"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/StockOptionandIncentivePlanNarrativeDetails\" xlink:type=\"simple\" xlink:href=\"bxp-20231231.xsd#StockOptionandIncentivePlanNarrativeDetails\"/>\n  <link:presentationLink xlink:role=\"http://www.bxp.com/role/StockOptionandIncentivePlanNarrativeDetails\" xlink:type=\"extended\">\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_154cc6c0-501a-4116-9ec3-7241bb3ff395\" 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xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward_6d60460b-3672-4c55-ac00-40606a6203fd\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward\"/>\n    <link:presentationArc order=\"3\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward_6d60460b-3672-4c55-ac00-40606a6203fd\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_DistributionsPercentBeforeMeasurementDate_0b0cc33f-1016-411d-b28d-593ec7ebd8d4\" xlink:href=\"bxp-20231231.xsd#bxp_DistributionsPercentBeforeMeasurementDate\"/>\n    <link:presentationArc order=\"4\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_DistributionsPercentBeforeMeasurementDate_0b0cc33f-1016-411d-b28d-593ec7ebd8d4\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_03964204-8606-4f01-92f1-780580b26e96\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1\"/>\n    <link:presentationArc order=\"5\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" 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xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_OtherThanStockOptionsAwardsConversionRatio_21a8f345-a2e9-47b9-b16e-7b45bf5a15d8\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_StockOptionAwardsConversionRatio_e80f2b28-dd47-4013-b43e-2a748e2979ee\" xlink:href=\"bxp-20231231.xsd#bxp_StockOptionAwardsConversionRatio\"/>\n    <link:presentationArc order=\"9\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_StockOptionAwardsConversionRatio_e80f2b28-dd47-4013-b43e-2a748e2979ee\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_StockOptionandIncentivePlanTermPeriod_e58f21b3-6fd7-4bd1-b5ee-3b33ecc93b73\" xlink:href=\"bxp-20231231.xsd#bxp_StockOptionandIncentivePlanTermPeriod\"/>\n    <link:presentationArc order=\"10\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_StockOptionandIncentivePlanTermPeriod_e58f21b3-6fd7-4bd1-b5ee-3b33ecc93b73\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_TSRMeasurementYears_1013c435-f50b-43b1-b289-27ad20ab61f2\" xlink:href=\"bxp-20231231.xsd#bxp_TSRMeasurementYears\"/>\n    <link:presentationArc order=\"11\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_TSRMeasurementYears_1013c435-f50b-43b1-b289-27ad20ab61f2\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_Minimumearnedawards_9a7c4714-fe19-426a-8def-5f54511a6505\" xlink:href=\"bxp-20231231.xsd#bxp_Minimumearnedawards\"/>\n    <link:presentationArc order=\"12\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_Minimumearnedawards_9a7c4714-fe19-426a-8def-5f54511a6505\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MaximumEarnedAwards_ca9fd46b-a3c1-4ede-80ba-1b8136555503\" xlink:href=\"bxp-20231231.xsd#bxp_MaximumEarnedAwards\"/>\n    <link:presentationArc order=\"13\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_MaximumEarnedAwards_ca9fd46b-a3c1-4ede-80ba-1b8136555503\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_EarnedwardsTarget_f99a2175-40e6-4a44-8fe4-c1f7322870ff\" xlink:href=\"bxp-20231231.xsd#bxp_EarnedwardsTarget\"/>\n    <link:presentationArc order=\"14\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_EarnedwardsTarget_f99a2175-40e6-4a44-8fe4-c1f7322870ff\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_2d80b314-0313-4c87-8034-96ff5b2b07e6\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights\"/>\n    <link:presentationArc order=\"15\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_2d80b314-0313-4c87-8034-96ff5b2b07e6\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ValueOfMyltipAwards_2c351f84-f003-4242-8e69-8c789e56f7de\" xlink:href=\"bxp-20231231.xsd#bxp_ValueOfMyltipAwards\"/>\n    <link:presentationArc order=\"16\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_ValueOfMyltipAwards_2c351f84-f003-4242-8e69-8c789e56f7de\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MYLTIPValueAmortizedIntoEarningsYears_59412e8c-21cc-4873-9e7d-699f4634abdf\" xlink:href=\"bxp-20231231.xsd#bxp_MYLTIPValueAmortizedIntoEarningsYears\"/>\n    <link:presentationArc order=\"17\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_MYLTIPValueAmortizedIntoEarningsYears_59412e8c-21cc-4873-9e7d-699f4634abdf\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_86f72247-abe7-4345-805f-830a834c5f6a\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited\"/>\n    <link:presentationArc order=\"18\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_86f72247-abe7-4345-805f-830a834c5f6a\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_9edd6ce6-34e9-41d2-8650-8d0b59461064\" 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<link:presentationArc order=\"21\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDescription_bec2b77b-e443-4841-8e36-151452d57f4f\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_fbbef367-d384-4f74-88ee-41a0b77e51d3\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted\"/>\n    <link:presentationArc order=\"22\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_fbbef367-d384-4f74-88ee-41a0b77e51d3\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_aef38b64-72c0-4e35-b3f8-3e3c1ce1cbec\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue\"/>\n    <link:presentationArc order=\"23\" xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/parent-child\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" 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xlink:to=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_0f07fb5c-6b8c-4521-b188-f848bbf8b6fc\" xlink:type=\"arc\" preferredLabel=\"http://www.xbrl.org/2003/role/terseLabel\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate_bcf7267c-5eef-47ce-8543-13d3cfb7009\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\" 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<link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward_6d60460b-3672-4c55-ac00-40606a6203fd\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward_6d60460b-3672-4c55-ac00-40606a6203fd\" xlink:type=\"arc\" order=\"2\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_DistributionsPercentBeforeMeasurementDate_0b0cc33f-1016-411d-b28d-593ec7ebd8d4\" xlink:href=\"bxp-20231231.xsd#bxp_DistributionsPercentBeforeMeasurementDate\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_DistributionsPercentBeforeMeasurementDate_0b0cc33f-1016-411d-b28d-593ec7ebd8d4\" xlink:type=\"arc\" order=\"3\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_03964204-8606-4f01-92f1-780580b26e96\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" 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xlink:type=\"locator\" xlink:label=\"loc_bxp_EarnedwardsTarget_f99a2175-40e6-4a44-8fe4-c1f7322870ff\" xlink:href=\"bxp-20231231.xsd#bxp_EarnedwardsTarget\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_EarnedwardsTarget_f99a2175-40e6-4a44-8fe4-c1f7322870ff\" xlink:type=\"arc\" order=\"13\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_2d80b314-0313-4c87-8034-96ff5b2b07e6\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_2d80b314-0313-4c87-8034-96ff5b2b07e6\" xlink:type=\"arc\" order=\"14\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_ValueOfMyltipAwards_2c351f84-f003-4242-8e69-8c789e56f7de\" xlink:href=\"bxp-20231231.xsd#bxp_ValueOfMyltipAwards\"/>\n    <link:definitionArc xlink:arcrole=\"http://xbrl.org/int/dim/arcrole/domain-member\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_de4329ed-3e9f-4fac-9d75-baa7a07d9800\" xlink:to=\"loc_bxp_ValueOfMyltipAwards_2c351f84-f003-4242-8e69-8c789e56f7de\" xlink:type=\"arc\" order=\"15\"/>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MYLTIPValueAmortizedIntoEarningsYears_59412e8c-21cc-4873-9e7d-699f4634abdf\" 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<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_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_eabd6508-c48f-4af5-9dfe-c725d6741ec6_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Award Type [Domain]</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Award Type [Domain]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_VestingDomain\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingDomain\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_VestingDomain\" xlink:to=\"lab_us-gaap_VestingDomain\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_VestingDomain_d4278023-71f3-45fd-848f-c03ad9fc6c2a_terseLabel_en-US\" xlink:label=\"lab_us-gaap_VestingDomain\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Vesting [Domain]</link:label>\n    <link:label id=\"lab_us-gaap_VestingDomain_label_en-US\" xlink:label=\"lab_us-gaap_VestingDomain\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Vesting [Domain]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MYLTIPTwoThousandTwentyFourMember\" xlink:href=\"bxp-20231231.xsd#bxp_MYLTIPTwoThousandTwentyFourMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_MYLTIPTwoThousandTwentyFourMember\" xlink:to=\"lab_bxp_MYLTIPTwoThousandTwentyFourMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_MYLTIPTwoThousandTwentyFourMember_3af4cc91-ada8-478b-b8da-382c067a855a_terseLabel_en-US\" xlink:label=\"lab_bxp_MYLTIPTwoThousandTwentyFourMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP 2024</link:label>\n    <link:label id=\"lab_bxp_MYLTIPTwoThousandTwentyFourMember_label_en-US\" xlink:label=\"lab_bxp_MYLTIPTwoThousandTwentyFourMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP Two Thousand Twenty Four [Member]</link:label>\n    <link:label id=\"lab_bxp_MYLTIPTwoThousandTwentyFourMember_documentation_en-US\" xlink:label=\"lab_bxp_MYLTIPTwoThousandTwentyFourMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP Two Thousand Twenty