| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 198473 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 267603 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 34857 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 262432 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | RELIEF OF THE POOR AND DISTRESSED, A PUBLIC OBJECTIVE ACHIEVED THROUGH THE FOSTERING, OWNERSHIP, DEVELOPMENT AND/OR OPERATION OF SAFE AND SANITARY AFFORDABLE HOUSING IN THE CITY OF BUFFALO, NEW YORK. |
| IRS990/AllAffiliatesIncludedInd | 0 | 1 |
| IRS990/AllOtherContributionsAmt | 0 | 207375 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 5267 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 4592 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 9859 |
| IRS990/AmendedReturnInd | 0 | X |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | DAWN WELLS-CLYBURN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7168840356 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 271 GRANT STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BUFFALO |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 14213 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 241927 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 497730 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 337500 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 527 W UTICA STREET |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | BUFFALO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 14213 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | HOUSING VISIONS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CONSTRUCTION |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 417445 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 0 |
| IRS990/CYOtherExpensesAmt | 0 | 859040 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 1047434 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -134279 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 740118 |
| IRS990/CYTotalExpensesAmt | 0 | 1599158 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1464879 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 55019 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 249413 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 72893 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 72893 |
| IRS990/Desc | 0 | HOUSING DEVELOPMENT BNSC HAS DEVELOPED AN INNOVATIVE PROGRAM WITH DOCUMENTED EFFECTIVENESS TO ACQUIRE AND REHABILITATE RESIDENTIAL HOUSING AND VACANT LAND IN BUFFALO'S WEST SIDE. THE PROGRAM HAS ACCOMPLISHED RENOVATIONS OF MULTIPLE UNITS. BNSC ALSO INTEGRATES "GREEN" DEVELOPMENT INTO EACH OF ITS DEVELOPMENT PROJECTS INCLUDING A "NET ZERO" HOUSE ON WINTER STREET, INSTALLATION OF GREEN INFRASTRUCTURE SUCH AS ON-DEMAND WATER HEATERS, RADIANT FLOOR HEATING, SOLAR PANELS AND GEOTHERMAL HEATING SYSTEMS |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 14 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 204931 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 10100 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 10100 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 1755 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 1755 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 2108 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 13123 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 15231 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | JENNIFER MECOZZI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | AARON BARTLEY |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 43654 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 52530 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | EXECUTIVE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2009 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolAndSepBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 2 |
| IRS990/GovernmentGrantsAmt | 0 | 210070 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 1464879 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 98166 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 54441 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 152607 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 8404 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 8066 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 12066 |
| IRS990/InterestGrp/TotalAmt | 0 | 12066 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 210815 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 232974 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 125223 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 604046 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 697597 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 822820 |
| IRS990/LegalDomicileStateCd | 0 | NY |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | RELIEF OF THE POOR AND DISTRESSED, A PUBLIC OBJECTIVE ACHIEVED THROUGH THE FOSTERING, OWNERSHIP, DEVELOPMENT AND/OR OPERATION OF SAFE AND SANITARY AFFORDABLE HOUSING IN THE CITY OF BUFFALO, NEW YORK. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 265490 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 265459 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1099367 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 965088 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 22 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 11287 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 11309 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 1702 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 3448 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 5150 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 432103 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 546973 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 51501 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 51501 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROPERTY STABILIZATION |
| IRS990/OtherExpensesGrp/Desc | 1 | SUPPLIES & MATERIALS |
