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Sonoma County Now Allows Junior Accessory Dwelling Units in Unincorporated Areas

house on clover backgroundIn January 2017, Sonoma County adopted an ordinance to encourage the creation of more affordable housing. This ordinance aligns with recent State legislation and helps address the County’s housing crisis by encouraging the construction of Accessory Dwelling Units and Junior Accessory Dwelling Units.

An Accessory Dwelling Unit is a small permanent home that may be established in addition to the main dwelling on a parcel zoned for residential use. A Junior Accessory Dwelling Unit is a very small living unit within a single-family dwelling. It’s 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. Transient occupancy, including vacation rentals, is prohibited in Junior Units and Accessory Dwelling Units. 

Accessory Units and Junior Units provide an opportunity for homeowners to quickly and inexpensively create an additional living unit within their home. They provide rental housing stock and provide homeowners with additional financial security.

Do you have questions related to this new legislation?
Find the answer to the questions below and other frequently asked questions

  • Can my non-bedroom space be converted into a legal bedroom and then into a Junior Accessory Dwelling Unit?
  • Who can live in an accessory unit?
  • What is the difference between an Accessory Dwelling Unit vs a Junior Accessory Dwelling Unit vs. a guest house?

Ordinance and more information on Accessory Units and Junior Units

Contact Information

Contact us by Phone
2550 Ventura Avenue
Santa Rosa, CA 95403
38.465074, -122.723705