California ADU Law Resources
Annotated laws, local ordinances, and guidance documents for Accessory Dwelling Units
California Law
Government Code Title 7, Chapter 13 - the full text of California's ADU and JADU statutes with annotations.
Browse sections →Local Ordinances
ADU ordinances from California cities and counties, with analysis of how they implement state law.
View ordinances →HCD Letters
Guidance letters from the California Department of Housing and Community Development on ADU compliance.
Read letters →About This Resource
This library provides annotated California ADU law with commentary, cross-references to guidance documents, and analysis of local implementation. Content is maintained by The ADU Center.