Accessory dwelling unit cost — Salt Lake City, UT

Looking for accessory dwelling unit cost in Salt Lake City, UT? Call AccessoryDwellingUnit Experts for a contact a provider — no obligation. Licensed adu builders serve Salt Lake City and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.

About this service

The investment required for an ADU depends on your site conditions, the complexity of the design, and the materials selected for the interior. Larger units with custom features naturally shift the price higher compared to standard, compact models. Exact pricing confirmed free on the call.

Frequently asked in Salt Lake City

How much does an ADU cost in Utah?

What are the rules for ADUs in Utah?

While Utah encourages ADUs, local city ordinances in Salt Lake City will specify the exact requirements. These rules often address lot coverage, setback distances from property lines, and parking regulations. Understanding these local nuances is critical for a compliant build.

Is an ADU allowed in Utah?

Yes, ADUs are permitted in many Utah cities, including Salt Lake City, though specific regulations apply. Cities will have their own zoning codes detailing size limitations, placement, and other building standards. Always consult with local authorities or a professional for compliance details.

This particular grant is not applicable to projects in Utah. It's advisable to research current local incentives or programs that may be available for ADU development in Salt Lake City.

What are the rules for ADU in California?

California has state-mandated ADU laws designed to simplify the building process, but local cities still have their own zoning codes. These often cover aspects like setbacks, height limits, and lot coverage. Working with local experts ensures your ADU meets all necessary standards.

What are the disadvantages of ADUs?

Also serving nearby: West Valley City · West Jordan · Sandy · Lehi · Orem

All cities in Utah →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

209,593residents

1,890per sq mile

8ZIP codes served

Serving all of Salt Lake City — population 209,593; about 1,890 residents per square mile across 110.9 sq mi. ZIP codes covered include 84101, 84102, 84103, 84104, 84105, 84106, 84107, 84108.

Neighborhoods served in Salt Lake City: Downtown Salt Lake City, Sugar House, The Avenues, Holladay — and every surrounding area.