12,000 down to 11,000
The state ceiling is lower than Vineyard's published figure, so lots between 11,000 and 12,000 sq ft are the newly qualifying group.
Vineyard, Utah County
Detached ADUs in Vineyard, and a lot-size change.
Vineyard's published ADU rule asked for a detached unit lot of at least 12,000 square feet. State law now sets 11,000 square feet as the ceiling. Deseret News reports Vineyard among the cities that adopted compliant rules, so confirm the current text with the city.
Reported adopted, confirm with the city
What we confirmed for Vineyard
Source: Vineyard City ADU guidance; Deseret News, October 14, 2026; Utah Code 10-21-304.
- Published rule
- Detached unit on a lot of at least 12,000 sq ft (VZC 15.34.060)
- State ceiling
- A city cannot require more than 11,000 sq ft for a detached ADU
- Reported
- Deseret News lists Vineyard among cities adopting compliant ordinances
- Permits
- No conditional use permit in a primarily residential zone
- Parking
- 1 space under 650 sq ft, 2 at 650 sq ft or more, at most
- Status
- We could not confirm the adopted text
Not confirmed: The adopted lot-size wording, size caps, setbacks and parking. We saw the older 12,000 sq ft figure on the city's pages, so confirm what is current.
About Vineyard
A lakeshore city built on the old steel mill.
Vineyard sits on the Utah Lake shoreline between Orem and Lindon, on land that was once part of the Geneva Steel site. It is one of the newest and fastest-changing cities in Utah County, with new neighborhoods, a FrontRunner commuter-rail station and a town center under development.
That newness shapes the ADU question. Many Vineyard lots are in master-planned subdivisions with smaller lots and HOA rules, so the first filter is lot size: the city's published rule asked for 12,000 square feet, the state ceiling is 11,000, and the lots between those two numbers are the ones this change brings in. Check your covenants as well as the city's code.
What it means for you
What this means for a Vineyard homeowner.
Master-planned neighborhoods
Newer subdivisions often have HOAs and design guidelines that apply on top of the city's rules.
Check the code section
Ask Vineyard for the current text of its ADU code (VZC 15.34.060 in the version we saw) before you design.
We will verify for you
Send your address and we will check lot size and the city's rules.
Plans that fit Vineyard
Small plans for smaller newer lots.
Vineyard lots near the 11,000 to 12,000 square foot threshold leave limited room. Cabana 300 and Mysa 300 are narrow 12 foot wide plans. Cabana 400 and Mysa 400 are one-bedroom plans under 400 square feet, and Skyview 400 adds a loft and an integrated deck on a 13 by 33 foot footprint.
Final fit depends on your lot, utilities, the delivery route and Vineyard's current standards. We confirm all of it in a lot review.
Newer lots, tight setbacks and HOA review.
In newer subdivisions the lot may be compact, with the house set toward the street and little side-yard clearance for a crane. Utilities are often nearby, but HOA architectural review can add a step and some covenants limit accessory buildings. We check access, utility locations and your covenants in a lot review before you commit.
How to plan the full budgetGetting it built in Vineyard
From a Vineyard lot to move-in.
- Measure the lot. Confirm whether it clears 11,000 square feet.
- Read your covenants. Check the HOA's design and accessory building rules.
- Choose a plan. Stay compact.
- Vineyard review. We prepare the plan set and site plan for planning and building review.
- Site work, set and finish. Foundation and utilities, crane day, then finish work.
Questions
Vineyard ADU questions, answered.
What lot size does Vineyard require?
The city's published ADU guidance listed a detached unit on a lot of at least 12,000 square feet. State law says a covered city cannot require more than 11,000. Confirm the current figure with the city.
Has Vineyard adopted a new ordinance?
Deseret News lists Vineyard among cities adopting ordinances that comply with the state law, but we could not confirm the adopted text. Ask Vineyard Planning.
Do HOA rules apply in Vineyard?
Possibly. City rules and HOA covenants are separate. Read your CC&Rs and ask your HOA before you plan.
How much parking does an ADU need?
State law caps it at one space under 650 square feet and two at 650 square feet or more.
Can I rent it?
State law lets a city require rentals of at least 90 consecutive days and require owner occupancy.
General information, not legal advice. Cities can amend their ordinances, so confirm current rules with Vineyard before you design or buy.
Nearby
Compare nearby cities.
Neighbors around the north end of the lake:
Own a lot in Vineyard?
Send us your address. We will check lot size, your HOA and the city's current text, then tell you honestly whether a detached ADU fits.