{"asOf":"2026-07-27T15:06:54.173Z","block":"800-899 DIAMOND ST","blockUrl":"https://philadelphia.blockreport.homes/block/800-899-diamond-st","address":"818 DIAMOND ST","parcelNumber":"201080450","source":"https://property.phila.gov/?p=201080450","ownerType":"investor","kind":"multi-family","isHouse":false,"home":true,"commercial":false,"residential":true,"taxExempt":false,"institutional":false,"buildingCode":"SR","buildingCodeNew":"06","buildingClass":"VACANT LAND RESIDE < ACRE","buildingClassNew":"CONTEMPORARY","useLabel":"Multi-family","owner":"DIAMOND STREET HOLDINGS LLC","coOwner":null,"marketValue":1142500,"landAssessment":228500,"improvementAssessment":914000,"livableArea":4890,"yearBuilt":2022,"lastSale":{"price":169000,"date":"2020-12-15T05:00:00Z"},"openViolations":0,"violations":[{"number":"1103110","date":"2007-04-13","code":"PM-306.0/91","title":"VACANT LOT KEEP CLEAN GET 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NOTICE","status":"CLOSEDCASE","resolutionDate":null,"resolution":null},{"number":"2168740","date":"2011-08-08","code":"PM-306.0/2","title":"VACANT LOT STANDARD","status":"CLOSEDCASE","resolutionDate":null,"resolution":null}],"violationCases":[{"number":"108659","type":"STANDARD","priority":"STANDARD","responsibility":"CLIP","status":"CLOSED","createdDate":"2007-04-13","completedDate":"2010-01-30","violations":[{"number":"1103110","date":"2007-04-13","code":"PM-306.0/91","title":"VACANT LOT KEEP CLEAN GET LIC","status":"COMPLIED","resolutionDate":null,"resolution":null},{"number":"1103109","date":"2007-04-13","code":"CP-01","title":"CLIP VIOLATION NOTICE","status":"COMPLIED","resolutionDate":null,"resolution":null}]},{"number":"239235","type":"STANDARD","priority":"STANDARD","responsibility":"CLIP","status":"CLOSED","createdDate":"2010-06-14","completedDate":"2010-07-22","violations":[{"number":"1717140","date":"2010-06-14","code":"CP-01","title":"CLIP VIOLATION NOTICE","status":"COMPLIED","resolutionDate":null,"resolution":null},{"number":"1717141","date":"2010-06-14","code":"PM-306.0/2","title":"VACANT LOT STANDARD","status":"COMPLIED","resolutionDate":null,"resolution":null}]},{"number":"262286","type":"STANDARD","priority":"STANDARD","responsibility":"CLIP","status":"CLOSED","createdDate":"2010-12-22","completedDate":"2011-01-11","violations":[{"number":"1928698","date":"2010-12-22","code":"PM-306.0/91","title":"VACANT LOT KEEP CLEAN GET LIC","status":"COMPLIED","resolutionDate":null,"resolution":null},{"number":"1928697","date":"2010-12-22","code":"CP-01","title":"CLIP VIOLATION NOTICE","status":"COMPLIED","resolutionDate":null,"resolution":null}]},{"number":"290601","type":"STANDARD","priority":"STANDARD","responsibility":"CLIP","status":"CLOSED","createdDate":"2011-08-08","completedDate":null,"violations":[{"number":"2168739","date":"2011-08-08","code":"CP-01","title":"CLIP VIOLATION NOTICE","status":"CLOSEDCASE","resolutionDate":null,"resolution":null},{"number":"2168740","date":"2011-08-08","code":"PM-306.0/2","title":"VACANT LOT STANDARD","status":"CLOSEDCASE","resolutionDate":null,"resolution":null}]}],"violYears":[{"y":2007,"n":2,"worst":null},{"y":2010,"n":4,"worst":null},{"y":2011,"n":2,"worst":null}],"investigations":[{"caseNumber":"12406","date":"2003-07-15","type":"L_INITIAL","status":"CLOSED"},{"caseNumber":"12406","date":"2005-05-04","type":"L_FINAL","status":"PASSED"},{"caseNumber":"CF-2022-007742","date":"2022-01-31","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-007742","date":"2022-01-31","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-007742","date":"2022-01-31","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-007742","date":"2022-02-01","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-007742","date":"2022-02-25","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-007742","date":"2022-03-16","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-007742","date":"2022-04-26","type":null,"status":"PASSED"}],"inspYears":[{"y":2005,"fails":0,"passes":1},{"y":2022,"fails":6,"passes":1}],"taxOwed":0,"taxSnapshot":{"available":true,"asOf":"2022-06","matched":false},"taxDelinquencySnapshotAsOf":"2022-06","taxDelinquencySnapshotAvailable":true,"lat":39.983445899628954,"lng":-75.14800235881208,"geom":{"type":"Polygon","coordinates":[[[-75.147933597,39.983516156],[-75.147965743,39.983365148],[-75.148070735,39.983371543],[-75.148036506,39.983530934],[-75.147933597,39.983516156]]]},"liDistrict":"CENTRAL