Garage conversion rules in Miami, FL — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Garage conversions to ADUs in the City of Miami require building permits and HVHZ compliance. Miami 21 governs ADU eligibility by transect zone. Impact-resistant openings mandatory. Licensed contractors required.
Garage conversions in the City of Miami may qualify as ADUs under Miami 21 zoning code if the property is in an eligible transect zone. Building permits are required. All conversions must meet HVHZ hurricane building code requirements including impact-resistant windows and doors. Licensed contractors are mandatory for all construction. The converted space must meet minimum habitable area standards. Owner occupancy of either the main residence or ADU is required. Parking replacement may be needed per Miami 21 parking requirements.
Unpermitted conversions result in stop-work orders. Non-HVHZ compliance requires retrofitting. Unlicensed contractor work is a state violation.
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Side-by-side rule comparisons with other cities in Miami-Dade County.
See how other cities in Miami-Dade County handle garage conversions.
See how Miami's garage conversions rules stack up against other locations.
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