Free tool

Building permit lookup by city

Search recent residential and ADU building-permit activity in 56 US cities across 37 states. Choose a city, add a ZIP code if you want, and see the freshest permits — sourced directly from official municipal open-data portals.

Looking for a specific market? This is a quick {city} permit search and permit-records lookup. For full permit history, exports and daily lead alerts, see the full Igni feed.

Search permits

Want full history, exports, or daily alerts?

This free lookup shows a sample of recent activity. The full Igni feed adds complete history, filtering, exports and daily lead alerts.

How the lookup works

Official open data

Every permit is sourced from the city's own open-data portal — public records, normalized into one consistent format.

Typed ADU activity

Accessory dwelling units are classified by type — detached, attached, junior ADU and conversions — so ADU work stands out.

Privacy-first

Results show ZIP, type, ADU class, valuation and date — never a street address.

See coverage by state and city

Browse permit and ADU-law context for every covered market on the state coverage hub, or read our guide to finding ADU permit leads.

Permit lookup — FAQ

Is the permit lookup free?

Yes. The permit lookup is a free tool — pick a city, optionally enter a ZIP, and see recent residential and ADU permit activity. Full history, exports and daily alerts are part of the paid Igni feed.

Which cities can I search?

You can search 56 US cities across 37 states, all sourced from official municipal open-data portals. Pick a city from the dropdown to see its recent permits.

Does the lookup show property addresses?

No. To respect privacy, the lookup shows ZIP, permit type, ADU classification, valuation and date — never a street address. Contact us about full lead access.

Where does the permit data come from?

Every record comes from the city's own official open-data portal. Igni ingests it on a continuous schedule, normalizes it into one format and classifies ADU activity by type.

Informational only. Permit results reflect recent activity from official open-data portals, not all-time totals, and may lag the source feed.