Garage conversion rules in Monterey, CA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Government Code 65852.2 expressly authorizes converting an existing garage into an ADU, with no replacement parking allowed and ministerial approval required.
California ADU law requires cities to ministerially approve conversion of existing garages, carports, or other accessory structures into ADUs. Replacement parking cannot be required when a garage is converted. Setback requirements for converted structures are limited to four feet for side and rear yards. Owners may add up to 150 square feet for ingress and egress. The conversion qualifies for the same 60-day ministerial review and statewide HCD oversight as new ADUs.
Local denials inconsistent with state law are unenforceable; HCD may invalidate local ordinances and applicants may sue for fees.
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