Sonoma County ADU Ordinance
Check out our ADU Glossary to better understand any unfamiliar terms.
Check out our ADU Glossary to better understand any unfamiliar terms.
ADUs are allowed in residential zones (R1, R2, R3, RR, and AR), agricultural and resource zones (LIA, LEA, DA, and RRD), and mixed-use zones (PC, CO, C1, C2, LC, WH, AH). ADUs are not allowed on parcels within the Z (Accessory Dwelling Unit Exclusion) Combining District or parcels subject to a Williamson Act contract.