EAST","certifications":[],"cityRecordAvailability":{"violations":true,"investigations":true,"appeals":true,"certifications":true,"permits":true,"licenses":true},"zip":"19122","beds":null,"baths":null,"stories":3,"lotArea":1640,"zoning":"CMX1","grade":null,"basement":"D","heater":null,"centralAir":true,"extCond":"1","intCond":"1","garage":2,"homestead":false,"mail":"P O BOX 48, LAKEWOOD NJ, 08701","mailOut":true,"appeals":[{"type":"Zoning board appeal","grounds":"PERMIT FOR THE ERECTION OF AN ATTACHED BUILDING WITH A ROOF DECK AND A ROOF DECK ACCESS STRUCTURE. SIZE AND LOCATION AS SHOWN ON SUBMITTED PLANS. FOR MULTIFAMILY HOUSEHOLD LIVING FOR FOUR (4) DWELLING UNITS.","status":"OPEN","outcome":"Granted","date":"2017-02-07","number":"29279","relatedPermit":"704835"}],"taxYears":[],"taxNet":0,"taxLien":false,"taxLedgerThrough":2016,"taxLedgerAvailable":true,"timesSold":2,"abated":true,"assessmentExemption":true,"exemptionBasisVerified":false,"valueSeries":[{"y":2016,"v":4900,"taxable":4900,"land":4900,"improvement":0,"taxableLand":4900,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":0},{"y":2017,"v":15400,"taxable":15400,"land":15400,"improvement":0,"taxableLand":15400,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":0},{"y":2018,"v":15400,"taxable":15400,"land":15400,"improvement":0,"taxableLand":15400,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":0},{"y":2021,"v":31900,"taxable":31900,"land":31900,"improvement":0,"taxableLand":31900,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":0},{"y":2022,"v":31900,"taxable":31900,"land":31900,"improvement":0,"taxableLand":31900,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":0},{"y":2023,"v":123000,"taxable":123000,"land":123000,"improvement":0,"taxableLand":123000,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":0},{"y":2024,"v":1055000,"taxable":211000,"land":211000,"improvement":844000,"taxableLand":211000,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":844000},{"y":2025,"v":1200000,"taxable":240000,"land":240000,"improvement":960000,"taxableLand":240000,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":960000},{"y":2026,"v":1200000,"taxable":240000,"land":240000,"improvement":960000,"taxableLand":240000,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":960000},{"y":2027,"v":1142500,"taxable":228500,"land":228500,"improvement":914000,"taxableLand":228500,"taxableImprovement":0,"exemptLand":0,"exemptImprovement":914000}],"taxNow":3360,"familyHeld":false,"lastTransferNominal":false,"permits":[{"number":"704835","date":"2017-10-20","work":"Zoning","type":"ZP_ZONING","description":"ZONING PERMIT","status":"COMPLETED","completedDate":"2017-10-20","scope":"FOR A LOT CONSOLIDATION TO CREATE ONE (1) LOT (LOT #1) FROM TWO (2) EXISTING LOTS (818 DIAMOND ST & 820 DIAMOND ST.) SIZE AND LOCATION AS SHOWN ON APPROVED PLANS."},{"number":"767267","date":"2018-01-10","work":"Zoning/use","type":"ZP_ZON/USE","description":"ZONING/USE PERMIT","status":"COMPLETED","completedDate":"2018-01-10","scope":"FOR THE ERECTION OF AN ATTACHED BUILDING WITH A ROOF DECK AND A ROOF DECK ACCESS STRUCTURE. SIZE AND LOCATION AS SHOWN ON APPROVED PLANS. FOR MULTIFAMILY HOUSEHOLD LIVING FOR FOUR (4) DWELLING UNITS AND TWO INTERIOR ACCESSORY PARKING SPACES. NO SIGNS ON THIS APPLICATION."},{"number":"1003524","date":"2021-01-08","work":"New Construction","type":"Building","description":"Commercial Building Permit","status":"Completed","completedDate":"2023-05-01","scope":"FOR THE ERECTION OF AN ATTACHED FOUR (4) STORY STRUCTURE OF TYPE VA CONSTRUCTION WITH A CELLAR AND A ROOF DECK WITH A ROOF ACCESS STRUCTURE. FOR FOUR (4) DWELLING UNITS AND AN ACCESSORY GARAGE WITH LAYOUT AS PER PLANS. ALL WORK AS PER PLANS. SEPARATE PERMITS REQUIRED FOR ANY MECHANICANICAL, ELECTRICAL, PLUMBING AND FIRE SUPPRESSION WORK. AMENDMENT (7/20/2021) Layout Revisions to Unit Plans at 3rd and 4th Floor as per plans."