ADU Code by Town – Sonoma County

Municipalities throughout California are updating their accessory dwelling unit code to comply with new state regulations that went into effect in January of 2017. In most cases, these changes will make it easier and more affordable to create an ADU.    

Where code has been updated in Sonoma County. Click on the links for details of the updated ADU code.  

Cloverdale    Healdsburg    Petaluma    Rohnert Park    City of Sonoma     Unincorporated Sonoma County

Where code has not yet been updated in Sonoma County

In these jurisdictions, until local code is updated, ADU applications must be evaluated against state code, which in most cases is more liberal than the current local code.  

Cotati       Santa Rosa (goes to City Council on Dec. 5)       Sebastopol (may go back to Planning Commission on Dec. 12)       Windsor (goes to Town Council for adoption on Dec. 6)