Garage conversion rules in San Ramon, CA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Garage conversions to ADUs permitted under CA statewide ADU law. No replacement parking required. Must meet building code for habitable space. Reviewed through building permit process.
California state law (Gov. Code §65852.2) specifically encourages garage conversions to ADUs and JADUs. Cities cannot require replacement parking when a garage is converted to an ADU within 1/2 mile of public transit. Conversions must meet building code for habitable space: ceiling height, ventilation, egress, insulation, electrical, and plumbing. A JADU conversion (up to 500 sq ft within existing structure including garage) has a streamlined permit process. The original garage structure often needs upgrades for fire separation from the main dwelling. Laundry hookup required for full ADU; JADU may share main house facilities.
Unpermitted conversion: standard building code enforcement. Must bring to code or restore to garage. Safety violations: immediate correction.
San Ramon, CA
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San Ramon, CA
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San Ramon, CA
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San Ramon, CA
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Side-by-side rule comparisons with other cities in Contra Costa County.
See how other cities in Contra Costa County handle garage conversions.
See how San Ramon's garage conversions rules stack up against other locations.
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