},{"number":"FP-2021-003311","date":"2021-12-06","work":"New Construction","type":"Fire Suppression","description":"Fire Suppression Permit","status":"Completed","completedDate":"2023-05-01","scope":"FOR THE INSTALLATION OF TWO (2) INCH FIRE SERVICE LINES WITH TWO (2) INCH BACKFLOW PREVENTERS AND AUTOMATIC FIRE SUPPRESSION SYSTEMS AS PER THE NFPA 13R SYSTEM. ALL WORK SHALL BE DONE IN ACCORDANCE WITH APPROVED PLANS/HYDRAULIC CALCULATIONS. SEPARATE PERMIT REQUIRED FOR ANY OTHER WORK."},{"number":"PP-2022-001671","date":"2022-03-16","work":"New Construction or Additions","type":"Plumbing","description":"Plumbing Permit","status":"Completed","completedDate":"2023-04-25","scope":"Install new 1 inch water distribution service 2 inch fire and new 6 inch sewer combo. 2 curb traps and FAI."},{"number":"MP-2022-001281","date":"2022-03-23","work":"New Construction","type":"Mechanical","description":"Mechanical / Fuel Gas Permit","status":"Completed","completedDate":"2023-02-27","scope":"FOR THE INSTALLATION OF AN HVAC MECHANICAL SYSTEM TO INCLUDE CONDENSING UNITS, UNIT HEATERS, AIR DEVISES, DIFFUSERS/REGISTERS/GRILLES, AND ASSOCIATED DUCTWORK. APPLIANCE TO BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S SPECIFICATIONS. ALL WORK TO BE DONE PER APPROVED PLANS. NO INTERIOR FIT-OUT THIS PERMIT. SEPARATE PERMITS WILL BE REQUIRED FOR ANY OTHER WORK. IF FIELD CONDITIONS VARY CONTACT THE DESIGN ENGINEER PRIOR TO THE START OF ANY WORK."},{"number":"EP-2022-003389","date":"2022-05-20","work":"New Construction","type":"Electrical","description":"Electrical Permit","status":"Completed","completedDate":"2022-12-22","scope":"INSTALL A 600 AMP SERVICE, (6) GANG METER BANK, (1) 150 AMP PANEL & FEEDER. (3) 125 AMP PANELS & FEEDERS, (1) 100 AMP PANEL & FEEDER. INSTALL WIRING THROUGHOUT THE COMMON AREAS AND FOUR DWELLING UNITS. INSTALL LIGHTS NORMAL AND EMERGENCY, SWITCHES, SENSORS AND RECEPTACLES. PROVIDE POWER FOR THE MECHANICAL AND HVAC EQUIPMENT. INSTALL A NEW FIRE ALARM SYSTEM THROUGHOUT. ALL WORK IN ACCORDANCE WITH THE 2017 NEC & 2016 NFPA-72."},{"number":"PP-2022-006054","date":"2022-08-08","work":"New Construction or Additions","type":"Plumbing","description":"Plumbing Permit","status":"Completed","completedDate":"2023-05-01","scope":"8 WC,8 TUBS,8 LAVATORIES,4 KS,4 LL,4 WH AS PER PPC 2018"}],"storyTag":"New construction","storyDelta":null,"timeline":[{"y":2017,"k":"appeal","w":"Appeal granted"},{"y":2017,"k":"permit","w":"Zoning"},{"y":2018,"k":"permit","w":"Zoning/use"},{"y":2018,"k":"land","p":100000},{"y":2020,"k":"land","p":169000},{"y":2021,"k":"permit","w":"New Construction"},{"y":2021,"k":"permit","w":"New Construction"},{"y":2022,"k":"permit","w":"New Construction or Additions"},{"y":2022,"k":"permit","w":"New Construction"},{"y":2022,"k":"permit","w":"New Construction"},{"y":2022,"k":"insp","w":"L&I: 6 failed, 1 passed"},{"y":2022,"k":"permit","w":"New Construction or Additions"}],"rented":true,"licenses":[{"number":"933767","type":"Rental","status":"Active","businessName":"diamond st holdings","legalName":"diamond st holdings ","address":"818 DIAMOND ST","revenueCode":"3202","rentalCategory":"Residential Dwellings","units":4,"issuedDate":"2023-09-21","latestIssueDate":"2025-09-15","expirationDate":"2026-09-20","inactiveDate":null}],"licenseActivity":[{"number":"933767","type":"Rental","businessName":"diamond st holdings","legalName":"diamond st holdings ","issuedDate":"2023-09-21","latestIssueDate":"2025-09-15","closureDate":null,"expirationDate":"2026-09-20","inactiveDate":null,"status":"Active","statusLabel":"Active","active":true}],"businessLicenseSourceDate":"2026-07-25","units":4,"signals":[{"kind":"permit-mismatch","level":"watch","title":"Assessment/permit mismatch","summary":"The assessment jumped 758% in 2024, but no matching permit appears in the property timeline.","evidence":["assessment moved from $123,000 to $1,055,000","no permit shown in 2023-2025"],"caveat":"Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it."