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        <ProgramServicesAmt>19976</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>36200</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>58804</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>52783</ProgramServicesAmt>
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        <ProgramServicesAmt>756293</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>Utilities</Desc>
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        <ProgramServicesAmt>267896</ProgramServicesAmt>
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      <OtherExpensesGrp>
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        <ManagementAndGeneralAmt>6659</ManagementAndGeneralAmt>
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        <EOYAmt>63334</EOYAmt>
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        <BOYAmt>223288</BOYAmt>
        <EOYAmt>339023</EOYAmt>
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        <EOYAmt>26315563</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>26654586</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-559190</ReconcilationRevenueExpnssAmt>
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      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
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      <AccountantCompileOrReviewInd>1</AccountantCompileOrReviewInd>
      <AcctCompileOrReviewBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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        <CurrentTaxYearAmt>1647001</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus4YearsAmt>25950</CurrentTaxYearMinus4YearsAmt>
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        <CurrentTaxYearMinus2YearsAmt>49207</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>47269</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>71221</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>1785167</CurrentTaxYearMinus1YearAmt>
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        <CurrentTaxYearMinus1YearAmt>548949</CurrentTaxYearMinus1YearAmt>
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      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus4YearsAmt>828966</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>895011</CurrentTaxYearMinus3YearsAmt>
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        <CurrentTaxYearMinus1YearAmt>726464</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>842915</CurrentTaxYearAmt>
        <TotalAmt>4103559</TotalAmt>
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      <PublicSupportTotal509Amt>5222138</PublicSupportTotal509Amt>
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      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>192887</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>214055</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>194792</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>198779</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>285212</CurrentTaxYearAmt>
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      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>2009091</CurrentTaxYearMinus4YearsAmt>
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        <TotalAmt>10411422</TotalAmt>
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      <InvestmentIncomePYPct>0.09600</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
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    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
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        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
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        <OtherCostOrOtherBasisAmt>1458079</OtherCostOrOtherBasisAmt>
        <BookValueAmt>1458079</BookValueAmt>
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      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>29341041</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>18518082</DepreciationAmt>
        <BookValueAmt>10822959</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>57322</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>57322</DepreciationAmt>
        <BookValueAmt>0</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>12281038</TotalBookValueLandBuildingsAmt>
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    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>0</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Various Tenants of the Building</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <NonCashAssistanceAmt>1581294</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>Appraisal</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>Difference between market rental rates and rate charged to tenants.</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>To provide below market rentals to nonprofit organizations.</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>75</Total501c3OrgCnt>
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    <IRS990ScheduleJ documentId="RetDoc1042400001">
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      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>1</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Jerry A Bilton</PersonNm>
        <TitleTxt>Executive Director</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>148526</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>296663</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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          <BusinessName>
            <BusinessNameLine1Txt>Longwood Foundation</BusinessNameLine1Txt>
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        </NameOfInterested>
        <RelationshipDescriptionTxt>Appoints two Board Members - related party</RelationshipDescriptionTxt>
        <TransactionAmt>87040</TransactionAmt>
        <TransactionDesc>Payment of rent at fair market value</TransactionDesc>
        <SharingOfRevenuesInd>0</SharingOfRevenuesInd>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>Mr. Martinenza, Ms. Reilly and Mr. Eleuthere du Pont are employed by the same organization.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Longwood Foundation has the authority to appoint two members; Welfare Foundation has the authority to appoint two members; Crestlea Foundation has the authority to appoint one member; United Way of Delaware has the authority to appoint 1 member; The CSB Tenants Council has the authority to appoint one member, and the President of the CSB Tenants' Council is automatically appointed.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990 is reviewed by the Executive Director and approved by the Executive Director and Board of Trustees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Board members are required annually to sign conflict of interest statements and disclose any known or potential conflicts of interest in these statements.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The executive director's annual compensation is reviewed annually and approved by the Board of Trustees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Governing documents and financial statements are held with the Corporation and are available upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>No changes from prior years</ExplanationTxt>
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        <USAddress>
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          <CityNm>Wilmington</CityNm>
          <StateAbbreviationCd>DE</StateAbbreviationCd>
          <ZIPCd>19801</ZIPCd>
        </USAddress>
        <EIN>510367670</EIN>
        <PrimaryActivitiesTxt>Make contributions to Community Service Building Corporation</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Exempt private found</PublicCharityStatusTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Longwood Foundation</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>100 West 10th St Suite 1109</AddressLine1Txt>
          <CityNm>Wilmington</CityNm>
          <StateAbbreviationCd>DE</StateAbbreviationCd>
          <ZIPCd>19801</ZIPCd>
        </USAddress>
        <EIN>510066734</EIN>
        <PrimaryActivitiesTxt>Provides grants to other nonprofit organizations</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Exempt private found</PublicCharityStatusTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>1</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>1</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Community Service Foundation</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>C</TransactionTypeTxt>
        <InvolvedAmt>197928</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>FMV - Cash Transfer</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Longwood Foundation</BusinessNameLine1Txt>
        </OtherOrganizationName>
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        <MethodOfAmountDeterminationTxt>Market Rate</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Community Service Foundation</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>N</TransactionTypeTxt>
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      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Community Service Foundation</BusinessNameLine1Txt>
        </OtherOrganizationName>
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</Return>