1 county-level rule, plus city-specific rules for 2 cities in Kern County, California.
Verified from official government sources
Unincorporated Kern County regulates accessory dwelling units under Title 19, Chapter 19.90 of the County Zoning Ordinance, implementing California Government Code §65852.2 and §65852.22. Detached ADUs may be up to 1,200 square feet; attached or interior conversion ADUs are capped at 1,200 sq ft or 50% of the principal dwelling's floor space, whichever is less. Only one ADU is allowed per legal lot, and it must comply with the underlying zone's setbacks and height limits.
2 cities in Kern County have their own accessory structures rules. Each link goes to that city's dedicated page with code citations.
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