Salt Lake County · Service area

Can you build a backyard home in South Jordan?

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.

What changed here on October 1

South Jordan's own minimum lot is larger than the state's — so the state threshold is what changes here.

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

South Jordan ADU rules at a glance

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 still bringing this into line with the law that took effect 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

If your South Jordan parcel is between 11,000 and 14,520 sq ft, October 1 is the date that matters to you. Daybreak lots are frequently below both lines.

Is my South Jordan lot 11,000 sq ft?

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.

Quoted on your South Jordan lot

Eight plans, from The Lookout at 784 sq ft to The Launchpad at 3,061 sq ft. A plan that is one component stack shows that price. The others say request a quote.

ADU calculator → · How the price works →

Can you build a backyard home in South Jordan?

South Jordan's own minimum lot is larger than the state's — so the state threshold is what changes here.

South Jordan ADU rules at a glance

If your South Jordan parcel is between 11,000 and 14,520 sq ft, October 1 is the date that matters to you. Daybreak lots are frequently below both lines.

Is my South Jordan lot 11,000 sq ft?

Quoted on your South Jordan lot

Three places to start

The Lookout

The Encore

The Loft

There's still $2,200 a month hiding in your house.