Accessory Dwelling Unit Survey
Published: November 20, 2018
The County of Sonoma and partnering cities want your input on potential barriers and incentives for building accessory dwelling units and/or junior accessory dwelling units. Thank you for taking the time to fill out this survey to inform our efforts to increase housing in Sonoma County.
What are ADUs and JADUs?
Accessory dwelling units (ADUs) are backyard cottages of up to 1,200 square feet. An ADU is a small permanent home that may be established in addition to the main dwelling on a parcel zoned for residential use. ADUs may be attached or detached from the main dwelling.
Junior Accessory Dwelling Units (JADUs) are very small living units (up to 500 square feet) created out of a bedroom within an existing single family home. A JADU is created by adding an efficiency kitchen and exterior door to an existing, legal bedroom. It may include a bathroom or may share a bathroom with the house. A residential property can have both an ADU and a JADU if requirements (septic, etc.) can be met.
More information about ADUs and JADUs
2550 Ventura Avenue
Sign Up for Email Updates
Accessory Units & Junior Units
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.
Find Out More
Sonoma County Community Development Commission
The Community Development Commission (CDC) is dedicated to promoting decent and affordable housing, revitalizing communities, and supporting public services.
Community Development Commission
CDC Affordable Housing Information
Online Permitting Tools
Experienced users can go directly to the applicable online tools below. (New users: Learn more.)
Apply for Permits Online
Apply for certain residential Building permits online. (Registration/log in required.)
Permit History Lookup
Check a property's permit history.
Permit Status & Pay Fees
Check the current status of a Permit, Inspection, or Plan Check. (Search for your permit number.)
Search for a property's Zoning (by address or parcel number). Find out what the Zoning Codes mean.