Learn about building an ADU in Napa or Sonoma County

Secure your future, support the community

Whether you’re new to learning about ADUs or ready to begin the process, we have the information you need.


The best first step for your ADU

Customized feasibility consults for your property

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Explore our ADU Standard Plans

Save time and money with a standard ADU plan! Connect today with the designer, architect, or prefab company.

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Get inspired

Check out floorplans, see photos, and learn more from your neighbors who are building ADUs.

Did you miss one of our webinars?

Our webinars provide residents with clear information about the benefits of ADUs and the design, building, and planning phases.

 

Looking for the most up-to-date information?

Check out our blog, with tools, tips, news, and all the latest updates.

 

Resources for every step of the way

Everything you need to know if you’re considering building an ADU or Junior ADU.