Access 35,033 building permits issued in Hartford, Connecticut through a single REST API. Refreshed daily from the official Hartford open data portal and normalized into a consistent schema.
Most common permit types issued in the last year.
Drill into the most common permit categories in Hartford.
The 10 most recent permits issued in Hartford, Connecticut. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-06-29 | MISC-TEMPSTR-26-000045 | 251 SIGOURNEY ST, HARTFORD, CT 06105 | Other | Temporary Structure Permit |
| 2026-06-29 | MISC-TEMPSTR-26-000042 | 600 MAIN ST, HARTFORD, CT 06103 | Other | Temporary Structure Permit |
| 2026-06-25 | RES-ALT-26-000280 | 16 ADAMS ST, HARTFORD, CT 06112 | Interior remodel | Residential Alteration Permit |
| 2026-06-25 | COM-ALT-26-000289 | 2730 MAIN ST, HARTFORD, CT 06120 | Interior remodel | Commercial Alteration Permit |
| 2026-06-25 | COM-ALT-26-000253 | 20 NEW PARK AV, HARTFORD, CT 06106 | Interior remodel | Commercial Alteration Permit |
| 2026-06-25 | RES-ALT-26-000276 | 931 TOWER AV, HARTFORD, CT 06112 | Interior remodel | Residential Alteration Permit |
| 2026-06-25 | COM-ALT-26-000267 | 1000 CAPITOL AV, #4A, HARTFORD, CT 06106 | Interior remodel | Commercial Alteration Permit |
| 2026-06-25 | RES-ALT-26-000252 | 89 MAPLETON ST, HARTFORD, CT 06114 | Interior remodel | Residential Alteration Permit |
| 2026-06-25 | RES-ALT-26-000303 | 65 WOODSTOCK ST, HARTFORD, CT 06112 | Interior remodel | Residential Alteration Permit |
| 2026-06-25 | RES-ALT-26-000304 | 23 MARGARITA DR, HARTFORD, CT 06106 | Interior remodel | Residential Alteration Permit |
Query Hartford, Connecticut permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search all Hartford permits issued this month curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Hartford&state=CT&issued_after=2026-04-01"
Related coverage in Connecticut and nationwide.
We ingest data directly from the official Hartford open data portal (ArcGIS Hub) daily. This is the same source used by the city's own public dashboards, normalized into a consistent JSON schema across our U.S. jurisdictions.
Our automated ingestion runs daily at 03:00 UTC. The latest permit in our database for Hartford, Connecticut was issued on June 29, 2026. Permit backlogs on the city side may mean some permits take a few days to appear.
Yes — our free tier includes 100 requests per day, enough to search and filter Hartford permits interactively. Sign up for a free API key to get started.
Yes. CSV export is available on every plan, including free, with the row cap rising by tier. Real-time webhooks for changed permits are on the Developer plan and above.
The median time from permit filing to issuance in Hartford, Connecticut is 21 days, based on permits issued in the last 12 months. Smaller permit types (residential alteration, electrical) typically issue faster; new construction and large additions usually take longer.
Free tier covers 100 requests per day. No credit card required.
Get Free API Key