{"asOf":"2026-07-28T23:09:10.597Z","block":"4900-4999 JEFFERSON ST","blockUrl":"https://philadelphia.blockreport.homes/block/4900-4999-jefferson-st","address":"4900-40 JEFFERSON ST","parcelNumber":"884897404","source":"https://property.phila.gov/?p=884897404","ownerType":"investor","kind":"industrial","isHouse":false,"home":false,"commercial":false,"residential":false,"taxExempt":false,"institutional":false,"buildingCode":"SJ","buildingCodeNew":"401","buildingClass":"VACANT LAND INDUST ACRE+","buildingClassNew":"MANUFACTURING/PROCESSING","useLabel":"Industrial","owner":"ALTA INDUSTRIAL PROP INC","coOwner":null,"marketValue":7500000,"landAssessment":1500000,"improvementAssessment":6000000,"livableArea":6683,"yearBuilt":2021,"lastSale":{"price":1107826,"date":"2017-05-24T04:00:00Z"},"openViolations":0,"violations":[],"violationCases":[],"investigations":[],"taxOwed":0,"taxSnapshot":{"available":true,"asOf":"2022-06","matched":false},"taxDelinquencySnapshotAsOf":"2022-06","taxDelinquencySnapshotAvailable":true,"lat":39.97596515612521,"lng":-75.2192183250983,"geom":{"type":"Polygon","coordinates":[[[-75.217591255,39.97594274],[-75.21813786,39.97496618],[-75.220868158,39.975999044],[-75.220271476,39.976958101],[-75.217591255,39.97594274]]]},"liDistrict":"CENTRAL WEST","certifications":[{"number":"BC-2025-030046","type":"Fire Alarm Certification","inspectionDate":"2025-10-10","result":"Certified","expirationDate":"2026-10-10","buildingId":"3000708"}],"cityRecordAvailability":{"violations":true,"investigations":true,"appeals":true,"certifications":true,"permits":true,"licenses":true},"zip":"19131","beds":null,"baths":null,"stories":2,"lotArea":326686,"zoning":"I3","grade":"A","basement":null,"heater":null,"centralAir":null,"extCond":"3","intCond":"3","garage":null,"homestead":false,"mail":"355 NEWBOLD RD, FAIRLESS HILLS PA, 19030","mailOut":true,"appeals":[],"taxYears":[],"taxNet":0,"taxLien":false,"taxLedgerThrough":2016,"taxLedgerAvailable":true,"timesSold":1,"abated":false,"assessmentExemption":false,"exemptionBasisVerified":false,"valueSeries":[{"y":2016,"v":741600,"taxable":0,"land":741600,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":741600,"exemptImprovement":0},{"y":2017,"v":741600,"taxable":0,"land":741600,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":741600,"exemptImprovement":0},{"y":2019,"v":816700,"taxable":0,"land":816700,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":816700,"exemptImprovement":0},{"y":2020,"v":816700,"taxable":0,"land":816700,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":816700,"exemptImprovement":0},{"y":2021,"v":816700,"taxable":0,"land":816700,"improvement":0,"taxableLand":0,"taxableImprovement":0,"exemptLand":816700,"exemptImprovement":0},{"y":2022,"v":6438600,"taxable":0,"land":1038600,"improvement":5400000,"taxableLand":0,"taxableImprovement":0,"exemptLand":1038600,"exemptImprovement":5400000},{"y":2023,"v":6438600,"taxable":0,"land":1931580,"improvement":4507020,"taxableLand":0,"taxableImprovement":0,"exemptLand":1931580,"exemptImprovement":4507020},{"y":2024,"v":6438600,"taxable":0,"land":1931580,"improvement":4507020,"taxableLand":0,"taxableImprovement":0,"exemptLand":1931580,"exemptImprovement":4507020},{"y":2025,"v":6442400,"