{"asOf":"2026-07-09T16:36:55.236Z","block":"500-599 S 48TH ST","blockUrl":"https://blockreport.homes/block/500-599-s-48th-st","address":"508 S 48TH ST","parcelNumber":"461215500","source":"https://property.phila.gov/?p=461215500","ownerType":"owner-occupied","kind":"house","isHouse":true,"residential":true,"taxExempt":false,"institutional":false,"buildingClass":"SEMI/DET 3 STY MASONRY","useLabel":"House","owner":"DOROTHY WELCH BERLIND","marketValue":532600,"livableArea":2400,"yearBuilt":1925,"lastSale":{"price":9500,"date":"1976-10-01T04:00:00Z"},"openViolations":0,"taxOwed":0,"lat":39.95077851386889,"lng":-75.21904724757283,"geom":{"type":"Polygon","coordinates":[[[-75.218865824,39.950783029],[-75.218877337,39.950731459],[-75.219228742,39.950774272],[-75.219218397,39.950825401],[-75.218865824,39.950783029]]]},"zip":"19143","beds":null,"baths":null,"stories":3,"lotArea":1950,"zoning":"RSA3","grade":"B","basement":null,"heater":null,"centralAir":null,"extCond":"4","intCond":"4","garage":null,"homestead":false,"mail":"508 S 48TH ST, PHILADELPHIA PA, 19143","mailOut":false,"appeals":[],"taxYears":[],"taxNet":0,"taxLien":false,"timesSold":0,"abated":true,"valueSeries":[{"y":2016,"v":312000,"taxable":256800},{"y":2017,"v":312000,"taxable":256800},{"y":2018,"v":312000,"taxable":256800},{"y":2019,"v":361800,"taxable":256800},{"y":2020,"v":375300,"taxable":256800},{"y":2021,"v":375300,"taxable":256800},{"y":2022,"v":375300,"taxable":256800},{"y":2023,"v":569000,"taxable":256800},{"y":2024,"v":569000,"taxable":256800},{"y":2025,"v":604100,"taxable":256800},{"y":2026,"v":604100,"taxable":256800},{"y":2027,"v":532600,"taxable":256800}],"taxNow":3595,"familyHeld":false,"storyTag":"New construction","storyDelta":null,"timeline":[{"y":2010,"k":"permit","w":"Addition"},{"y":2010,"k":"permit","w":"Zoning"},{"y":2016,"k":"permit","w":"Electrical"},{"y":2026,"k":"permit","w":"Addition and/or Alteration"}],"rented":false,"signals":[{"kind":"permit-mismatch","level":"watch","title":"Assessment/permit mismatch","summary":"The assessment jumped 52% in 2023, but no matching permit appears in the property timeline.","evidence":["assessment moved from $375,300 to $569,000","no permit shown in 2022-2024"],"caveat":"Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it."}]}