Garage conversion rules in Menifee, CA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Menifee lets homeowners convert attached or detached garages into ADUs or junior ADUs ministerially, with no replacement parking required for the main house and existing-structure conversions exempt from normal setback rules.
Under Development Code Section 9.295.020, a garage converted to an accessory dwelling unit is approved ministerially through building plan check, mirroring state law (Government Code Section 65852.2, now Section 66310 et seq.). If a garage, carport, or covered parking structure providing required parking is demolished or converted for an ADU, the City cannot require replacement spaces. Conversions of existing permitted structures are exempt from the 4-foot side and rear setback standards, and a demolition permit for a detached garage replaced by an ADU is processed with the ADU application. An attached garage also counts as interior space of the residence, so it can house a junior ADU of up to 500 square feet with an owner-occupancy covenant.
Converting a garage to living space without building permits is a Menifee Municipal Code violation subject to administrative citations under Chapter 1.03 and infraction or misdemeanor prosecution under Section 1.01.200.
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Side-by-side rule comparisons with other cities in Riverside County.
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