{"asOf":"2026-07-23T19:37:43.474Z","block":"6600-6699 KEYSTONE ST","blockUrl":"https://philadelphia.blockreport.homes/block/6600-6699-keystone-st","address":"6601 KEYSTONE ST","parcelNumber":"411472710","source":"https://property.phila.gov/?p=411472710","ownerType":"vacant","kind":"vacant land","isHouse":false,"home":false,"commercial":false,"residential":false,"taxExempt":true,"institutional":false,"buildingCode":"SS","buildingCodeNew":null,"buildingClass":"VACANT LAND RESIDE ACRE+","buildingClassNew":null,"useLabel":"Vacant lot","owner":"CITY OF PHILA","coOwner":null,"marketValue":1038900,"landAssessment":1038900,"improvementAssessment":0,"livableArea":null,"yearBuilt":null,"lastSale":{"price":1,"date":"2017-03-20T04:00:00Z"},"openViolations":0,"violations":[],"violationCases":[],"investigations":[],"taxOwed":0,"taxSnapshot":{"available":true,"asOf":"2022-06","matched":false},"taxDelinquencySnapshotAsOf":"2022-06","taxDelinquencySnapshotAvailable":true,"lat":40.020765950161795,"lng":-75.04482248796945,"geom":{"type":"Polygon","coordinates":[[[-75.04595243,40.020670595],[-75.044294459,40.021531223],[-75.043690888,40.020846017],[-75.045371082,40.020006782],[-75.04595243,40.020670595]]]},"liDistrict":"EAST","certifications":[{"number":"BC-2022-013904","type":"Emergency and Standby Power Systems Certification","inspectionDate":"2022-09-19","result":"Certified","expirationDate":"2023-09-19","buildingId":"1308462"},{"number":"BC-2024-026709","type":"Emergency and Standby Power Systems Certification","inspectionDate":"2024-09-26","result":"Certified","expirationDate":"2025-09-26","buildingId":"1308462"},{"number":"BC-2026-002326","type":"Emergency and Standby Power Systems Certification","inspectionDate":"2026-01-22","result":"Certified","expirationDate":"2027-01-22","buildingId":"1308462"}],"cityRecordAvailability":{"violations":true,"investigations":true,"appeals":true,"certifications":true,"permits":true,"licenses":true},"zip":"19135","beds":null,"baths":null,"stories":null,"lotArea":146458,"zoning":"SPPOA","grade":null,"basement":null,"heater":null,"centralAir":null,"extCond":null,"intCond":null,"garage":null,"homestead":false,"mail":"1401 JOHN F KENNEDY BLVD, PHILADELPHIA PA, 19107","mailOut":false,"appeals":[{"type":"Zoning board appeal","grounds":"PERMIT FOR THE ERECTION OF THREE (3) STORY DETACHED STRUCTURE MAXIMUM 31 FT HIGH FOR USE AS A FIRE STATION WITH ACCESSORY TRAINING ROOM/COMMUNITY ROOM ON 2ND FLOOR AND ACCESSORY STORAGE/MECHANICAL ROOM ON THE 3RD FLOOR AND PROPOSED FIFTEEN ","status":"CLOSED","outcome":"Granted","date":"2009-12-15","number":"10257","relatedPermit":"241525"}],"taxYears":[],"taxNet":0,"taxLien":false,"taxLedgerThrough":2016,"taxLedgerAvailable":true,"timesSold":0,"abated":false,"assessmentExemption":false,"exemptionBasisVerified":false,"valueSeries":[{"y":2016,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2017,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2018,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2019,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2020,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2021,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2022,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2023,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2024,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2025,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2026,"v":146400,"taxable":0,"land":146400,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":146400,"exemptImprovement":0},{"y":2027,"v":1038900,"taxable":0,"land":1038900,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":1038900,"exemptImprovement":0}],"taxNow":0,"familyHeld":false,"lastTransferNominal":false,"permits":[{"number":"241525","date":"2010-05-11","work":"Zoning/use","type":"ZP_ZON/USE","description":"ZONING/USE PERMIT","status":"COMPLETED","completedDate":"2010-05-11","scope":"BUILDING A NEW FIRE HOUSE FOR THE PFD"},{"number":"270154","date":"2011-05-11","work":"New construction","type":"BP_NEWCNST","description":"NEW CONSTRUCTION PERMIT","status":"COMPLETED","completedDate":"2012-12-19","scope":"CONSTRUCTION OF A FIRE STATION WITH SITE IMPROVEMENTS"},{"number":"344142","date":"2011-07-14","work":"Plumbing","type":"PP_PLUMBNG","description":"PLUMBING PERMIT","status":"COMPLETED","completedDate":"2012-12-06","scope":"NEW SANITARY STORM AND WATER PIPING FOR NEW FIRE HOUSE"},{"number":"352636","date":"2011-08-12","work":"Mechanical","type":"BP_MECH","description":"MECHANICAL PERMIT","status":"COMPLETED","completedDate":"2013-06-14","scope":"INSTALLATION OF NEW HVAC SYSTEM AND MECHANICALS."