Accessory Structures in Davis County, UT (2026)
3 rules for unincorporated Davis County, Utah.
Verified from official government sources
ADU Rules
Utah law makes an internal accessory dwelling unit a permitted use in residential zones. Layton, Bountiful, and other Davis County cities must allow one internal ADU inside an owner-occupied single-family home; detached ADUs stay under local zoning.
ADU Rules in Davis County, Utah
Some RestrictionsUtah Code §10-9a-530
the use of an internal accessory dwelling unit is a permitted use
Shed & Carport Rules
Davis County Code Section 15.20.130 caps how big an accessory building can get and where it can sit. A shed, barn or garage cannot cover more than 25 percent of the required rear yard or exceed 1,000 square feet total, and a farm shed or barn needs 3 feet of side and rear clearance and 60 feet from the street or a neighbor's house.
Shed and Accessory Building Rules in Davis County
Some RestrictionsDavis County Code § 15.20.130 (Agriculture Accessory Buildings; Lot Coverage of Accessory Buildings)
Agriculture Accessory Buildings. No hay barn, silo, equipment shed or storage building may be located closer than three (3) feet to any side or rear lot line and sixty (60) feet to any public street or dwelling on an adjacent property; provided, that greenhouses or other shelters used in connection with the growing of ornamental plants and flowers may be located as provided for the location of ...
Garage Conversions
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.
Garage Conversion Rules, Davis County Utah
Some RestrictionsUtah Code §10-9a-530
The term also includes a garage if the garage is a habitable space and is connected to the primary dwelling by a common wall.
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