Property Violations Registry — Multi-City Code Data
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Property Violations Registry — Multi-City Code Data
Official city building code-enforcement / property-violation records (not permits) in one unified schema across Chicago, NYC, San Francisco and Austin. Violation ID, address, type, status, issued date, description. Distress signals for RE investors, insurers, contractors, title/lending.
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Bryan
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Property Violations Registry — Multi-City Code Enforcement
Official city building code-enforcement / property-violation records (NOT permits) from government open-data portals, normalized into one schema across cities. Open violations are a leading distress signal for RE investors/wholesalers, insurers, contractors (repair leads), and title/lending underwriters.
Cities (all endpoints data-layer verified 2026-07-12)
| City | Source dataset | Rows |
|---|---|---|
| Chicago, IL | Building Violations (22u3-xenr) | ~2.0M |
| New York City, NY | HPD Housing Maintenance Code Violations (wvxf-dwi5) | ~11M |
| San Francisco, CA | DBI Housing/Building Complaints (gm2e-bten) | ~333k |
| Austin, TX | Code Enforcement Cases (6wtj-zbtb) | ~83k |
All are open Socrata SODA JSON endpoints — no login, no CAPTCHA.
Unified schema
raw preserves the full source row so no field is ever lost.
Input
cities— any ofchicago,nyc,san_francisco,austin(default: all).status—alloropen(open/active only — the distress signal).maxRecordsPerCity— cap per city, newest first (empty = full registry).
Proof
node test_smoke.mjs pulls real rows from every city and asserts unified schema, correct
city tagging, real content (id + address + date), and a working open-only filter. No account,
no cost. Adding a city = one adapter in src/cities.js (endpoint + normalize + isOpen).
