Garage conversion rules in Pomona, CA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Pomona allows garage conversions to ADUs under Ordinance No. 4281 and state law. Converted garages don't require replacement parking. The residential use of garages is regulated under the Zoning Code.
Under Pomona Ordinance No. 4281 and California Government Code Section 65852.2, garages may be converted to ADUs. When a garage, carport, or covered parking structure is converted to an ADU, the city cannot require replacement of lost parking spaces. Conversion ADUs have no minimum setback requirements and height limits don't apply. The converted space must meet Building Code habitability standards including egress, ventilation, and fire safety. The Pomona Zoning Code regulates residential use of garages. Code Compliance at 909-620-2374 handles enforcement of illegal conversions. Contact Planning at (909) 620-2191 for ADU applications.
Illegal garage conversions are a common code violation. Legalization provisions under AB 2533 apply to units built before 2020. Contact Code Compliance for enforcement questions.
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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 Pomona's garage conversions rules stack up against other locations.
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