}],"legalChecks":[{"id":"use-occupancy","level":"attention","title":"Zoning approval is not the occupancy file","finding":"Appeal #29279: OPEN · Granted; related permit 704835. Use permit #767267: COMPLETED.","why":"Philadelphia says a zoning approval or Property Sales Certification can identify a use without proving that it was established under the Building Code. A change of use, unit count, exits, or fire rating can require a Building Permit and Certificate of Occupancy.","action":"Verify the lawful use, unit count, associated construction permits, and Certificate of Occupancy with L&I.","url":"https://www.phila.gov/services/permits-violations-licenses/get-a-certificate/get-a-certificate-of-occupancy/"},{"id":"rental-license","level":"verify","title":"A rental license does not transfer with the deed","finding":"1 active Rental License record matched.","why":"If dwelling space is rented, the buyer must obtain a new annual Rental License; the seller’s license is not transferable. New applications require proof of ownership and legal occupancy, tax compliance, no open L&I violations, and lead compliance where applicable.","action":"Plan the buyer’s replacement license before settlement.","url":"https://www.phila.gov/services/permits-violations-licenses/rent-or-sell-property/get-a-rental-license/"},{"id":"managing-agent","level":"verify","title":"Tax mail goes outside Philadelphia; owner residence still needs verification","finding":"OPA mails the property tax record outside Philadelphia (P O BOX 48, LAKEWOOD NJ, 08701).","why":"A tax mailing destination does not establish where the owner lives. If a rental owner lives outside Philadelphia, the City requires a managing agent with a Philadelphia mailing address; the owner remains legally responsible.","action":"Verify the buyer’s residence and, if the buyer will live outside Philadelphia, identify the Philadelphia managing agent on the new license application.","url":"https://www.phila.gov/services/permits-violations-licenses/rent-or-sell-property/get-a-rental-license/"},{"id":"investigations","level":"verify","title":"Failed inspections are dated events—not the current condition","finding":"6 failed, 2 passed, and 1 CLOSED investigation outcome are in the fetched history; the latest dated visit was PASSED on Apr 26, 2022.","why":"A PASSED or FAILED value applies to that inspection visit. CLOSED is a separate source status; none of the three alone proves the parent permit or violation case closed—or describes today’s condition.","action":"Open the parent case/permit for each material failure and confirm its later disposition.","url":"https://www.phila.gov/departments/department-of-licenses-and-inspections/inspections-by-permit-type/"},{"id":"building-certifications","level":"verify","title":"A fire-system permit exists, but no annual certification matched","finding":"4 fire/suppression-related permits matched; the fetched BIN certification feed returned no row.","why":"Installed systems in mixed-use and larger buildings generally require periodic certification, but applicability and limited-area exceptions vary. A missing BIN/address join is not proof of a compliance failure.","action":"Confirm what system was installed and whether a current annual certificate is required and filed.","url":"https://www.phila.gov/departments/department-of-licenses-and-inspections/inspections/maintenance-certifications/fire-protection-certifications/"},{"id":"abatement","level":"verify","title":"A reduced taxable assessment is not a verified abatement","finding":"OPA’s numeric assessment fields show a reduced taxable assessment; BlockReport has no official program determination for this parcel.","why":"The numeric treatment can reflect an improvement abatement or another exemption. It does not identify the ordinance, approval, start or end date, or continuation requirements after a transfer. Once OPA verifies a specific active abatement, many common programs attach the benefit to the property for the remaining term rather than ending automatically at sale, but some require a new-owner filing and continued qualifying use or tax compliance.","action":"Obtain the OPA exemption/abatement determination and history, then underwrite the buyer’s bill from the verified program terms.","url":"https://www.phila.gov/services/payments-assistance-taxes/taxes/property-and-real-estate-taxes/get-real-estate-tax-relief/get-a-property-tax-abatement/"},{"id":"commercial-trash","level":"verify","title":"A