596 Acres: Signs on Fences

Paula Z. Segal obtained a New York City spreadsheet listing all publicly owned vacant land in Brooklyn — 596 acres of it — and did two things with it. The expected one: put it online as a map (which grew into Living Lots NYC). And the brilliant one: zip-tied laminated signs to the chain-link fences of the lots themselves, telling whoever walked past exactly who owned this land, that it was public, and how to organize with neighbors to get access.

The map found the data; the signs found the people. The online tool added a crucial social feature — strangers who cared about the *same lot* could find each other — and 596 Acres supported 143 neighbor-led campaigns that turned NYC vacant lots into community gardens, farms, and play spaces before the organization sunset. The model spread: Grounded in Philly mapped 32,000+ vacant Philadelphia lots with the Public Interest Law Center; Chicago's Large Lots program (a sibling story on this shelf) turned the same insight into $1 city lot sales.

What it teaches: public data becomes neighborhood power through three moves — map it, post it physically at the exact place it describes, and wire it so people organizing the same place meet each other. The fence sign is the most underrated interface in civic tech.

Details

• era: 2011–2018
• place: New York City
• illustrates: six-lessons-neighborhood-tech, remix-at-neighborhood-scale
• source note: 143 campaigns per 596acres.org's own record; organizational sunset ~2018 with Living Lots continuing — Living Lots platform code: django-livinglots core is BSD-3-Clause, the NYC deployment AGPL-3.0.
• practice kind: story