},{"number":"350690","date":"2011-08-19","work":"Electrical","type":"EP_ELECTRL","description":"ELECTRICAL PERMIT","status":"COMPLETED","completedDate":"2013-01-08","scope":"PROVIDED POWER, LIGHTING, SECURITY, CCTV SOUND PAGING, DATA OUTLETS, PHONE LINES, GROUNDING, SITE LIGHTING, NEW SEVICE, PANEL BOARDS, AND FEEDERS AS PER 2008 NEC (EAST DISTRICT) INSTALL FIRE ALARM SYSTEM AS PER NFPA72"},{"number":"373870","date":"2011-12-27","work":"Suppression","type":"BP_FIRESUP","description":"SUPPRESSION PERMIT","status":"COMPLETED","completedDate":"2012-12-14","scope":"INSTALL NEW BACKFLOW PREVENTER IN METER PIT AND INSTALL NEW 4\" UNDERGROUND TO SUPPLY SPRINKLER SYSTEM FOR NEW FIRE HOUSE. SEPARATE PERMIT IS REQUIRED FOR SPRINKLER SYSTEM."},{"number":"392597","date":"2012-04-23","work":"Suppression","type":"BP_FIRESUP","description":"SUPPRESSION PERMIT","status":"COMPLETED","completedDate":"2012-12-13","scope":"INSTALLATION OF SPRINKLER SYSTEM IN ACCORDANCE WITH NFPA 13 THROUGHOUT A TWO (2) STORY STRUCTURE WITH ATTIC (FIRE HOUSE, WET SYSTEM IN 1ST & 2ND FLOOR, DRY SYSTEM IN ATTIC, DRY HEADS AT PORCH); SEE PERMIT # 373870 FOR BACKFLOW PREVENTOR APPROVAL IN METER PIT."},{"number":"963509","date":"2019-04-03","work":"Plumbing","type":"PP_PLUMBNG","description":"PLUMBING PERMIT","status":"EXPIRED","completedDate":null,"scope":"REPLACE BACKFLOW PREVENTOR AS PER 2004 PPC"},{"number":"CP-2025-000806","date":"2025-03-21","work":"Addition and/or Alteration","type":"Building","description":"Commercial Building Permit","status":"Completed","completedDate":"2025-08-12","scope":"FOR REPAIRS/RESTORATION AND LEVEL I ALTERATIONS TO EXISTING DETACHED BUILDING PER APPROVED PLANS. SEPARATE PERMITS REQUIRED FOR MECHANICAL, ELECTRICAL, AND PLUMBING WORK."},{"number":"FP-2025-000780","date":"2025-04-15","work":"Addition and/or Alterations","type":"Fire Suppression","description":"Fire Suppression Permit","status":"Completed","completedDate":"2025-08-11","scope":"EZ PERMIT SPRINKLER RELOCATION (NFPA 13)- For the relocation of sprinkler heads as per attached standards. Deviations from these standards require submission of construction and site plans. Relocate 1 sprinkler head"}],"storyTag":"New construction","storyDelta":null,"timeline":[{"y":2009,"k":"appeal","w":"Appeal granted"},{"y":2010,"k":"permit","w":"Zoning/use"},{"y":2011,"k":"permit","w":"New construction"},{"y":2011,"k":"permit","w":"Plumbing"},{"y":2011,"k":"permit","w":"Mechanical"},{"y":2011,"k":"permit","w":"Electrical"},{"y":2011,"k":"permit","w":"Suppression"},{"y":2012,"k":"permit","w":"Suppression"},{"y":2019,"k":"permit","w":"Plumbing"},{"y":2025,"k":"permit","w":"Addition and/or Alteration"},{"y":2025,"k":"permit","w":"Addition and/or Alterations"}],"rented":false,"licenses":[],"licenseActivity":[],"businessLicenseSourceDate":"2026-07-23","signals":[{"kind":"permit-mismatch","level":"watch","title":"Assessment/permit mismatch","summary":"The assessment jumped 610% in 2027, but no matching permit appears in the property timeline.","evidence":["assessment moved from $146,400 to $1,038,900","no permit shown in 2026-2028"],"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 #10257: CLOSED · Granted; related permit 241525. Use permit #241525: 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":"permit-status","level":"attention","title":"A permit row needs file-level verification","finding":"1 permit not marked completed: 963509 (EXPIRED).","why":"Issued work is not the same as approved final work. L&I uses final inspections and required certifications to close construction permits; expired, withdrawn, and completed are different City statuses.","action":"Open the permit file and confirm final inspections, holds, and any resulting occupancy certificate.","url":"https://www.phila.gov/departments/department-of-licenses-and-inspections/inspections-by-permit-type/"},{"id":"full-tax-exemption","level":"verify","title":"OPA shows a full exemption; its legal basis is unverified","finding":"OPA currently marks the land and building assessment fully tax-exempt; BlockReport does not receive the exemption determination or basis.","why":"Full OPA exemptions can have different legal bases, including government, religious, charitable/institutional, veteran, or other treatment. The current owner/use record is not a buyer’s tax forecast.","action":"Confirm the exact exemption basis, buyer eligibility, and next tax-year treatment directly with OPA.","url":"https://www.phila.gov/departments/office-of-property-assessment/tax-exemptions-and-abatements/"},{"id":"building-certifications","level":"clear","title":"Filed system certifications are current in this dataset","finding":"Emergency and Standby Power Systems Certification: Certified through Jan 22, 2027","why":"Fire-protection certifications apply to the named system and inspection period only; they are not a whole-building safety certificate. Philadelphia generally requires annual sprinkler, standpipe, fire-alarm, special-hazard, and emergency-power inspections where those systems exist.","action":"Confirm the certificate covers every applicable system and remains accepted by L&I.","url":"https://www.phila.gov/departments/department-of-licenses-and-inspections/inspections/maintenance-certifications/fire-protection-certifications/"}],"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/"}]}