Free California ADU Handbook
55 pages. A clearer place to begin.
Read or download the official March 2026 Accessory Dwelling Unit Handbook from the California Department of Housing and Community Development.
Start a property review →
Your free ADU planning reference
Open the official PDF, then use your browser’s download control to save a copy. No email address or marketing signup is required.
Open / download free handbook (PDF) ↓The PDF opens in a separate tab so your Team All Star page stays available.
Published by California HCD. Team All Star Construction did not author this handbook and is not affiliated with or endorsed by HCD.Find the topics that fit your project
Use the contents to locate ADU types, JADUs, setbacks, parking, fees, utilities, permits, multifamily properties and other planning questions.
Bring your questions to the property review
The handbook provides statewide guidance. Gather the questions relevant to your address and confirm the current requirements with the city or county. The guide does not establish what can be built on your individual lot.
Bring the plan back to your property.
Virtual Estimates Available. Share your address and goals to discuss the next step.
Request a feasibility reviewBrowse all ADU resources