f-4130-8901-2e2511757a38_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/2023/elts/us-gaap-2023.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_122f890e-b013-408f-9192-87dd1e8e441d_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_PropertyPlantAndEquipmentByTypeAxis\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis\" xlink:to=\"lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2a0fd2c0-f586-40e4-9a7e-6c047bc8310e_terseLabel_en-US\" xlink:label=\"lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Property, Plant and Equipment, Type [Axis]</link:label>\n    <link:label id=\"lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_label_en-US\" xlink:label=\"lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Long-Lived Tangible Asset [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\" xlink:to=\"lab_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_2166164b-280d-421d-b9dc-c3105306ea34_terseLabel_en-US\" xlink:label=\"lab_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Real Estate, Type of Property [Axis]</link:label>\n    <link:label id=\"lab_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_label_en-US\" xlink:label=\"lab_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Real Estate, Type of Property [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_EquityComponentDomain\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_EquityComponentDomain\" xlink:to=\"lab_us-gaap_EquityComponentDomain\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_EquityComponentDomain_4fed5420-c976-4aad-8fef-c195c75a104c_terseLabel_en-US\" xlink:label=\"lab_us-gaap_EquityComponentDomain\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Equity Component [Domain]</link:label>\n    <link:label id=\"lab_us-gaap_EquityComponentDomain_label_en-US\" xlink:label=\"lab_us-gaap_EquityComponentDomain\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Equity Component [Domain]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_NoncontrollinginterestpropertypartnershipsMember\" xlink:href=\"bxp-20240331.xsd#bxp_NoncontrollinginterestpropertypartnershipsMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_NoncontrollinginterestpropertypartnershipsMember\" xlink:to=\"lab_bxp_NoncontrollinginterestpropertypartnershipsMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_NoncontrollinginterestpropertypartnershipsMember_68e97416-1be2-4765-95a3-6e1366c21404_terseLabel_en-US\" xlink:label=\"lab_bxp_NoncontrollinginterestpropertypartnershipsMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling interest - property partnerships [Member]</link:label>\n    <link:label id=\"lab_bxp_NoncontrollinginterestpropertypartnershipsMember_label_en-US\" xlink:label=\"lab_bxp_NoncontrollinginterestpropertypartnershipsMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling interest - property partnerships [Member]</link:label>\n    <link:label id=\"lab_bxp_NoncontrollinginterestpropertypartnershipsMember_documentation_en-US\" xlink:label=\"lab_bxp_NoncontrollinginterestpropertypartnershipsMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling interest - property partnerships [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_SubsequentEventMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.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_6d7b9081-21b9-4f9e-8938-128182fbccdd_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_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\" xlink:href=\"bxp-20240331.xsd#bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\" xlink:to=\"lab_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest_88b48363-9daa-4dce-a475-bc0fa33c1291_terseLabel_en-US\" xlink:label=\"lab_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Difference Between Proceeds from Sale and Noncontrolling Interest</link:label>\n    <link:label id=\"lab_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest_label_en-US\" xlink:label=\"lab_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Difference Between Proceeds from Sale and Noncontrolling Interest</link:label>\n    <link:label id=\"lab_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest_documentation_en-US\" xlink:label=\"lab_bxp_DifferenceBetweenProceedsFromSaleAndNoncontrollingInterest\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Difference Between Proceeds from Sale and Noncontrolling Interest</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_SixFiveOneGatewayMember\" xlink:href=\"bxp-20240331.xsd#bxp_SixFiveOneGatewayMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_SixFiveOneGatewayMember\" xlink:to=\"lab_bxp_SixFiveOneGatewayMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_SixFiveOneGatewayMember_d4c64bce-bbf3-4700-8710-c7d804bec13c_terseLabel_en-US\" xlink:label=\"lab_bxp_SixFiveOneGatewayMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">651 Gateway</link:label>\n    <link:label