Garage conversion rules in Tuolumne County, CA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Garage conversions to ADUs are permitted in Tuolumne County under California state law. Converted garages are exempt from development standards like setbacks and lot coverage, and the county cannot require replacement of lost parking spaces.
Under CA Gov Code §65852.2, converting a garage into an ADU is a protected right. The conversion is not subject to additional development standards. The county cannot require replacement parking when a garage is converted. Expansion up to 150 sq ft is allowed for ingress/egress. New utility connections and fees are not required for conversions within existing structures. Fire sprinklers are only required if the primary dwelling has them. The county's 60-day permit review timeline applies.
Unpermitted conversion: standard building code enforcement. Must bring to code or restore to garage. Safety violations: immediate correction.
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See how Tuolumne County's garage conversions rules stack up against other locations.
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