Four</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_DistributionsPercentBeforeMeasurementDate\" xlink:href=\"bxp-20231231.xsd#bxp_DistributionsPercentBeforeMeasurementDate\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_DistributionsPercentBeforeMeasurementDate\" xlink:to=\"lab_bxp_DistributionsPercentBeforeMeasurementDate\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_DistributionsPercentBeforeMeasurementDate_dc2eb773-99c2-470f-b9a6-6f5be07134ad_terseLabel_en-US\" xlink:label=\"lab_bxp_DistributionsPercentBeforeMeasurementDate\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Distributions percent before measurement date</link:label>\n    <link:label id=\"lab_bxp_DistributionsPercentBeforeMeasurementDate_label_en-US\" xlink:label=\"lab_bxp_DistributionsPercentBeforeMeasurementDate\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Distributions Percent Before Measurement Date</link:label>\n    <link:label id=\"lab_bxp_DistributionsPercentBeforeMeasurementDate_documentation_en-US\" xlink:label=\"lab_bxp_DistributionsPercentBeforeMeasurementDate\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Distributions Percent Before Measurement Date</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate_82c09a28-4cfc-41e7-9367-81129a2874d8_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Employee discount</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Offering Date</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_8f0afcdb-9686-4ed9-b2b5-9e616f284f91_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Weighted Average Exercise Price</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_77cc1a74-2125-4d10-8524-c121bea67769_periodStartLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice\" xlink:role=\"http://www.xbrl.org/2003/role/periodStartLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Beginning outstanding, Weighted-average Exercise Price</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_7a17ad56-40ac-4501-a29a-49b3d2d82c09_periodEndLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice\" xlink:role=\"http://www.xbrl.org/2003/role/periodEndLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Ending outstanding, Weighted-average Exercise Price</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MYLTIPTwoThousandTwentyOneMember\" xlink:href=\"bxp-20231231.xsd#bxp_MYLTIPTwoThousandTwentyOneMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_MYLTIPTwoThousandTwentyOneMember\" xlink:to=\"lab_bxp_MYLTIPTwoThousandTwentyOneMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_MYLTIPTwoThousandTwentyOneMember_7a4aa6d5-ab97-4a46-9e69-311796e5715e_terseLabel_en-US\" xlink:label=\"lab_bxp_MYLTIPTwoThousandTwentyOneMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP 2021</link:label>\n    <link:label id=\"lab_bxp_MYLTIPTwoThousandTwentyOneMember_label_en-US\" xlink:label=\"lab_bxp_MYLTIPTwoThousandTwentyOneMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP Two Thousand Twenty One [Member]</link:label>\n    <link:label id=\"lab_bxp_MYLTIPTwoThousandTwentyOneMember_documentation_en-US\" xlink:label=\"lab_bxp_MYLTIPTwoThousandTwentyOneMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIPS Two Thousand Twenty One</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_A2012OPPUnitsAndVestedMYLTIPsMember\" xlink:href=\"bxp-20231231.xsd#bxp_A2012OPPUnitsAndVestedMYLTIPsMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_A2012OPPUnitsAndVestedMYLTIPsMember\" xlink:to=\"lab_bxp_A2012OPPUnitsAndVestedMYLTIPsMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_A2012OPPUnitsAndVestedMYLTIPsMember_f79e64fe-0682-4b33-a821-d303921a69a8_terseLabel_en-US\" xlink:label=\"lab_bxp_A2012OPPUnitsAndVestedMYLTIPsMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">2012 OPP Units and Vested MYLTIPs</link:label>\n    <link:label id=\"lab_bxp_A2012OPPUnitsAndVestedMYLTIPsMember_label_en-US\" xlink:label=\"lab_bxp_A2012OPPUnitsAndVestedMYLTIPsMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">2012 OPP Units and Vested MYLTIPs [Member]</link:label>\n    <link:label id=\"lab_bxp_A2012OPPUnitsAndVestedMYLTIPsMember_documentation_en-US\" xlink:label=\"lab_bxp_A2012OPPUnitsAndVestedMYLTIPsMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">2012 OPP Units and Vested MYLTIPs</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_4fca8c30-6b12-499e-832b-cffecaee0d3e_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Vesting Period</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_8b2bd108-41fb-4045-8655-4bbaf03215cd_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Exercisable, Weighted Average Exercise Price</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_OtherThanStockOptionsAwardsConversionRatio\" xlink:href=\"bxp-20231231.xsd#bxp_OtherThanStockOptionsAwardsConversionRatio\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_OtherThanStockOptionsAwardsConversionRatio\" xlink:to=\"lab_bxp_OtherThanStockOptionsAwardsConversionRatio\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_OtherThanStockOptionsAwardsConversionRatio_b164c5ec-03cc-4d4d-99fa-d0fa5fecfa94_terseLabel_en-US\" xlink:label=\"lab_bxp_OtherThanStockOptionsAwardsConversionRatio\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Than Stock Options Awards Conversion Ratio</link:label>\n    <link:label id=\"lab_bxp_OtherThanStockOptionsAwardsConversionRatio_label_en-US\" xlink:label=\"lab_bxp_OtherThanStockOptionsAwardsConversionRatio\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Than