Salt Lake County · Service area
South Jordan's own minimum lot is larger than the state's — so the state threshold is what changes here.
Allowed, but a high lot bar The state threshold is lower.
Takes about 3 minutes. No email required to see your result.
South Jordan already has an ADU ordinance, so it isn't scrambling to write one. But its 14,520 sq ft minimum lot sits well above the statute's 11,000 sq ft line, which is precisely the kind of local barrier § 10-21-304 is written to override on qualifying parcels.
“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 | South Jordan — South Jordan City Code |
|---|---|
| City minimum lot | 14,520 sq ft under existing city code — above the state's 11,000 sq ft threshold. confirm with city |
| Owner occupancy | Required. confirm with city |
| Doors | Exterior doors to the ADU visible from the street are prohibited. confirm with city |
| Utilities & address | Separate meters, mailboxes and addresses are not allowed. confirm with city |
| Minimum tenancy | 30 calendar days or more — no short-term rental. confirm with city |
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 South Jordan 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.
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Plans that fit a South Jordan backyard
Permitting queues in South Jordan will not get shorter after October 1.