Garage conversion rules in Davis County, UT — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Converting a garage to living space needs a building permit. Utah law lets an attached garage count as an internal ADU when it is habitable and joined to the home by a common wall, making conversion to a rental unit a permitted use in residential zones.
Under Utah Code 10-9a-530, a "primary dwelling" includes a garage if the garage is habitable space connected to the home by a common wall, and an internal ADU created there is a permitted use in residentially zoned areas. Any conversion still requires a building permit for egress, insulation, and life-safety upgrades from your city (Layton) or Davis County. A city may require one added on-site parking space and may bar renting the unit if the owner does not live there. Detached-garage conversions follow local zoning.
Unpermitted conversions can trigger code enforcement, fines, and orders to restore the space or bring it up to code.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Davis County's garage conversions rules stack up against other locations.
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