We believe in showing exactly where our data comes from and where our coverage gaps are. Here's every city in our database, the source, and when it was last refreshed.
| City | State | Permits | Source | Status |
|---|---|---|---|---|
| Chicago | IL | 500,000 | Socrata | Active |
| Columbus | OH | 500,000 | ArcGIS | Active |
| Austin | TX | 500,000 | Socrata | Active |
| Los Angeles | CA | 499,997 | Socrata | Active |
| Philadelphia | PA | 499,924 | CARTO | Active |
| San Francisco | CA | 444,205 | Socrata | Active |
| New York City | NY | 411,059 | Socrata | Active |
| Honolulu | HI | 373,166 | Socrata | Active |
| Boston | MA | 283,731 | Socrata | Active |
| Baltimore | MD | 278,115 | ArcGIS | Active |
| Fort Worth | TX | 260,588 | Socrata | Active |
| San Diego County | CA | 236,722 | Socrata | Active |
| Seattle | WA | 189,168 | Socrata | Active |
| New Orleans | LA | 140,834 | Socrata | Active |
| Baton Rouge | LA | 139,091 | Socrata | Active |
| Dallas | TX | 126,840 | Socrata | Active |
| Minneapolis | MN | 91,053 | ArcGIS | Active |
| Pittsburgh | PA | 60,812 | CKAN | Active |
| Washington DC | DC | 50,087 | ArcGIS | Active |
| Nashville | TN | 30,223 | Socrata | Active |
| Louisville | KY | 17,622 | ArcGIS | Active |
| San Jose | CA | 17,445 | CKAN | Active |
| Milwaukee | WI | 15,892 | CKAN | Active |
| Santa Rosa | CA | 14,974 | Socrata | Active |
PermitStack aggregates building permit data from four types of official municipal open data portals:
All data is refreshed daily at 3 AM UTC. Each permit is normalized into a consistent schema, classified into one of 19 categories, and geocoded with latitude/longitude coordinates.
Missing a city you need? Let us know — we add new cities regularly based on customer requests.