id=\"lab_bxp_SixFiveOneGatewayMember_label_en-US\" xlink:label=\"lab_bxp_SixFiveOneGatewayMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Six Five One Gateway [Member]</link:label>\n    <link:label id=\"lab_bxp_SixFiveOneGatewayMember_documentation_en-US\" xlink:label=\"lab_bxp_SixFiveOneGatewayMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Six Five One Gateway</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestOwnershipPercentageByParent\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_MinorityInterestOwnershipPercentageByParent\" xlink:to=\"lab_us-gaap_MinorityInterestOwnershipPercentageByParent\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_MinorityInterestOwnershipPercentageByParent_0ffc2e10-e31b-40fc-90cd-89e55376cee5_terseLabel_en-US\" xlink:label=\"lab_us-gaap_MinorityInterestOwnershipPercentageByParent\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling Interest, Ownership Percentage by Parent</link:label>\n    <link:label id=\"lab_us-gaap_MinorityInterestOwnershipPercentageByParent_label_en-US\" xlink:label=\"lab_us-gaap_MinorityInterestOwnershipPercentageByParent\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Subsidiary, Ownership Percentage, Parent</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_BostonPropertiesLimitedPartnershipMember\" xlink:href=\"bxp-20240331.xsd#bxp_BostonPropertiesLimitedPartnershipMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_BostonPropertiesLimitedPartnershipMember\" xlink:to=\"lab_bxp_BostonPropertiesLimitedPartnershipMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_BostonPropertiesLimitedPartnershipMember_15b0ef03-1362-437c-b1e2-e4fe1a88c735_terseLabel_en-US\" xlink:label=\"lab_bxp_BostonPropertiesLimitedPartnershipMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Boston Properties Limited Partnership</link:label>\n    <link:label id=\"lab_bxp_BostonPropertiesLimitedPartnershipMember_66a2c3ff-4104-4a74-80dd-4b38c32fdb0b_verboseLabel_en-US\" xlink:label=\"lab_bxp_BostonPropertiesLimitedPartnershipMember\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Partners' Capital (General and Limited Partners)[Member]</link:label>\n    <link:label id=\"lab_bxp_BostonPropertiesLimitedPartnershipMember_label_en-US\" xlink:label=\"lab_bxp_BostonPropertiesLimitedPartnershipMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Boston Properties Limited Partnership [Member]</link:label>\n    <link:label id=\"lab_bxp_BostonPropertiesLimitedPartnershipMember_documentation_en-US\" xlink:label=\"lab_bxp_BostonPropertiesLimitedPartnershipMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Boston Properties Limited Partnership</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_NoncontrollingInterestMember\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncontrollingInterestMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_NoncontrollingInterestMember\" xlink:to=\"lab_us-gaap_NoncontrollingInterestMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_NoncontrollingInterestMember_5d8b9ea4-06f4-4f78-a0ce-079ae7f7c0d6_verboseLabel_en-US\" xlink:label=\"lab_us-gaap_NoncontrollingInterestMember\" xlink:role=\"http://www.xbrl.org/2003/role/verboseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling Interests [Member]</link:label>\n    <link:label id=\"lab_us-gaap_NoncontrollingInterestMember_3d14cf45-6779-4acc-aef5-0fd9ad89cf4b_terseLabel_en-US\" xlink:label=\"lab_us-gaap_NoncontrollingInterestMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling Interest [Member]</link:label>\n    <link:label id=\"lab_us-gaap_NoncontrollingInterestMember_label_en-US\" xlink:label=\"lab_us-gaap_NoncontrollingInterestMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling Interest [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_PercentOfCarryingValueOfRealEstateGross\" xlink:href=\"bxp-20240331.xsd#bxp_PercentOfCarryingValueOfRealEstateGross\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_PercentOfCarryingValueOfRealEstateGross\" xlink:to=\"lab_bxp_PercentOfCarryingValueOfRealEstateGross\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_PercentOfCarryingValueOfRealEstateGross_cb6b1850-1b4d-43a0-ba62-af255dd586fa_terseLabel_en-US\" xlink:label=\"lab_bxp_PercentOfCarryingValueOfRealEstateGross\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Percent of Carrying Value of Real Estate, Gross</link:label>\n    <link:label id=\"lab_bxp_PercentOfCarryingValueOfRealEstateGross_label_en-US\" xlink:label=\"lab_bxp_PercentOfCarryingValueOfRealEstateGross\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Percent of Carrying Value of Real Estate, Gross</link:label>\n    <link:label id=\"lab_bxp_PercentOfCarryingValueOfRealEstateGross_documentation_en-US\" xlink:label=\"lab_bxp_PercentOfCarryingValueOfRealEstateGross\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Percent of Carrying Value of Real