{"asOf":"2026-07-09T11:58:40.612Z","block":"1800-1899 MONTROSE ST","blockUrl":"https://blockreport.homes/block/1800-1899-montrose-st","address":"1801 MONTROSE ST","parcelNumber":"301203100","source":"https://property.phila.gov/?p=301203100","ownerType":"absentee","owner":"HELBER ANDREW ROBERT","marketValue":912400,"livableArea":1869,"yearBuilt":2020,"lastSale":{"price":750000,"date":"2020-12-04T05:00:00Z"},"openViolations":0,"taxOwed":0,"lat":39.940518820160996,"lng":-75.17320220743066,"geom":{"type":"Polygon","coordinates":[[[-75.17324383,39.940448885],[-75.173213407,39.94059526],[-75.173160585,39.940588755],[-75.173191008,39.94044238],[-75.17324383,39.940448885]]]},"zip":"19146","beds":3,"baths":2,"stories":3,"lotArea":810,"zoning":"RSA5","grade":"C","basement":"A","heater":null,"centralAir":true,"extCond":"1","intCond":"1","garage":null,"homestead":false,"appeals":[],"taxYears":[],"taxNet":0,"taxLien":false,"timesSold":5,"abated":false,"valueSeries":[{"y":2016,"v":311900,"taxable":99900},{"y":2017,"v":311900,"taxable":99900},{"y":2018,"v":311900,"taxable":99900},{"y":2019,"v":352800,"taxable":352800},{"y":2020,"v":344800,"taxable":344800},{"y":2021,"v":344800,"taxable":344800},{"y":2022,"v":344800,"taxable":344800},{"y":2023,"v":734500,"taxable":734500},{"y":2024,"v":734500,"taxable":734500},{"y":2025,"v":759800,"taxable":759800},{"y":2026,"v":759800,"taxable":759800},{"y":2027,"v":912400,"taxable":912400}],"taxNow":12772,"familyHeld":true,"storyTag":"Land","storyDelta":null,"timeline":[{"y":2002,"k":"land","p":63500},{"y":2003,"k":"land","p":159900},{"y":2005,"k":"land","p":510000},{"y":2018,"k":"land","p":330000},{"y":2020,"k":"sale","p":750000}],"rented":false,"signals":[{"kind":"permit-mismatch","level":"watch","title":"Assessment/permit mismatch","summary":"The assessment jumped 113% in 2023, but no matching permit appears in the property timeline.","evidence":["assessment moved from $344,800 to $734,500","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."}]}