Stock Options Awards Conversion Ratio</link:label>\n    <link:label id=\"lab_bxp_OtherThanStockOptionsAwardsConversionRatio_documentation_en-US\" xlink:label=\"lab_bxp_OtherThanStockOptionsAwardsConversionRatio\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">Other Than Stock Options Awards Conversion Ratio</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward_d5f1b415-b434-42fc-89f5-849310f8a650_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MYLTIPMember\" xlink:href=\"bxp-20231231.xsd#bxp_MYLTIPMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_MYLTIPMember\" xlink:to=\"lab_bxp_MYLTIPMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_MYLTIPMember_16825993-b6b8-4793-96f5-2074705ca6b5_terseLabel_en-US\" xlink:label=\"lab_bxp_MYLTIPMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP</link:label>\n    <link:label id=\"lab_bxp_MYLTIPMember_label_en-US\" xlink:label=\"lab_bxp_MYLTIPMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP [Member]</link:label>\n    <link:label id=\"lab_bxp_MYLTIPMember_documentation_en-US\" xlink:label=\"lab_bxp_MYLTIPMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_69732e48-3f34-4714-92ba-7c6ebb9f6921_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Common stock available for issuance</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_515ac91f-0a9f-44c4-bfb2-9a30ce8f9be8_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Number Exercisable</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased_2bcc170d-63f9-4dcd-88c6-940a04f45105_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Weighted Average Price of Shares Purchased</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Per Share Weighted Average Price of Shares Purchased</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_PlanNameDomain\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameDomain\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_PlanNameDomain\" xlink:to=\"lab_us-gaap_PlanNameDomain\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_PlanNameDomain_03196a42-0b79-496d-a34e-01e46703673c_terseLabel_en-US\" xlink:label=\"lab_us-gaap_PlanNameDomain\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Plan Name [Domain]</link:label>\n    <link:label id=\"lab_us-gaap_PlanNameDomain_label_en-US\" xlink:label=\"lab_us-gaap_PlanNameDomain\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Plan Name [Domain]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_srt_RangeAxis\" xlink:href=\"https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_srt_RangeAxis\" xlink:to=\"lab_srt_RangeAxis\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_srt_RangeAxis_2918046a-e023-4344-955a-5a0da235debf_terseLabel_en-US\" xlink:label=\"lab_srt_RangeAxis\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Range [Axis]</link:label>\n    <link:label id=\"lab_srt_RangeAxis_label_en-US\" xlink:label=\"lab_srt_RangeAxis\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Statistical Measurement [Axis]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MYLTIPtwothousandnineteenMember\" xlink:href=\"bxp-20231231.xsd#bxp_MYLTIPtwothousandnineteenMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_MYLTIPtwothousandnineteenMember\" xlink:to=\"lab_bxp_MYLTIPtwothousandnineteenMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_MYLTIPtwothousandnineteenMember_1e4b485e-ba13-446e-ae91-d9eba58ae2f1_terseLabel_en-US\" xlink:label=\"lab_bxp_MYLTIPtwothousandnineteenMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP 2019 [Member]</link:label>\n    <link:label id=\"lab_bxp_MYLTIPtwothousandnineteenMember_label_en-US\" xlink:label=\"lab_bxp_MYLTIPtwothousandnineteenMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP two thousand nineteen [Member]</link:label>\n    <link:label id=\"lab_bxp_MYLTIPtwothousandnineteenMember_documentation_en-US\" xlink:label=\"lab_bxp_MYLTIPtwothousandnineteenMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP two thousand nineteen [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_bxp_MYLTIPvestingtwothousandtwentytwoMember\" xlink:href=\"bxp-20231231.xsd#bxp_MYLTIPvestingtwothousandtwentytwoMember\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_bxp_MYLTIPvestingtwothousandtwentytwoMember\" xlink:to=\"lab_bxp_MYLTIPvestingtwothousandtwentytwoMember\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_bxp_MYLTIPvestingtwothousandtwentytwoMember_8e36c25e-a9e9-4e74-a6ef-c958b206a0c3_terseLabel_en-US\" xlink:label=\"lab_bxp_MYLTIPvestingtwothousandtwentytwoMember\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP vesting 2022</link:label>\n    <link:label id=\"lab_bxp_MYLTIPvestingtwothousandtwentytwoMember_label_en-US\" xlink:label=\"lab_bxp_MYLTIPvestingtwothousandtwentytwoMember\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP vesting two thousand twenty two [Member]</link:label>\n    <link:label id=\"lab_bxp_MYLTIPvestingtwothousandtwentytwoMember_documentation_en-US\" xlink:label=\"lab_bxp_MYLTIPvestingtwothousandtwentytwoMember\" xlink:role=\"http://www.xbrl.org/2003/role/documentation\" xlink:type=\"resource\" xml:lang=\"en-US\">MYLTIP