Estate, Gross</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_MinorityInterestTable\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MinorityInterestTable\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_MinorityInterestTable\" xlink:to=\"lab_us-gaap_MinorityInterestTable\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_MinorityInterestTable_7ddf28eb-befa-41ae-8eda-0d86dca00d30_terseLabel_en-US\" xlink:label=\"lab_us-gaap_MinorityInterestTable\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling Interest [Table]</link:label>\n    <link:label id=\"lab_us-gaap_MinorityInterestTable_label_en-US\" xlink:label=\"lab_us-gaap_MinorityInterestTable\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Noncontrolling Interest [Table]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_RealEstatePropertiesAxis\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RealEstatePropertiesAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_RealEstatePropertiesAxis\" xlink:to=\"lab_us-gaap_RealEstatePropertiesAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_RealEstatePropertiesAxis_3a546765-f03c-4f1d-affc-ebed4d55c1f1_terseLabel_en-US\" xlink:label=\"lab_us-gaap_RealEstatePropertiesAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Real Estate Properties [Axis]</link:label>\n    <link:label id=\"lab_us-gaap_RealEstatePropertiesAxis_label_en-US\" xlink:label=\"lab_us-gaap_RealEstatePropertiesAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Real Estate Property Ownership [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_TwoFiveZeroBinneyStreetMember\" xlink:href=\"bxp-20240331.xsd#bxp_TwoFiveZeroBinneyStreetMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_TwoFiveZeroBinneyStreetMember\" xlink:to=\"lab_bxp_TwoFiveZeroBinneyStreetMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_TwoFiveZeroBinneyStreetMember_181bf8b5-1157-4f63-812e-7c4b02ae04eb_terseLabel_en-US\" xlink:label=\"lab_bxp_TwoFiveZeroBinneyStreetMember\" xlink:role=\"http://www.xbrl.org/2\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/20240331\" xmlns:dei=\"http://xbrl.sec.gov/dei/2023\" xmlns:ecd=\"http://xbrl.sec.gov/ecd/2023\" xmlns:iso4217=\"http://www.xbrl.org/2003/iso4217\" xmlns:link=\"http://www.xbrl.org/2003/linkbase\" xmlns:srt=\"http://fasb.org/srt/2023\" xmlns:stpr=\"http://xbrl.sec.gov/stpr/2023\" xmlns:us-gaap=\"http://fasb.org/us-gaap/2023\" 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-20240331.xsd\" xlink:type=\"simple\"/>\n\t<context id=\"c-8\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n        </entity>\n        <period>\n            <instant>2024-03-31</instant>\n        </period>\n    </context>\n\t<context id=\"c-9\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n        </entity>\n        <period>\n            <instant>2023-12-31</instant>\n        </period>\n    </context>\n\t<context id=\"c-330\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis\">bxp:TwoNineZeroBinneyMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2024-03-21</instant>\n        </period>\n    </context>\n\t<context id=\"c-332\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:OwnershipAxis\">us-gaap:NoncontrollingInterestMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember 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contextRef=\"c-305\" decimals=\"INF\" id=\"f-1470\" unitRef=\"sqft\">566000</us-gaap:NetRentableArea>\n\t<us-gaap:NetRentableArea contextRef=\"c-436\" decimals=\"INF\" id=\"f-1850\" unitRef=\"sqft\">118000</us-gaap:NetRentableArea>\n\t<bxp:Leasedpercentage contextRef=\"c-256\" decimals=\"2\" id=\"f-1280\" unitRef=\"number\">0.21</bxp:Leasedpercentage>\n\t<bxp:Leasedpercentage contextRef=\"c-304\" decimals=\"2\" id=\"f-1410\" unitRef=\"number\">1</bxp:Leasedpercentage>\n\t<bxp:Leasedpercentage contextRef=\"c-305\" decimals=\"2\" id=\"f-1471\" unitRef=\"number\">1</bxp:Leasedpercentage>\n\t<bxp:PercentOfCarryingValueOfRealEstateGross contextRef=\"c-330\" decimals=\"2\" id=\"f-1464\" unitRef=\"number\">0.45</bxp:PercentOfCarryingValueOfRealEstateGross>\n\t</xbrl>\n\n\n\n##US GAAP Taxonomy\n[Concept Core]\nID: srt:OwnershipAxis\nLabel: Ownership [Axis]\nType: xbrli:stringItemType | Balance: None | PeriodType: duration | Abstract: True\nStatus: None | DeprecatedLabel: None | DeprecatedDate: None\nDocumentation:\nInformation by name of entity in which ownership interest is disclosed. Excludes equity method investee and named security investment.\n\nProvenance: file=GAAP_Taxonomy_2024.xlsx | sheet=Concepts | row=474\n\n\n[Concept Core]\nID: us-gaap:NoncontrollingInterestMember\nLabel: Noncontrolling Interest [Member]\nType: dtr-types:domainItemType | Balance: None | PeriodType: duration | Abstract: True\nStatus: None | DeprecatedLabel: None | DeprecatedDate: None\nDocumentation:\nThis element represents that portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent. A noncontrolling interest is sometimes called a minority interest.