ADUs - The Process
Updated: Aug 7
When it comes to local expertise, the Napa Sonoma ADU Center is a standout nonprofit resource for homeowners in the North Bay Area, now serving Marin County. They offer a wealth of free tools, webinars, and personalized feasibility consultations. Think of them as a guiding hand for your ADU journey, providing step-by-step support, cost estimates via their handy calculator, and connections to trusted local professionals. In other words, they’re a fantastic starting point for anyone in Napa or Sonoma looking to add an ADU.
Their Guidebook: NapaSonomaADUCenter ADU Workbook & Exercises
Their Vendor List: NapaSonmaADUCeneter Vendor Directory
Their ADU Calculator: NapaSonomaADUCenter Calculator
This is the best online source for information on California ADU laws, the opportunities they offer to ADU builders, and the unique issues that arise when applying them to individual ADU projects. I highly recommend them for ADU guides and handbooks that address a wide range of specific needs. You might want to consider becoming a member if you are building an ADU.
“Casita Coalition, the trusted statewide nonprofit authority on ADUs, worked with Reuben, Junius & Rose to draft a model local ordinance compliant with state law. Join the City of San Jose, San Diego and others to adopt ADU Condo ordinances!”
“When Casita Coalition started, there were no states with strong ADU law. Our founders wrote the bills, built the coalition and got the bills passed that made California the first state to create uniform standards for ADUs, establishing the foundation for the ADU revolution.”
All Guidebooks & Memos: Guidebooks & Resources
ADU Academy: Casita Academy - Learning Pathways
State of California
AARP