vesting 2022 [Member]</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited\" xlink:to=\"lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_8576e4ad-fa49-4787-abc5-99bd6748ca8a_terseLabel_en-US\" xlink:label=\"lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Stock Issued During Period, Shares, Share-based Compensation, Forfeited</link:label>\n    <link:label id=\"lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_label_en-US\" xlink:label=\"lab_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Shares Issued, Shares, Share-Based Payment Arrangement, Forfeited</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_6087af5b-c035-4336-aeb4-07bc8739e1a3_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Number of Additional Shares Authorized</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_label_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized\" xlink:role=\"http://www.xbrl.org/2003/role/label\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized</link:label>\n    <link:loc xlink:type=\"locator\" xlink:label=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems\" xlink:href=\"https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems\"/>\n    <link:labelArc xlink:arcrole=\"http://www.xbrl.org/2003/arcrole/concept-label\" xlink:from=\"loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems\" xlink:to=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems\" xlink:type=\"arc\" order=\"1\"/>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_275e4716-e785-4a9a-8780-7dff4e27e74a_terseLabel_en-US\" xlink:label=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems\" xlink:role=\"http://www.xbrl.org/2003/role/terseLabel\" xlink:type=\"resource\" xml:lang=\"en-US\">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>\n    <link:label id=\"lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_label_en-US\" xlink:\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/20231231\" 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-20231231.xsd\" xlink:type=\"simple\"/>\n\t<context id=\"c-727\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:RangeAxis\">srt:MaximumMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:PlanNameAxis\">bxp:TwoThousandTwentyOneStockIncentivePlanMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2021-05-20</instant>\n        </period>\n    </context>\n\t<context id=\"c-730\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:RangeAxis\">srt:MinimumMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:AwardTypeAxis\">bxp:MYLTIPTwoThousandTwentyThreeMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"dei:LegalEntityAxis\">bxp:BostonPropertiesLimitedPartnershipMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2023-02-07</instant>\n        </period>\n    </context>\n\t<context id=\"c-731\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:RangeAxis\">srt:MaximumMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:AwardTypeAxis\">bxp:MYLTIPTwoThousandTwentyThreeMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"dei:LegalEntityAxis\">bxp:BostonPropertiesLimitedPartnershipMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2023-02-07</instant>\n        </period>\n    </context>\n\t<context id=\"c-732\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:RangeAxis\">bxp:TargetMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:AwardTypeAxis\">bxp:MYLTIPTwoThousandTwentyThreeMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"dei:LegalEntityAxis\">bxp:BostonPropertiesLimitedPartnershipMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2023-02-07</instant>\n        </period>\n    </context>\n\t<context id=\"c-760\">\n        <entity>\n            <identifier 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<instant>2024-01-25</instant>\n        </period>\n    </context>\n\t<context id=\"c-789\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"srt:RangeAxis\">bxp:TargetMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:AwardTypeAxis\">bxp:MYLTIPTwoThousandTwentyFourMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:SubsequentEventTypeAxis\">us-gaap:SubsequentEventMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"dei:LegalEntityAxis\">bxp:BostonPropertiesLimitedPartnershipMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <instant>2024-01-25</instant>\n        </period>\n    </context>\n\t<context id=\"c-728\">\n        <entity>\n            <identifier 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</period>\n    </context>\n\t<context id=\"c-531\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:AwardTypeAxis\">bxp:MYLTIPtwothousandnineteenMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <startDate>2022-02-04</startDate>\n            <endDate>2022-02-04</endDate>\n        </period>\n    </context>\n\t<context id=\"c-533\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:AwardTypeAxis\">bxp:MYLTIPTwoThousandTwentyMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <startDate>2023-02-03</startDate>\n            <endDate>2023-02-03</endDate>\n        </period>\n    </context>\n\t<context id=\"c-793\">\n        <entity>\n            <identifier