\n\nProvenance: file=GAAP_Taxonomy_2024.xlsx | sheet=Concepts | row=8840\n\n\n[Concept Relations]\nID: srt:OwnershipAxis\n\nPresentation:\n- Role: http://fasb.org/us-gaap/role/statement/CommonDomainMembers\n  Path: Statement [Table] > Ownership [Axis]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/statement/CommonDomainMembers\n  Path: Ownership [Axis] > Ownership [Domain]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/OrganizationConsolidationAndPresentationOfFinancialStatements\n  Path: Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table] > Ownership [Axis]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/OrganizationConsolidationAndPresentationOfFinancialStatements\n  Path: Ownership [Axis] > Ownership [Domain]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/MinorityInterest\n  Path: Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table] > Ownership [Axis]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/MinorityInterest\n  Path: Ownership [Axis] > Ownership [Domain]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/MinorityInterest\n  Path: Noncontrolling Interest [Table] > Ownership [Axis]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/MinorityInterest\n  Path: Ownership [Axis] > Ownership [Domain]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/MinorityInterest\n  Path: Redeemable Noncontrolling Interest [Table] > Ownership [Axis]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/MinorityInterest\n  Path: Ownership [Axis] > Ownership [Domain]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/BusinessCombinations\n  Path: Schedule of Business Acquisitions, by Acquisition [Table] > Ownership [Axis]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/BusinessCombinations\n  Path: Ownership [Axis] > Ownership [Domain]\n  PreferredLabel: None\nProvenance: sheets include Presentation-like sheets\n\n\n[Concept Relations]\nID: srt:OwnershipAxis\n\nDefinition (Dimensions/Domain/Hypercube):\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:StatementTable -> to=srt:OwnershipAxis (role=http://fasb.org/us-gaap/role/statement/CommonDomainMembersStatementTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/statement/CommonDomainMembersStatementTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/statement/CommonDomainMembersStatementTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable -> to=srt:OwnershipAxis (role=http://fasb.org/us-gaap/role/disclosure/OrganizationConsolidationAndPresentationOfFinancialStatementsConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/OrganizationConsolidationAndPresentationOfFinancialStatementsConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/OrganizationConsolidationAndPresentationOfFinancialStatementsConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable -> to=srt:OwnershipAxis (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterestConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterestConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterestConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:MinorityInterestTable -> to=srt:OwnershipAxis (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterest)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterest)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterest)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:RedeemableNoncontrollingInterestByLegalEntityTable -> to=srt:OwnershipAxis (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterestRedeemableNoncontrollingInterestByLegalEntityTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterestRedeemableNoncontrollingInterestByLegalEntityTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterestRedeemableNoncontrollingInterestByLegalEntityTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTable -> to=srt:OwnershipAxis (role=http://fasb.org/us-gaap/role/disclosure/BusinessCombinationsScheduleOfBusinessAcquisitionsByAcquisitionTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/BusinessCombinationsScheduleOfBusinessAcquisitionsByAcquisitionTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:OwnershipAxis -> to=srt:OwnershipDomain (role=http://fasb.org/us-gaap/role/disclosure/BusinessCombinationsScheduleOfBusinessAcquisitionsByAcquisitionTable)\nProvenance: sheets include Definition-like sheets\n\n\n[Concept Relations]\nID: srt:OwnershipAxis\n\nReferences:\n- Taxonomy Implementation Guide | None | None\nProvenance: sheets include Reference-like sheets\n\n\n[Concept Relations]\nID: us-gaap:NoncontrollingInterestMember\n\nPresentation:\n- Role: http://fasb.org/us-gaap/role/statement/StatementOfShareholdersEquityAndOtherComprehensiveIncome\n  Path: Equity Component [Domain] > Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/statement/StatementOfShareholdersEquityAndOtherComprehensiveIncome\n  Path: Noncontrolling Interest [Member] > AOCI Attributable to Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance\n  Path: Parent [Member] > Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/MinorityInterest\n  Path: Equity Component [Domain] > Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/MinorityInterest\n  Path: Equity Component [Domain] > Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/Equity\n  Path: Equity Component [Domain] > Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/Equity\n  Path: Noncontrolling Interest [Member] > AOCI Attributable to Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/Equity\n  Path: Equity Component [Domain] > Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/Equity\n  Path: Noncontrolling Interest [Member] > AOCI Attributable to Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany\n  Path: Equity Component [Domain] > Noncontrolling Interest [Member]\n  PreferredLabel: None\n- Role: http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany\n  Path: Noncontrolling Interest [Member] > AOCI Attributable to Noncontrolling Interest [Member]\n  PreferredLabel: None\nProvenance: sheets include Presentation-like sheets\n\n\n[Concept Relations]\nID: us-gaap:NoncontrollingInterestMember\n\nDefinition (Dimensions/Domain/Hypercube):\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/statement/StatementOfShareholdersEquityAndOtherComprehensiveIncomeStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NoncontrollingInterestMember -> to=us-gaap:AociAttributableToNoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/statement/StatementOfShareholdersEquityAndOtherComprehensiveIncomeStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/statement/StatementOfShareholdersEquityAndOtherComprehensiveIncomeStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NoncontrollingInterestMember -> to=us-gaap:AociAttributableToNoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/statement/StatementOfShareholdersEquityAndOtherComprehensiveIncomeStatementTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:ParentMember -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceNewAccountingPronouncementsOrChangeInAccountingPrincipleTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:ParentMember -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceNewAccountingPronouncementsOrChangeInAccountingPrincipleTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterestConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterestConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterest)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/MinorityInterest)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentCompanyChangesInNetAssetsTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NoncontrollingInterestMember -> to=us-gaap:AociAttributableToNoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentCompanyChangesInNetAssetsTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentCompanyChangesInNetAssetsTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NoncontrollingInterestMember -> to=us-gaap:AociAttributableToNoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentCompanyChangesInNetAssetsTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/EquityAccumulatedOtherComprehensiveIncomeLossTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NoncontrollingInterestMember -> to=us-gaap:AociAttributableToNoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/EquityAccumulatedOtherComprehensiveIncomeLossTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/EquityAccumulatedOtherComprehensiveIncomeLossTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NoncontrollingInterestMember -> to=us-gaap:AociAttributableToNoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/EquityAccumulatedOtherComprehensiveIncomeLossTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/EquityReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NoncontrollingInterestMember -> to=us-gaap:AociAttributableToNoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/EquityReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:EquityComponentDomain -> to=us-gaap:NoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/EquityReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable)\n- http://xbrl.org/int/dim/arcrole/domain-member: from=us-gaap:NoncontrollingInterestMember -> to=us-gaap:AociAttributableToNoncontrollingInterestMember (role=http://fasb.org/us-gaap/role/disclosure/EquityReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable)\nProvenance: sheets include Definition-like sheets\n\n\n[Concept Relations]\nID: us-gaap:NoncontrollingInterestMember\n\nReferences:\n- Disclosure Improvements | None | None\n- BDC:Taxonomy Technical Improvement | None | None\nProvenance: sheets include Reference-like sheets\n\nQuestion: What erroneous relationship type exists between srt:OwnershipAxis and us-gaap:NoncontrollingInterestMember, based on the provided XBRL filing and the US GAAP taxonomy?\nAnswer:\n\n    "

Answer: "CombinationErr"