Los Angeles
Los Angeles has a mature ADU rule path; verify parcel, zoning, setbacks, fire, and utility constraints before filing.
City directory
Start with a known market, then enter the address for the source-backed result card.
Browse ADUAllowed city pages with official source paths, confidence labels, and address lookup.
Los Angeles has a mature ADU rule path; verify parcel, zoning, setbacks, fire, and utility constraints before filing.
San Diego ADU eligibility starts with companion/junior unit rules plus zoning and parcel constraints.
San Jose has official ADU rules and a local permit workflow; parcel facts still control final eligibility.
Seattle ADU/DADU rules are official and permit-driven; verify lot, floor area, trees, and utility constraints.
Portland ADU rules use city permit guidance plus zoning and site constraints.
Austin ADU eligibility depends on local land-development rules and property profile constraints.
Denver ADU eligibility starts with whether the zone district allows ADUs, then design and permit review.
Chicago ADUs are allowed through a city program with location and ordinance constraints; verify address eligibility.
Use this page as a public web reference, not an official agency record. The linked official source remains the final authority.
ADUAllowed. "ADUAllowed City Directory | Official Source Pages". https://www.aduallowed.com/cities/. Reviewed Jun 2026.
Source and citation notes