Davis County · Service area
Bountiful has an ADU ordinance already — the detached rules are what's moving.
Being amended now The state floor is what you can rely on today.
Takes about 3 minutes. No email required to see your result.
Bountiful is among the Davis County cities that adopted an ADU ordinance, and it clears the population threshold, so § 10-21-304 applies. The detached provisions are what must be brought into line by October 1.
“A specified municipality shall adopt a land use regulation that permits a detached accessory dwelling unit on any lot or parcel that is 11,000 square feet or larger…” — S.B. 284, Enrolled Copy, Utah Code § 10-21-304, effective October 1, 2026.
The numbers that decide your project
| Rule | Bountiful — Bountiful City Code — confirm current version |
|---|---|
| Status | ADU ordinance adopted; detached provisions being aligned with § 10-21-304 before October 1. moving now |
| State floor from Oct 1 | Detached ADU permitted on lots ≥ 11,000 sq ft; no conditional use permit in a primarily residential zone. state law |
| Size ceiling | A city may bar an ADU larger than the main house. state law |
| Owner occupancy | A city may require the owner to reside in the house or the ADU. state law |
state law Quoted from the enrolled copy of S.B. 284 — primary source, verified.
confirm with city From the city's published ADU material or council reporting — Arena confirms at the planning counter before design.
moving now The city is actively amending this ahead of October 1, 2026. Treat as a moving target.
We would rather show you the gap than guess. Arena is a builder, not a law firm — confirm your parcel with Bountiful before you sign anything.
What that means on your lot
That single number decides whether the new state law applies to you. Enter your address above — we'll tell you which rule you fall under and which plans fit, in about three minutes.
Arena publishes every price — seven plans from The Lookout at 735 sq ft to The Launchpad at 2,541 sq ft. One team owns design, engineering, permitting and construction.
From $128,625 · see every price →
Plans that fit a Bountiful backyard
Permitting queues in Bountiful will not get shorter after October 1.