882 N 21ST ST
FOR THE ERECTION OF A THIRD FLOOR ADDITION ABOVE AN EXISTING ATTACHED STRUCTURE USED AS A SINGLE-FAMILY DWELLING; SIZE AND LOCATION AS PER BUILDING APPLICATION/PLAN.
Philly doesn't publish eviction filings, so this uses demolition permits as the closest proxy for housing stock loss in the immediate area. 4 permits found.
Block-level acquisition pattern. 10 transactions in the immediate area.
Pulled from the city's Carto SQL API. Capped at 5000 most-recent permits per refresh. Geocoding is by the city L&I system and is decent but not perfect; ~1% of permits fall outside Philadelphia bounds and get dropped. Status field is normalized from L&I's free-text values with a best-effort mapping. The Zoning Board of Adjustment decisions dataset (which would have been a better fit) appears to have been retired from OpenDataPhilly.