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.
Where code has not yet been updated in Sonoma County
Until local code is updated, ADU applications in these jurisdictions must be evaluated against state code, which in most cases is more liberal than the current local code.