Tulare County, CA Accessory Structures: Garage Conversions (2026)

Most garage-to-living-space projects in unincorporated Tulare County are handled as accessory dwelling unit (ADU) conversions under the County Zoning Ordinance (Ordinance No. 352) and California state ADU law, which preempts conflicting local standards for both cities and counties. Under Gov. Code 66314 and 66323, a conversion of existing space within or attached to a home (including a garage) into an ADU is ministerially approved if it meets state criteria, and the County cannot impose minimum-lot-size requirements or off-street parking replacement when a garage, carport, or covered parking structure is converted (Gov. Code 66314, subd. (d)(11)). California's 2025 ADU Handbook, summarized in HCD's October 8, 2025 letter to Tulare County, also confirms a local agency may not require parking as a condition of permitting a junior ADU even when the JADU is converted from an attached garage. A simple garage conversion that does not create an independent dwelling (for example, turning a garage into a den) is treated as a building alteration and needs a building permit and zoning clearance from RMA, but it does not get the ADU parking and approval protections. Because HCD has flagged the County's 2019 ADU ordinance as possibly outdated, applicants should expect state ADU standards to govern conversions until the County adopts a fully compliant ordinance.