scheme=\"http://www.sec.gov/CIK\">0001037540</identifier>\n            <segment>\n                <xbrldi:explicitMember dimension=\"us-gaap:AwardTypeAxis\">bxp:MYLTIPTwoThousandTwentyOneMember</xbrldi:explicitMember>\n                <xbrldi:explicitMember dimension=\"us-gaap:SubsequentEventTypeAxis\">us-gaap:SubsequentEventMember</xbrldi:explicitMember>\n            </segment>\n        </entity>\n        <period>\n            <startDate>2024-02-01</startDate>\n            <endDate>2024-02-01</endDate>\n        </period>\n    </context>\n\t<unit id=\"usd\">\n        <measure>iso4217:USD</measure>\n    </unit>\n\t<unit id=\"shares\">\n        <measure>shares</measure>\n    </unit>\n\t<unit id=\"usdPerShare\">\n        <divide>\n            <unitNumerator>\n                <measure>iso4217:USD</measure>\n            </unitNumerator>\n            <unitDenominator>\n                <measure>shares</measure>\n            </unitDenominator>\n        </divide>\n    </unit>\n\t<unit id=\"number\">\n        <measure>pure</measure>\n    </unit>\n\t<unit id=\"real_estate_properties\">\n        <measure>bxp:Real_Estate_Properties</measure>\n    </unit>\n\t<unit id=\"y\">\n        <measure>utr:Y</measure>\n    </unit>\n\t<unit id=\"sqft\">\n        <measure>utr:sqft</measure>\n    </unit>\n\t<unit id=\"acre\">\n        <measure>utr:acre</measure>\n    </unit>\n\t<unit id=\"buildings\">\n        <measure>bxp:buildings</measure>\n    </unit>\n\t<unit id=\"building\">\n        <measure>bxp:Building</measure>\n    </unit>\n\t<unit id=\"vehicles\">\n        <measure>bxp:Vehicles</measure>\n    </unit>\n\t<unit id=\"year\">\n        <measure>bxp:Year</measure>\n    </unit>\n\t<unit id=\"integer\">\n        <measure>bxp:Integer</measure>\n    </unit>\n\t<unit id=\"floor\">\n        <measure>bxp:floor</measure>\n    </unit>\n\t<unit id=\"rate\">\n        <measure>utr:Rate</measure>\n    </unit>\n\t<unit id=\"m\">\n        <measure>utr:M</measure>\n    </unit>\n\t<unit id=\"buildings2\">\n        <measure>bxp:Buildings</measure>\n    </unit>\n\t<unit id=\"days\">\n        <measure>bxp:days</measure>\n    </unit>\n\t<unit id=\"nonemployeedirectors\">\n        <measure>bxp:nonemployeedirectors</measure>\n    </unit>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef=\"c-727\" decimals=\"-3\" id=\"f-3196\" unitRef=\"shares\">5400000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef=\"c-730\" decimals=\"-3\" id=\"f-3199\" unitRef=\"shares\">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef=\"c-731\" decimals=\"INF\" id=\"f-3200\" unitRef=\"shares\">322053</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef=\"c-732\" decimals=\"INF\" id=\"f-3201\" unitRef=\"shares\">161026</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef=\"c-760\" decimals=\"-3\" id=\"f-3277\" unitRef=\"shares\">250000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef=\"c-787\" decimals=\"INF\" id=\"f-3321\" unitRef=\"shares\">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef=\"c-788\" decimals=\"INF\" id=\"f-3322\" unitRef=\"shares\">330479</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef=\"c-789\" decimals=\"INF\" id=\"f-3323\" unitRef=\"shares\">165240</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>\n\t<bxp:ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanExpirationPeriod contextRef=\"c-728\" id=\"f-3197\">P10Y</bxp:ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanExpirationPeriod>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward contextRef=\"c-729\" id=\"f-3198\">The 2023 MYLTIP awards consist of two, equally weighted (50% each) components that utilize BXP\u2019s TSR over a three-year measurement period as the performance metrics.</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward contextRef=\"c-786\" id=\"f-3320\">The 2024 MYLTIP awards consists of three components.  Two of the components, each weighted 40%, utilize BXP\u2019s TSR over a three year measurement period as the performance metrics and the third component utilizes a leverage ratio as the performance metric.</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward>\n\t<bxp:DistributionsPercentBeforeMeasurementDate contextRef=\"c-729\" decimals=\"3\" id=\"f-3203\" unitRef=\"number\">0.10</bxp:DistributionsPercentBeforeMeasurementDate>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1 contextRef=\"c-150\" id=\"f-1401\">P3Y0M0D</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1 contextRef=\"c-525\" id=\"f-2481\">P3Y0M0D</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1 contextRef=\"c-729\" id=\"f-3204\">P3Y0M0D</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1 contextRef=\"c-1\" id=\"f-3226\">P4Y0M0D</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights contextRef=\"c-729\" id=\"f-3202\">Earned awards (if any) will vest 100% on February 6, 2026, but, in general, may not be converted, redeemed, sold or otherwise transferred for one additional year thereafter.