409 CATHARINE ST
For the partial demolition and erection of an addition to the rear of an existing attached structure with roof deck accessed from 3rd floor. Size and location as shown in plans.
Philly doesn't publish eviction filings, so this uses demolition permits as the closest proxy for housing stock loss in the immediate area. 1 permit found.
Block-level acquisition pattern. 12 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.