taxable":6442400,"land":5153920,"improvement":1288480,"taxableLand":5153920,"taxableImprovement":1288480,"exemptLand":0,"exemptImprovement":0},{"y":2026,"v":6442400,"taxable":6442400,"land":5153920,"improvement":1288480,"taxableLand":5153920,"taxableImprovement":1288480,"exemptLand":0,"exemptImprovement":0},{"y":2027,"v":7500000,"taxable":7500000,"land":1500000,"improvement":6000000,"taxableLand":1500000,"taxableImprovement":6000000,"exemptLand":0,"exemptImprovement":0}],"taxNow":90181,"familyHeld":false,"lastTransferNominal":true,"permits":[{"number":"335887","date":"2011-07-14","work":"New construction","type":"BP_NEWCNST","description":"NEW CONSTRUCTION PERMIT","status":"COMPLETED","completedDate":"2012-08-03","scope":"CONSTRUCT NEW BUS SHELTER AND 1 STORY BUILDING FOR TOILETS. ASSOCIATED CIVIL AND SITE WORK FOR BUS STOP/TERMINAL AREA AS PER PLANS. PLUS SIGNS"},{"number":"789895","date":"2017-06-28","work":"Zoning","type":"ZP_ZONING","description":"ZONING PERMIT","status":"COMPLETED","completedDate":"2017-06-28","scope":"RELOCATION AND CONSOLIDATION OF LOT LINES TO CREATE ONE 1 LOT FROM TWO LOTS FOR THE ERECTION OF A CONCRETE MANUFACTURING PROCESSING FACILITY WITH ACCESSORY PARKING AND LOADING AND STORAGE AS ALLOWED IN UNDERLYING I-3 HEAVY INDUSTRIAL ZONING DISTRICT WITH OTHER SITE IMPROVEMENTS AS FULLT SET FORTH IN ATTACHED PLANS."},{"number":"800550","date":"2017-07-28","work":"Zoning/use","type":"ZP_ZON/USE","description":"ZONING/USE PERMIT","status":"COMPLETED","completedDate":"2017-07-28","scope":"FOR THE ERECTION OF ONE(1) DETACHED STRUCTURE FOR AN INTENSIVE INDUSTRIAL WITH FOURTEEN(14) SURFACE ACCESSORY PARKING SPACES INCLUDING WITH ONE(1) H/C SPACE, ONE(1) VAN ACCESSIBLE SPACE, ONE(1) LOADING SPACE AND TWO(2) BICYCLE SPACES. SIZE AND LOCATION AS SHOWN IN THE APPLICATION."},{"number":"886859","date":"2018-07-20","work":"Zoning/use","type":"ZP_ZON/USE","description":"ZONING/USE PERMIT","status":"COMPLETED","completedDate":"2018-07-20","scope":"FOR THE ERECTION OF ONE(1) DETACHED STRUCTURE FOR AN INTENSIVE INDUSTRIAL WITH FOURTEEN(14) SURFACE ACCESSORY PARKING SPACES INCLUDING WITH ONE(1) H/C SPACE, ONE(1)VAN ACCESSIBLE SPACE, ONE(1) LOADING SPACE AND TWO(2) BICYCLE SPACES.(SIZE AND LOCATION AS SHOWN IN THE APPLICATION."},{"number":"914915","date":"2018-12-10","work":"New Construction","type":"Mechanical","description":"Mechanical / Fuel Gas Permit","status":"Completed","completedDate":"2021-09-29","scope":"FOR INTALLATION OF A NEW HVAC SYSTEM AS PER PLANS."},{"number":"902797","date":"2018-12-10","work":"New Construction","type":"Building","description":"Commercial Building Permit","status":"Completed","completedDate":"2023-07-10","scope":"ERECTION OF NEW CONCRETE PRODUCTION FACILITY AND CONTROL BUILDING. 1 STORY STEEL FRAMED AND METAL PANEL CLAD PRODUCTION PLANT WITH AN ATTACHED 3 STORY STEEL FRAMED AND METAL PANEL CLAD CONTROL BUILDING THAT INCLUDES OFFICE AND SERVICE SPACES AS PER PLANS. SEPARATE PERMITS REQUIRED FOR ALL MECHANICAL, ELECTRICAL AND PLUMBING WORK."