</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-528\" decimals=\"-5\" id=\"f-2484\" unitRef=\"usd\">4600000</bxp:ValueOfMyltipAwards>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-532\" decimals=\"-5\" id=\"f-2489\" unitRef=\"usd\">8600000</bxp:ValueOfMyltipAwards>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-534\" decimals=\"-3\" id=\"f-2492\" unitRef=\"usd\">3800000</bxp:ValueOfMyltipAwards>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-733\" decimals=\"-5\" id=\"f-3205\" unitRef=\"usd\">13100000</bxp:ValueOfMyltipAwards>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-534\" decimals=\"-3\" id=\"f-3207\" unitRef=\"usd\">3800000</bxp:ValueOfMyltipAwards>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-532\" decimals=\"-3\" id=\"f-3210\" unitRef=\"usd\">8600000</bxp:ValueOfMyltipAwards>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-528\" decimals=\"-3\" id=\"f-3213\" unitRef=\"usd\">4600000</bxp:ValueOfMyltipAwards>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-790\" decimals=\"-3\" id=\"f-3324\" unitRef=\"usd\">11100000</bxp:ValueOfMyltipAwards>\n\t<bxp:ValueOfMyltipAwards contextRef=\"c-794\" decimals=\"-3\" id=\"f-3331\" unitRef=\"usd\">12600000</bxp:ValueOfMyltipAwards>\n\t<us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationForfeited contextRef=\"c-1\" decimals=\"INF\" id=\"f-3269\" unitRef=\"shares\">-103641</us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationForfeited>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted contextRef=\"c-757\" decimals=\"-3\" id=\"f-3255\" unitRef=\"shares\">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted contextRef=\"c-758\" decimals=\"-3\" id=\"f-3256\" unitRef=\"shares\">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted contextRef=\"c-759\" decimals=\"-3\" id=\"f-3257\" unitRef=\"shares\">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef=\"c-36\" decimals=\"2\" id=\"f-3260\" unitRef=\"usdPerShare\">96.97</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef=\"c-52\" decimals=\"2\" id=\"f-3264\" unitRef=\"usdPerShare\">97.01</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef=\"c-11\" decimals=\"2\" id=\"f-3268\" unitRef=\"usdPerShare\">97.01</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef=\"c-10\" decimals=\"2\" id=\"f-3272\" unitRef=\"usdPerShare\">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef=\"c-11\" decimals=\"2\" id=\"f-3275\" unitRef=\"usdPerShare\">97.01</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef=\"c-52\" decimals=\"2\" id=\"f-3276\" unitRef=\"usdPerShare\">97.01</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate contextRef=\"c-761\" decimals=\"3\" id=\"f-3278\" unitRef=\"number\">0.85</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased contextRef=\"c-760\" decimals=\"2\" id=\"f-3283\" unitRef=\"usdPerShare\">51.93</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased contextRef=\"c-764\" decimals=\"2\" id=\"f-3284\" unitRef=\"usdPerShare\">87.30</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased contextRef=\"c-765\" decimals=\"2\" id=\"f-3285\" unitRef=\"usdPerShare\">89.73</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased>\n\t<bxp:Finalawardspercentageoftarget contextRef=\"c-527\" decimals=\"3\" id=\"f-2483\" unitRef=\"number\">0.292</bxp:Finalawardspercentageoftarget>\n\t<bxp:Finalawardspercentageoftarget contextRef=\"c-531\" decimals=\"2\" id=\"f-2488\" unitRef=\"number\">0.690</bxp:Finalawardspercentageoftarget>\n\t<bxp:Finalawardspercentageoftarget contextRef=\"c-533\" decimals=\"2\" id=\"f-2491\" unitRef=\"number\">0.50</bxp:Finalawardspercentageoftarget>\n\t<bxp:Finalawardspercentageoftarget contextRef=\"c-533\" decimals=\"2\" id=\"f-3206\" unitRef=\"number\">0.50</bxp:Finalawardspercentageoftarget>\n\t<bxp:Finalawardspercentageoftarget contextRef=\"c-531\" decimals=\"2\" id=\"f-3209\" unitRef=\"number\">0.690</bxp:Finalawardspercentageoftarget>\n\t<bxp:Finalawardspercentageoftarget contextRef=\"c-527\" decimals=\"3\" id=\"f-3212\" unitRef=\"number\">0.292</bxp:Finalawardspercentageoftarget>\n\t<bxp:Finalawardspercentageoftarget contextRef=\"c-793\" decimals=\"2\" id=\"f-3330\" unitRef=\"number\">1.12</bxp:Finalawardspercentageoftarget>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures contextRef=\"c-527\" decimals=\"0\" id=\"f-2485\" unitRef=\"shares\">285925</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures contextRef=\"c-531\" decimals=\"0\" id=\"f-2490\" unitRef=\"shares\">144043</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures contextRef=\"c-533\" decimals=\"0\" id=\"f-2493\" unitRef=\"shares\">152460</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures contextRef=\"c-533\" decimals=\"0\" id=\"f-3208\" unitRef=\"shares\">152460</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures contextRef=\"c-531\" decimals=\"0\" id=\"f-3211\" unitRef=\"shares\">144043</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures contextRef=\"c-527\" decimals=\"0\" id=\"f-3214\" unitRef=\"shares\">285925</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures>\n\t<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures contextRef=\"c-793\" decimals=\"0\" id=\"f-3332\" unitRef=\"shares\">155625</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures>\n\t</xbrl>\n\n\n\n##US GAAP Taxonomy\n[Concept Core]\nID: srt:RangeAxis\nLabel: Statistical Measurement [Axis]\nType: xbrli:stringItemType | Balance: None | PeriodType: duration | Abstract: True\nStatus: None | DeprecatedLabel: None | DeprecatedDate: None\nDocumentation:\nInformation by statistical measurement. 