Davis County · about 6,000

West Bountiful

Detached permitted on 11,000 sf lots

Ordinance 515-26, adopted September 15, 2026 and posted the next day, replaced the internal-only chapter. A detached unit is a permitted use after an ADU permit, on a lot of at least 11,000 square feet in a single-family zone. The older webpage that says detached units are not allowed is out of date.

Internal ADU

Permitted with an ADU permit. No separate meters. One extra paved stall. A new entrance faces the side or rear, not the street. Both units cannot be rented at once.

Detached ADU

Permitted on a lot of 11,000 square feet or larger. Not in the front yard. Gross floor area, including any garage or workshop in the same building, may not exceed 50% of the primary footprint or 1,000 square feet, whichever is less. Minimum 201 square feet. One ADU per lot.

Lot

11,000 square feet in the single-family zones. The state allows a lower minimum; West Bountiful did not take it.

Size

The lesser of 50% of the primary dwelling’s footprint or 1,000 square feet. Garage, workshop, and storage inside the same building count. Height follows the main-structure limit of the zone.

Parking

One additional stall if the unit is smaller than 650 square feet; two if it is larger. Replace any garage or carport stall the unit takes. Gravel is allowed. Stalls outside a garage are paved in concrete, masonry, asphalt, or pavers.

Owner occupancy

The owner lives in the house or the detached unit, with up to three years away for business, medical, military, or religious service, and an on-site manager during that absence. A recorded ADU agreement runs with the land. A new owner must reapply and move in, or the unit is vacated.

Rental

The application is an agreement that neither the house nor the ADU will be a short-term rental, as state code defines that term. A lease must say it ends when the property is sold.

Design

In the A-1 and R-1-22 zones: 30-foot rear, 10-foot side, 20-foot street side, and 8 feet from the house. In R-1-10: 20-foot rear, 10-foot side, 20-foot street side, and 8 feet from the house. No septic system for the unit. Address it as unit B.