What the directory does
The directory organizes public city, county, and state source material into searchable plan, provider, and jurisdiction pages. Each listing links back to official sources whenever available.
About
A source-backed directory for pre-approved ADU plan programs.
ADU Plan Finder helps homeowners, designers, builders, and local housing professionals discover official pre-approved ADU plan programs by city and county.
How to use it
Start with your city or county, compare accepted plan listings, review origin program details, and follow official source links before contacting a provider or local building department.
What the directory is not
ADU Plan Finder is not a government directory and does not guarantee approval for a property. Local rules, fees, and accepted-plan status can change.