separate Commercial Trash account may apply","finding":"OPA classifies the parcel as multi-family. BlockReport does not receive a current Commercial Trash account balance.","why":"Philadelphia charges qualifying small commercial, mixed-use, and multi-unit properties that use City collection; exemptions and private collection can change applicability. A use category alone does not prove a fee is due.","action":"Check the Commercial Trash account inside the date-effective Property Payoff.","url":"https://www.phila.gov/2026-06-09-pay-your-trash-fee-bill-by-june-30/"},{"id":"violations","level":"clear","title":"No open violation; closed history remains relevant","finding":"The fetched record shows 0 open and 8 historical violations across 4 cases.","why":"A closed case is materially better than an open one, but it does not by itself prove that every altered use, unit, or concealed condition matches today’s approvals.","action":"Use the closed cases to target the inspection and occupancy-file review.","url":"https://www.phila.gov/departments/department-of-licenses-and-inspections/inspections/violation-and-order-types/"}],"closingChecks":[{"title":"Property Sales Certification","body":"The seller must obtain Philadelphia’s certificate showing the base zoning, last use in the zoning record, and open violations. The City warns that it does not prove Building Code occupancy or show zoning overlays.","action":"Obtain the fresh certificate and compare it with the CO, permits, and Atlas overlays.","url":"https://www.phila.gov/services/permits-violations-licenses/get-a-certificate/get-a-property-sales-certification/"},{"title":"Date-effective City Property Payoff","body":"The Tax Center Property Payoff covers Real Estate Tax, Commercial Trash, and L&I abatement-work invoices. Philadelphia says it does not include business-tax debts or liens, water and sewer charges, or fines for code violations.","action":"Request the City statement effective through settlement; read every period and invoice.","url":"https://www.phila.gov/guides/philadelphia-tax-center/what-to-do/"},{"title":"Professional title and water-lien searches","body":"OPA ownership, deed summaries, and a zero tax balance are not clear title. Mortgages, judgments, municipal claims, water liens, easements, heirs, and other encumbrances require separate searches.","action":"Use a Pennsylvania lawyer/title company and obtain owner’s title insurance; order the separate water search/payoff.","url":"https://www.phila.gov/2026-04-07-why-title-insurance-is-your-best-friend-when-buying-a-home-in-philadelphia/","secondaryUrl":"https://www.phila.gov/services/water-gas-utilities/pay-or-dispute-a-water-bill/resolve-water-liens-judgments/"},{"title":"Seller-specific tax relief is not the buyer’s bill","body":"LOOP and low-income or senior Real Estate Tax freezes depend on the qualifying owner and continued program eligibility; a buyer cannot assume the seller’s capped or frozen bill continues. A separately verified property abatement often remains with the property for its remaining term, but program-specific new-owner filing, use, and tax-compliance conditions still must be confirmed—not inferred from the reduced assessment alone.","action":"Have Revenue or OPA identify every current benefit, model the buyer’s bill without seller-specific relief, and confirm any verified abatement in writing.","url":"https://www.phila.gov/services/payments-assistance-taxes/payment-plans-and-assistance-programs/income-based-programs-for-residents/apply-for-the-longtime-owner-occupants-program-loop/","secondaryUrl":"https://www.phila.gov/services/payments-assistance-taxes/taxes/property-and-real-estate-taxes/get-real-estate-tax-relief/tax-freeze/"},{"title":"Seller disclosure and independent inspections","body":"For a covered Pennsylvania residential transfer, obtain the statutory seller disclosure. It reports the seller’s knowledge; it is not a warranty, title search, code review, or substitute for inspections.","action":"Have the agreement and disclosure reviewed for this transaction’s coverage and exceptions.","url":"https://www.pa.gov/agencies/dos/department-and-offices/bpoa/boards-commissions/real-estate-commission"}]}