Garage conversion rules in Seminole County, FL — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Converting a garage into living space in unincorporated Seminole County is a change of use that needs a building permit and zoning review; if it creates a second dwelling it must meet the county's ADU standards, and any lost covered parking usually has to be replaced.
There is no single 'garage conversion' section; the county regulates it through the building permit and zoning process under the Land Development Code and the Florida Building Code. Adding a kitchen or a separate living unit converts the space into an accessory dwelling unit, which triggers SCLDC Sec. 30.6.1.3 owner-occupancy, 30-day minimum rental, and off-street parking requirements. Required parking spaces eliminated by the conversion generally must be re-provided elsewhere on the lot. Structural, electrical, and egress work must be permitted and inspected. Deed restrictions or HOA rules may prohibit conversions outright. In the incorporated cities, city zoning controls.
An unpermitted garage conversion is a code violation; the county can require permits after the fact, order the space restored, and assess Code Enforcement fines.
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