{"asOf":"2026-07-08T00:44:26.726Z","block":"4500-4599 SHEFFIELD AVE","blockUrl":"https://blockreport.homes/block/4500-4599-sheffield-ave","address":"4521 SHEFFIELD AVE","parcelNumber":"651145100","source":"https://property.phila.gov/?p=651145100","ownerType":"absentee","owner":"YAN KONGZHENG","marketValue":321300,"yearBuilt":1955,"lastSale":{"price":230000,"date":"2023-08-25T04:00:00Z"},"openViolations":0,"taxOwed":0,"lat":40.034677828107526,"lng":-75.0299890625427}