| IRS990/OtherExpensesGrp/Desc | 2 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/Desc | 3 | PAYROLL PROCESSING FEES |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 20506 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 16023 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 6274 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 297606 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 167394 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 36628 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 0 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 297606 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 187900 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 52651 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 6274 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 2585 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 515372 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 35000 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 525003 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 560003 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 128614 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 128614 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 76018 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 12764 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 17163 |
| IRS990/PrincipalOfficerNm | 0 | AARON BARTLEY |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 811000 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 531110 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 533110 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | MAINTENANCE FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | RENTAL INCOME |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | DEVELOPER FEES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 962910 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 80870 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 3654 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 962910 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 80870 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 3654 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | PUSH BLUE- THIS NEWEST VENTURE HAS UNDERTAKEN A MAJOR INITIATIVE TO PROMOTE GREEN INFRASTRUCTURE, STORMWATER MANAGEMENT, AND GREEN JOBS. PUSH BLUE IS AN INTENSIVE EFFORT TO COMBAT BUFFALO'S COMBINED SEWER OVERFLOW (CSO) PROBLEM. PUSH WILL COMPLETE 25 GREEN INFRASTRUCTURE PROJECTS OVER THE NEXT TWO YEARS INCLUDING RAIN GARDENS, A GREEN ROOF, BIOSWALES AND RAINWATER CATCHMENT SYSTEMS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 582908 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 517391 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | COMMUNITY DEVELOPMENT- BNSC CONDUCTS COMMUNITY DEVELOPMENT ACTIVITIES WHICH INCLUDE LAND BANKING, PROPERTY STABILIZATION, GREEN INFRASTRUCTURE, LANDSCAPE MANAGEMENT AND COMMUNITY PLANNING PURPOSES. FOR FUTURE DEVELOPMENT PROJECTS, BNSC ACQUIRES AND HOLDS PROPERTIES. BNSC ALSO ACQUIRES AND HOLDS VACANT LOTS FOR NEIGHBORHOOD STABILIZATION PURPOSES. MANY OF THESE VACANT LOTS SERVE AS DEMONSTRATION PROJECTS SUCH AS COMMUNITY GARDENS (BNSC MANAGES 48 COMMUNITY PLOTS IN TWO GARDENS) AND RAIN GARDENS TO ADDRESS STORMWATER MANAGEMENT. BNSCS LANDSCAPE MANAGEMENT DEPARTMENT INCLUDES A WORK YARD FOR EQUIPMENT, TOOLS AND SUPPLIES STORAGE AND A GREENHOUSE AND NURSERY GARDEN FOR USE IN STORMWATER MANAGEMENT AND VACANT LOT MANAGEMENT... SEE SCHEDULE O. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 605056 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 394619 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 1073887 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 312756 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 144340 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 481257 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 424214 |
| IRS990/PYTotalExpensesAmt | 0 | 736970 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 1218227 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -134279 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 1 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 1 |
| IRS990/RevenueAmt | 0 | 135424 |
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| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1073887 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 730459 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 246440 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 322835 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 2791066 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 1162874 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.96720 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 2699579 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 91487 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
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| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 730459 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 246440 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 322835 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 2791066 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 2791066 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 671996 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 79187 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 751183 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 25601 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 46036 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 71637 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 1599158 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/InvstProgramRelatedOrgGrp/BookValueAmt | 0 | 232974 |
| IRS990ScheduleD/InvstProgramRelatedOrgGrp/Desc | 0 | PROPERTY HELD FOR DEVELOPMENT |