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(role=http://fasb.org/us-gaap/role/disclosure/SECScheduleArticle12-29MortgageLoansOnRealEstateMortgageLoansOnRealEstateScheduleTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/SECScheduleArticle12-29MortgageLoansOnRealEstateMortgageLoansOnRealEstateScheduleTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/SECScheduleArticle12-29MortgageLoansOnRealEstateMortgageLoansOnRealEstateScheduleTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsStockCompensationScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsStockCompensationScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsStockCompensationScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:FederalHomeLoanBankAdvancesTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesFederalHomeLoanBanksFederalHomeLoanBankAdvancesTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesFederalHomeLoanBanksFederalHomeLoanBankAdvancesTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/FinancialServicesFederalHomeLoanBanksFederalHomeLoanBankAdvancesTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:SupplierFinanceProgramTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/PayablesAndAccrualsSupplierFinanceProgramTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/PayablesAndAccrualsSupplierFinanceProgramTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/PayablesAndAccrualsSupplierFinanceProgramTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ScheduleOfPropertyPlantAndEquipmentTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/AccountingPoliciesScheduleOfPropertyPlantAndEquipmentTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/AccountingPoliciesScheduleOfPropertyPlantAndEquipmentTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/AccountingPoliciesScheduleOfPropertyPlantAndEquipmentTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:DebtSecuritiesAvailableForSaleTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesDebtSecuritiesAvailableForSaleTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesDebtSecuritiesAvailableForSaleTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesDebtSecuritiesAvailableForSaleTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ScheduleOfHeldToMaturitySecuritiesTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfHeldToMaturitySecuritiesTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfHeldToMaturitySecuritiesTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/InvestmentsDebtAndEquitySecuritiesScheduleOfHeldToMaturitySecuritiesTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ScheduleOfPropertyPlantAndEquipmentTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:SiteContingencyTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligationsSiteContingencyTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligationsSiteContingencyTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligationsSiteContingencyTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:ScheduleOfEnvironmentalExitCostTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligationsScheduleOfEnvironmentalExitCostTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligationsScheduleOfEnvironmentalExitCostTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligationsScheduleOfEnvironmentalExitCostTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:LossContingenciesTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesLossContingenciesTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesLossContingenciesTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesLossContingenciesTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:DebtInstrumentTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/DebtDebtInstrumentTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/DebtDebtInstrumentTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/DebtDebtInstrumentTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:DefinedBenefitPlanPlanAssetsAllocationTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/IncomeTaxesSignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/IncomeTaxesSignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/IncomeTaxesSignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleTable)\n- http://xbrl.org/int/dim/arcrole/hypercube-dimension: from=us-gaap:IncomeTaxExaminationTable -> to=srt:RangeAxis (role=http://fasb.org/us-gaap/role/disclosure/IncomeTaxesIncomeTaxExaminationTable)\n- http://xbrl.org/int/dim/arcrole/dimension-domain: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/IncomeTaxesIncomeTaxExaminationTable)\n- http://xbrl.org/int/dim/arcrole/dimension-default: from=srt:RangeAxis -> to=srt:RangeMember (role=http://fasb.org/us-gaap/role/disclosure/In\n\nQuestion: What erroneous relationship type exists between srt:RangeAxis and bxp:TargetMember, based on the provided XBRL filing and the US GAAP taxonomy?\nAnswer:\n\n    "

Answer: "CombinationErr"