Hartford building & ADU permits
Recent permit activity, updated continuously.
Hartford is Connecticut's state capital. Under the state's Public Act 21-29, ADUs are as-of-right in single-family zones unless a town opted out — so local rules vary widely. Hartford publishes its permits under a clean CC0 public-domain license, which Igni ingests and classifies for ADU activity.
Igni is tracking 1,737 residential and building permits in Hartford, CT — including 1 classified accessory-dwelling-unit (ADU) filing. The most active ZIP is 06106. The most recent filing Igni tracked was Sep 18, 2026. All records come from Open Data Hartford (ArcGIS), an official government open-data feed, and are refreshed continuously.
1737
Permits tracked
1
ADU permits
7
Distinct ZIP codes
Sep 18, 2026
Newest permit
Recent permits
A sample of the freshest permits in this jurisdiction — ZIP and city only (no street addresses).
| ZIP | Permit type | ADU type | Valuation | Applied |
|---|---|---|---|---|
| 06106 | Commercial | — | $500 | Sep 14, 2026 |
| 06114 | Residential | — | $18,000 | Sep 17, 2026 |
| 06112 | Residential | — | $42,464 | Sep 17, 2026 |
| 06106 | Residential | — | $1,500 | Sep 17, 2026 |
| 06106 | Residential | — | $14,150 | Sep 17, 2026 |
| 06106 | Residential | — | $9,027 | Sep 17, 2026 |
| 06112 | Commercial | — | $1,000 | Sep 17, 2026 |
| 06106 | Commercial | — | $98,000 | Sep 17, 2026 |
| 06120 | Commercial | — | $1,000 | Sep 17, 2026 |
| 06114 | Residential | — | $9,352 | Sep 17, 2026 |
| 06112 | Commercial | — | $1,400 | Sep 17, 2026 |
| 06120 | Commercial | — | $1,000 | Sep 17, 2026 |
| 06106 | Commercial | — | $14,000 | Sep 17, 2026 |
| 06106 | Commercial | — | $1,000 | Sep 17, 2026 |
| 06106 | Commercial | — | $14,000 | Sep 17, 2026 |
| 06103 | Commercial | — | $5,000 | Sep 17, 2026 |
| 06114 | Commercial | — | $6,000 | Sep 17, 2026 |
| 06120 | Residential | — | $8,663 | Sep 17, 2026 |
| 06112 | Residential | — | $24,723 | Sep 16, 2026 |
| 06120 | Residential | — | $28,917 | Sep 16, 2026 |
Top ZIP codes by recent activity
Housing law — Connecticut
Connecticut's Public Act 21-29 (2021) makes accessory dwelling units permitted as-of-right in single-family zones, but let municipalities opt out by a two-thirds vote — and a majority of towns did, so whether an ADU is as-of-right depends heavily on the specific town.
Connecticut has no statewide 'missing middle' zoning law in force; a 2025 omnibus housing bill (HB 5002) with transit-oriented and middle-housing provisions was vetoed, leaving density to local zoning.
Data source
Sourced from Open Data Hartford (ArcGIS). CC0 — public domain (commercial use permitted).
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Hartford permit records into leads.
Hartford permit data — FAQ
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Informational only, not legal advice. Headline counts reflect all permits Igni has tracked for this jurisdiction; the table shows recent activity. Housing law changes — verify current statutes before relying on this.