{"asOf":"2026-07-08T00:08:40.768Z","block":"400-499 MERCY ST","blockUrl":"https://blockreport.homes/block/400-499-mercy-st","address":"428 MERCY ST","parcelNumber":"392059900","source":"https://property.phila.gov/?p=392059900","ownerType":"owner-occupied","owner":"YAHN CALVIN J","marketValue":340400,"yearBuilt":2017,"lastSale":{"price":490000,"date":"2024-10-15T04:00:00Z"},"openViolations":0,"taxOwed":0,"lat":39.922726941786514,"lng":-75.15421836726048}