Property-specific ADU planning
Sonoma County · California
ADU planning for your Santa Rosa property
Review available property information, identify what is still missing, and frame the local questions that must be confirmed before design, budgeting, permitting, or construction decisions.
Local authority and planning resources
Local sources have not yet been reviewed for this guide. Confirm the responsible planning and building authority for the parcel before relying on local requirements. You can still prepare property questions using the service guides below.
This is an informational guide, not an office-location listing or confirmation that ADU California accepts projects here. Contact the team to confirm availability. Parcel boundaries, hazards, utility capacity and site suitability remain unverified.
A useful first review
Separate what is available from what still needs verification.
01
Confirm the property
Start with a complete address and review the available parcel, building, and map context.
02
Identify the unknowns
Keep missing setbacks, easements, utilities, access, hazards, and local requirements visible.
03
Choose the next review
Use the preliminary result to prepare a focused conversation with the required professionals and agencies.
Explore project types
Compare the scope before choosing a solution.
These pages explain the questions each project type introduces. They do not assert that a particular scope is permitted or suitable for your address.
California directory
Explore more city guides.
The next useful action
Put your address at the center of the conversation.
The online review is preliminary and is not a permit decision, survey, engineering opinion, construction document, final price, or guaranteed schedule.