Garage conversion rules in Downey, CA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Downey allows garage conversions to ADUs under state law and DMC §9414.08. Replacement parking is not required. No minimum setback for conversions. Height limits don't apply to conversions. Driveway max 20 feet wide.
Under Downey's ADU ordinance (DMC §9414.08) and California Government Code Section 65852.2, garages may be converted to ADUs or JADUs. When a garage is demolished or converted, replacement parking spaces are not required. Conversion ADUs have no minimum setback requirements and height limits don't apply. For garage conversions, the driveway cannot be wider than 20 feet. The entrance must be separate from the primary dwelling. Exterior materials, colors, roof pitch, and architecture must match the primary unit. JADUs (under 500 sq ft) may share a bathroom with the main house.
Unpermitted conversions face code enforcement. A building permit is required for all garage conversions. Contact Community Development at (562) 904-7154.
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Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle garage conversions.
See how Downey's garage conversions rules stack up against other locations.
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