Newly required
Even before final local rules, state law requires covered cities to allow qualifying detached ADUs.
Taylorsville, Utah
Taylorsville is adding detached ADUs to its code.
Taylorsville's code covered internal ADUs and guesthouses. The city has been drafting an ordinance to add detached ADUs as SB 284 requires, with a Planning Commission hearing on September 22 and council discussion in October.
In progress, formal council action expected after October 21, 2026
What we confirmed for Taylorsville
Source: Taylorsville City Council minutes, October 7, 2026; Utah Code 10-21-304.
- Before
- The city code covered internal ADUs and guesthouses
- State requirement
- Allow detached units on lots of 11,000 sq ft or more with a single-family home
- Conversions
- A process is required to convert legally built garages, sheds and barns
- Permits
- The state bars conditional use permits and limits parking and conflicting design standards
- Cost warning
- City staff said utility connections can run 50 to 70 percent of the cost of a detached unit
- Status
- Council briefed October 7, 2026; formal presentation planned October 21
Not confirmed: Whether the council has adopted the ordinance and its final standards. We have not confirmed adoption. Ask Taylorsville Planning for the current status.
What it means for you
What changes for Taylorsville homeowners.
Budget the utilities
Taylorsville staff warned that utility hookups can be half or more of the total cost, so plan them early.
Rental rules differ
Staff noted the state treats short-term rentals differently for internal and detached units: under 30 days versus under 90 days.
Plans that fit
Compact floor plans for a Taylorsville backyard.
Small plans are easier to fit inside setbacks and cap parking at one space under 650 square feet. Open any plan for photos and the floor plan.
Final fit depends on your lot, utilities, the delivery route and the city's current standards. We confirm all of it in a lot review.
How it works here
From your lot to move-in.
- Lot review. We check lot size, setbacks, utilities and the delivery route to your backyard.
- Choose a plan and finishes. Pick a floor plan and one of four finish series.
- City review. We help you prepare the plans and site information Taylorsville will want for approval and the building permit.
- Foundation and utilities. Site work happens on your lot while the home is built in the factory.
- Delivery and set. The home arrives by truck and is set by crane, then finished, connected and walked through with you.
Questions
Taylorsville ADU questions.
How much do utilities add to a detached ADU?
Taylorsville staff told the council that utility connection costs could run from 50 to 70 percent of the cost of a detached unit. It varies a lot by lot, depending on how far sewer, water and power are from the new unit. We price the site work line by line before you commit.
Does SB 284 apply to Taylorsville?
Yes. Taylorsville is covered by the state mandate, which requires a covered city to allow a detached ADU on a lot of 11,000 square feet or more that has a single-family home, as a permitted use. Cities can still set size, height, setback, owner-occupancy and rental rules within the limits of the law. Read the SB 284 guide.
How much parking does a detached ADU need?
A city cannot require more than one on-site space for a detached ADU under 650 square feet, or more than two for a unit of 650 square feet or larger.
Can I rent it out?
The state allows a city to require rentals of at least 90 consecutive days and to require the owner to live on the property. Check how Taylorsville applies those rules to your lot.
What if my lot is smaller than 11,000 square feet?
The state mandate does not reach it, but a city may choose to allow smaller lots. Ask Taylorsville Planning what applies to your parcel.
Does Stoneward work in Taylorsville?
Yes. Stoneward is based in American Fork and serves Salt Lake County and the rest of the Wasatch Front. We run a lot review first and tell you plainly if a detached ADU does not fit.
General information, not legal advice. Cities can amend their ordinances, so confirm current rules with Taylorsville before you design or buy.
Own a lot in Taylorsville?
Send us your address. We will check the lot against Taylorsville's rules and tell you honestly whether a detached ADU fits.