| IRS990ScheduleD/InvstProgramRelatedOrgGrp/MethodValuationCd | 0 | C |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 1000 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 1 | 379296 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 2 | 61402 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 3 | 2215 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 4 | 103060 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | DEPOSITS |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 1 | DUE FROM RELATED PARTY |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 2 | CONSTRUCTION IN PROGRESS |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 3 | ESCROW DEPOSITS |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 4 | DEVELOPMENT ADVANCES |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 515372 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | DUE TO RELATED PARTY |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 1464879 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | INCOME TAXES - NO PROVISION OR BENEFIT FOR INCOME TAXES HAS BEEN INCLUDED IN THESE FINANCIAL STATEMENTS SINCE THE ENTITY IS EXEMPT FROM FEDERAL INCOME TAXES, EXCEPT TAX ON UNRELATED BUSINESS INCOME, UNDER SECTION 501(A) OF THE INTERNAL REVENUE CODE AS AN ORGANIZATION DESCRIBED IN SECTION 501 (C)(3). THE ORGANIZATION IS ALSO EXEMPT FROM STATE INCOME TAXES UNDER THE PROVISIONS OF THE NEW YORK NONPROFIT CORPORATION LAW. THE ORGANIZATION HAD NO UNRELATED BUSINESS INCOME FOR THE YEAR ENDED DECEMBER 31, 2015. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 697597 |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 546973 |
| IRS990ScheduleD/TotalBookValueProgramRltdAmt | 0 | 232974 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 1599158 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 515372 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 1464879 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 1464879 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 1599158 |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | AMENDED RETURN EXPLANATION: DUE TO TURNOVER IN ACCOUNTING STAFF, THE INDEPENDENT AUDIT OF THE ORGANIZATION'S FINANCIAL STATEMENTS COULD NOT BE COMPLETED BY THE EXTENDED DUE DATE OF THE EXEMPT ORGANIZATION RETURNS. SUBSEQUENT TO FILING THE ORIGINAL RETURN, THE ORGANIZATION'S AUDITED FINANCIAL STATEMENTS WERE ISSUED WITH AN UNQUALIFIED OPINION AND THE ORGANIZATION'S RETURN WAS AMENDED TO CONFORM TO ITS FINANCIAL STATEMENTS. THE CHANGES MADE HAVE AFFECTED THE FOLLOWING AREAS OF THE RETURN: FORM 990, PAGES 1 THROUGH 12, SCHEDULE A, SCHEDULE B, SCHEDULE D AND SCHEDULE O. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | LAND BANK - BNSC ESTABLISHED A LAND BANK IN THE MASSACHUSETTS AVENUE CORRIDOR IN 2009 FOR THE PURPOSE OF ACQUIRING AND STABILIZING VACANT AND ABANDONED PROPERTY. SINCE THAT TIME THE LAND BANK HAS ACQUIRED CLOSE TO 50 PROPERTIES. SUBSTANTIAL FUNDING HAS COME FROM THE FEDERAL NEIGHBORHOOD STABILIZATION PROGRAM. THE LAND BANK PROVIDES A MECHANISM TO GAIN COMMUNITY CONTROL OVER PROPERTIES IN THE NEIGHBORHOOD WHILE A FUTURE REHABILITATION OR REDEVELOPMENT PLAN IS PRODUCED. BNSC HAS USED ITS LAND BANK PROPERTIES IN A VARIETY OF WAYS. BNSC HAS PARTNERED WITH HABITAT FOR HUMANITY BUFFALO AND HOME FRONT TO REDEVELOP HOUSES FOR HOME OWNERSHIP. BNSC HAS ALSO CREATED SIGNIFICANT NEW GREEN SPACE IN THE NEIGHBORHOOD, INCLUDING THE HAMPSHIRE STREET AND 14TH STREET COMMUNITY GARDENS, THE WEST FERRY BUTTERFLY GARDEN, AND THE SCHOOL 30 COMMUNITY GARDEN. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | LINE 7A EXPLANATION - THE SOLE MEMBER CORPORATION IN BNSC IS PEOPLE UNITED FOR SUSTAINABLE HOUSING, INC. (PUSH). THESE ENTITIES ARE ALSO RELATED THROUGH COMMON BOARD MEMBERS AND PUSH STAFF. THE ORGANIZATION IS GOVERNED BY A THREE-MEMBER BOARD OF DIRECTORS ELECTED BY THE PUSH BOARD OF DIRECTORS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | LINE 11A EXPLANATION - THE DRAFT FORM 990 IS REVIEWED IN DETAIL WITH THE SOLE MEMBER'S FINANCE COMMITTEE. THE TREASURER OF THE BOARD OF DIRECTORS OVERSEES THE NONATTEST SERVICES PROVIDED BY THE AUDITORS, INCLUDING PREPARATION OF THE FORM 990. THE SOLE MEMBER'S AUDIT COMMITTEE REVIEWS ALL REQUIRED SCHEDULES AND COMPARES THE FINANCIAL DATA TO THE AUDITED FINANCIAL STATEMENTS AND UNDERLYING SUPPORTING INFORMATION. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | THE ORGANIZATION HAS A WRITTEN CONFLICT OF INTEREST POLICY THAT IS MONITERED BY THE BOARD AND REVIEWED ANNUALLY. CONFLICT OF INTEREST STATEMENTS ARE REVIEWED BY A BOARD MEMBER FOR PROPRIETY ON AN ANNUAL BASIS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | OFFICERS AND KEY EMPLOYEES ARE NOT COMPENSATED BY THE ORGANIZATION |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | GOVERNING DOCUMENTS ARE AVAILABLE UPON REQUEST AND THROUGH THE NY ATTORNEY GENERAL'S WEBSITE |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 7 | OVERSIGHT OF AUDIT OF AUDIT OF FINANCIAL STATEMENTS: THE BOARD OF DIRECTORS AND MANAGEMENT PROVIDE OVERSIGHT FOR THE AUDIT OF THE FINANCIAL STATEMENTS AND THEIR SELECTION OF THE INDEPENDENT AUDITORS. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, ALL PARTS & ALL SCHEDULES |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART III, LINE 4C SUPPLEMENTAL INFO: |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART VI, SECTION A, LINE 7A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PART VI, SECTION B, LINE 11 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PART VI, SECTION B, LINE 12C |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | FORM 990, PART VI, SECTION B, LINE 15A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | FORM 990, PART VI, SECTION C, LINE 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 7 | FORM 990 PART XII LINE 2C |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 2 | MASSACHUSETTS AVENUE SUSTAINABLE HOMES |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/StateAbbreviationCd | 2 | NY |
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| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | NY |
| IRS990/SubjectToProxyTaxInd | 0 | 0 |
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| IRS990/TaxExemptBondsInd | 0 | 0 |
| IRS990/TempOrPermanentEndowmentsInd | 0 | 0 |
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