Davis County, UT Accessory Structures: Garage Conversions (2026)
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.
Key Facts
- State law
- Utah Code §10-9a-530
- Attached garage
- May qualify as internal ADU
- Building permit
- Required for habitable conversion
- Common wall
- Connection to home required
- Rental
- Owner-occupancy may be required
Summary
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.
The term also includes a garage if the garage is a habitable space and is connected to the primary dwelling by a common wall.
Full Breakdown
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.
Violations & Fines
Unpermitted conversions can trigger code enforcement, fines, and orders to restore the space or bring it up to code.
Frequently Asked Questions
Can I convert my garage into an apartment?
Do I need parking after converting the garage?
Sources & Official References
Other rules in Davis County
Compare Davis County to another location·View the Utah accessory structures overview
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