},{"number":"947680","date":"2019-02-26","work":"Zoning/use","type":"ZP_ZON/USE","description":"ZONING/USE PERMIT","status":"COMPLETED","completedDate":"2019-02-26","scope":"RELOCATION OF PREVIOUSLY APPROVED SOUTH AND WEST RETAINING WALLS WITH RELOCATIONOF ACCESSORY PARKING (NO CHANGE TO APPROVED 9 PARKING SPACES) WITH OTHER SITE IMPROVEMENTS AS FULLY SET FORTH IN ATTAHCED PLANS OTHERWISE, APPLICAITON FILED WITHOUT PREJUDICE TO PREVIOUSLY ISSUED ZONING/USE PERMIT 886859."},{"number":"1002558","date":"2019-08-15","work":"New Construction","type":"Electrical","description":"Electrical Permit","status":"Completed","completedDate":"2022-02-01","scope":"INSTALL 200 AMP SINGLE PHASE TEMP SERVICE FOR NEW CONSTRUCTION AS PER 2017 NEC"},{"number":"1029525","date":"2019-12-16","work":"New Construction or Additions","type":"Plumbing","description":"Plumbing Permit","status":"Completed","completedDate":"2021-09-29","scope":"1 MR, 1 FD, 1 UR, 3 WC, 3 LAV PER 2004 PHILA PLUMBING CODE;NEW CONCRETE PRODUCTION FACILITY AND CONTROL BUILDING"},{"number":"1024126","date":"2020-03-12","work":"New Construction","type":"Electrical","description":"Electrical Permit","status":"Completed","completedDate":"2020-10-26","scope":"15KV PRIMARY SERVICE, SECONDARY SERVICE ALL DISTRIBUTION EQUIPMENT, SITE LIGHTING, TEMP POWER AND LIGHTING, LIGHTING ON ALL FLOORS, LIGHTING CONTROLS, BRANCH POWER, GROUNDING. TELE/DATA SLEEVES AND CABLE, FIRE ALARM AND POWER TO JOB TRAILERS. ALL W FURNISH AND INSTALL A COMPLETE FORE ALARM SYSTEM THROUGHOUT.AS PER THE 2007 NFPA-72, 2008 NEC."}],"storyTag":"New construction","storyDelta":null,"timeline":[{"y":2011,"k":"permit","w":"New construction"},{"y":2017,"k":"land","p":1107826},{"y":2017,"k":"permit","w":"Zoning"},{"y":2017,"k":"permit","w":"Zoning/use"},{"y":2018,"k":"permit","w":"Zoning/use"},{"y":2018,"k":"permit","w":"New Construction"},{"y":2018,"k":"permit","w":"New Construction"},{"y":2019,"k":"permit","w":"Zoning/use"},{"y":2019,"k":"permit","w":"New Construction"},{"y":2019,"k":"permit","w":"New Construction or Additions"},{"y":2020,"k":"permit","w":"New Construction"}],"rented":false,"licenses":[],"licenseActivity":[],"businessLicenseSourceDate":"2026-07-27","signals":[{"kind":"permit-mismatch","level":"watch","title":"Assessment/permit mismatch","summary":"The assessment jumped 688% in 2022, but no matching permit appears in the property timeline.","evidence":["assessment moved from $816,700 to $6,438,600","no permit shown in 2021-2023"],"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":"Use permit #800550: 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":"deed-chain","level":"verify","title":"The latest nominal transfer is not a market sale—or a title opinion","finding":"The latest deed in the assembled record moved for nominal consideration.","why":"A $1 or nominal deed can be a valid family, estate, or entity transfer. It does not establish a sale price, clear title, or by itself prove a tangled title.","action":"Read the recorded deed and have the title search confirm every grantor, grantee, estate/probate step, lien, and authority to sell.","url":"https://www.phila.gov/services/property-lots-housing/get-a-copy-of-a-deed-or-other-recorded-document/"},{"id":"building-certifications","level":"clear","title":"Filed system certifications are current in this dataset","finding":"Fire Alarm Certification: Certified through Oct 10, 2026","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/"}]}