The following link will take you to the California Department of Housing and Community Development, CA Accessory Dwelling Unit Handbook

The Handbook provides excellent information on Accessory Dwelling Units (ADUs) and Junior ADUs (JADUs), including recent statutory requirements for the permitting of ADUs/JADUs. 

The following link provides the Solano County public handout, which describes rules and regulations that the County has adopted relating to ADUs and JADUs. Solano County ADU Handout

The following link will provide the recently adopted ordinance amending the Chapter 28 Zoning Regulations regarding Dwellings, including Accessory Dwellings and Junior Accessory Dwellings. 

Ordinance 2020-1817

For more information, please visit the California Department of Housing and Community Development at