Access 36,718 building permits issued in Hartford, Connecticut through a single REST API, normalized into a consistent schema. Data through October 21, 2026.
Most common permit types issued in the last year.
Drill into the most common permit categories in Hartford.
Permit activity for individual ZIP codes in Hartford, newest first by volume.
Every permit we hold for one Hartford address (roof, HVAC, solar, additions, with dates and contractors) in a single call to /v1/property/history. Used by lenders for collateral review, insurers for roof and system age, and real estate teams for due diligence.
The 10 most recent permits issued in Hartford, Connecticut. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-10-21 | COM-ALT-26-000454 | 505 WETHERSFIELD AV, HARTFORD, CT 06114 | Interior remodel | Commercial Alteration Permit |
| 2026-10-21 | MISC-PLM-26-000490 | 140 FARMINGTON AV, HARTFORD, CT 06105 | Plumbing | Plumbing Permit |
| 2026-10-21 | RES-ALT-26-000551 | 66 GOSHEN ST, HARTFORD, CT 06106 | Interior remodel | Residential Alteration Permit |
| 2026-10-21 | COM-ALT-26-000396 | 854 CAPITOL AV, HARTFORD, CT 06106 | Interior remodel | Commercial Alteration Permit |
| 2026-10-21 | MISC-MEC-26-000406 | 55 IMLAY ST, #A, HARTFORD, CT 06105 | Mechanical | Mechanical Permit |
| 2026-10-21 | MISC-PLM-26-000479 | 303 WESTLAND ST, HARTFORD, CT 06112 | Plumbing | Plumbing Permit |
| 2026-10-21 | MISC-PLM-26-000532 | 64 HADDAM ST, HARTFORD, CT 06106 | Plumbing | Plumbing Permit |
| 2026-10-21 | MISC-TEMPSTR-26-000082 | 42 PRATT ST, HARTFORD, CT 06103 | Other | Temporary Structure Permit |
| 2026-10-21 | RES-ALT-26-000577 | 33 FLATBUSH AV, HARTFORD, CT 06106 | Interior remodel | Residential Alteration Permit |
| 2026-10-21 | COM-ALT-26-000457 | 1594 PARK ST, HARTFORD, CT 06106 | Interior remodel | Commercial Alteration Permit |
Query Hartford, Connecticut permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search Hartford permits issued in the last 30 days curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Hartford&state=CT&issued_after=2026-09-23"
The official record sets behind this page, with the date each one's data runs through.
| Record set | Source | Permits | Data through | Note |
|---|---|---|---|---|
| Permits | open data (ArcGIS) | 36,718 | 2026-10-21 |
Related coverage in Connecticut and nationwide.
We ingest Hartford's official permit records directly from ArcGIS Hub and normalize them into a consistent JSON schema across our U.S. jurisdictions.
The newest permit we hold for Hartford, Connecticut is dated October 21, 2026. We re-read this source on a nightly schedule and publish the date the data runs through rather than the date we last polled. Some cities publish permits days after they are filed.
Yes — search Hartford permits free in the browser, no signup needed. The API needs a free key (100 requests per day, no credit card).
Yes. CSV export is available on every plan, including free, with the row cap rising by tier. Webhooks (Developer plan and up) push new permits after each nightly ingest.
The median time from permit filing to issuance in Hartford, Connecticut is 20 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.
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