California · CA
California residential & ADU permit data
The nation's largest ADU market
Housing law
California mandates ministerial (by-right) approval of accessory dwelling units statewide, with a 60-day decision deadline and one ADU plus one junior ADU allowed on most single-family lots; owner-occupancy is generally not required.
SB 9 allows by-right duplexes and urban lot splits on single-family lots, and newer transit-oriented upzoning (SB 79) phases in from 2026.
ADU ministerial approval (Gov. Code Ch. 13)SB 9 (urban lot splits)SB 10 / SB 79 (transit upzoning)
Jurisdictions we cover
Los AngelesSan FranciscoSan Diego
Why Igni for California
Built for the #1 ADU market in the US
The only feed that flags SB-9 lot-splits and SB-10/SB-79 transit corridors
Clean sourcing from official open-data portals — public records, no gray-area scraping
Start tracking California permits
Fresh, filterable residential and ADU permit leads — delivered before your competitors even know.
Sourced from official open-data portals for Los Angeles, San Francisco and San Diego (public records via Socrata APIs).
Informational only, not legal advice. Housing law changes — verify current statutes before relying on this.