Housing & Blight
Residents file blight and property complaints via 311; the Department of Licenses & Inspections issues the actual violation notices. Those two systems are separate, and the gap between them is uneven across the city. This track explores that enforcement gap — where complaints translate into action, where they disappear, and what the joint map of 311 and L&I records reveals about neighborhood-level accountability.
Stories
The vacant block effect
Philadelphia has roughly 8,000 vacant buildings on the city's books and 12,000 parcels stabilized by the PHS LandCare program. They don't sit in the same places — and the 311 dumping and graffiti calls reveal whose blocks the gap leaves behind.
The Anatomy of Neglect
Illegal dumping, property violations, and blight complaints don't spread evenly across Philadelphia. They compound, almost exclusively, in the exact same neighborhoods. A scroll-driven look at how civic failure stacks.
You called 311. Then what?
Property and blight complaints land at 311; violation notices come from L&I. Where do those two records line up across the city, and where do they diverge? A zip-by-zip co-occurrence map.