General Contractor in Kaysville, Utah

Section 17-31-3 of the Kaysville City Code, readopted in full by Ordinance 26-09-04 on September 17, 2026, sets these definitions and standards, in its own order.

• A detached ADU on the same lot or parcel as the single-family detached home but neither attached to nor within it, or an internal ADU created within the home's footprint
• ADUs as an accessory use to a legal conforming single-family detached dwelling on one lot or parcel, in every primarily residential zone, in compliance with the applicable building, health, and fire codes
• No more than one ADU, internal or detached, on a lot or parcel
• The owner living in the home or the ADU as a primary residence, with an occupancy affidavit submitted with the application
• Occupancy of the ADU limited to a single family as Section 17-2-2 defines it
• The home's address, with Unit B added for the ADU
• A valid ADU permit and a city rental license before the unit is made available to tenants
• Replacement of spaces displaced by an ADU, such as those in a converted garage or carport, and the required parking paved in asphalt or concrete and never in tandem with the home's spaces
• No separate utility meters, and no ADU on a property with a failing septic tank
• An internal ADU that keeps the home's appearance as a single-family dwelling, on a lot larger than 6,000 square feet, with at least one off-street parking space, and never rented for less than 30 consecutive days
• A detached ADU on a lot or parcel of 11,000 square feet or larger containing a single-family detached dwelling that is a permitted use there; a legally existing accessory structure on a qualifying property convertible to one under the section and the building, health, and fire codes; and a design consistent with the house
• A detached ADU no larger than half the footprint of the home, garage included, or 1,200 square feet, whichever is smaller, with a two-story unit over a garage measured by its livable area alone, and never in a front yard
• The home's side and rear setbacks for a single-story detached ADU, and for a two-story one, the home's rear setback on both the rear and the sides
• A height no greater than the home's or 25 feet, whichever is less, measured to the roof peak
• At least one off-street parking space for a detached ADU of 650 square feet or less, and two for a larger one
• Ground-level decks, patios, and other outdoor living space built to the building, health, and fire codes, and a second-story deck or balcony only on a facade facing an interior yard, no wider than half that facade, and counted toward the unit's maximum square footage
• No detached ADU in a public utility easement or other recorded easement, or where a utility system improvement it must connect to lacks the capacity to serve it
• A detached ADU never rented for less than 90 consecutive days
• No recreational vehicle, travel trailer, trailer, mobile home, or other temporary structure as a detached ADU

Utah's ADU statutes apply in Kaysville as well, as our ADU page explains.

Sources: Kaysville, Ordinance 26-09-04; Notice of Ordinance Adoption; City Council Minutes, September 17, 2026; Utah Code 10-21-304; Utah Code 10-21-101. We confirm the lot size, setbacks, and parking for your ADU with the city during preconstruction.