Accessory Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs) are an inexpensive way to create smaller, more affordable rental housing units that may provide revenue streams for you, while increasing the availability of rental housing in the county.
ADU Customer Service Hours
Permit Sonoma offers dedicated staff and customer service hours in our Permit Center to help customers navigate the process of permitting an ADU. You can ask questions and get more information, and if you're ready to apply, staff will review and accept your complete ADU application.
Hours of Operation: Tuesdays and Thursdays 9:00 AM to 12:00 PM
Make an Appointment
More Information and Application Checklist: Download ADU flyer (PDF)