Looking for accessory dwelling unit construction cost in Salt Lake City, UT? Call AccessoryDwellingUnit Direct 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 involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.

About this service

The amount you spend depends on the size of the unit, whether you are building from scratch or converting an existing structure, and the quality of your finish materials. Foundations, utility connections, and local labor rates also play a significant role. We provide exact pricing confirmed free on the call.

Frequently asked in Salt Lake City

What are the disadvantages of ADUs in Salt Lake City?

Potential disadvantages could include the initial construction costs and the impact on your existing yard space. You might also consider the added utility costs and the complexities of zoning regulations in different Salt Lake City neighborhoods. A local pro can help you assess these factors.

How much does an ADU cost in Salt Lake City?

What are the rules for ADUs in Utah?

Utah has statewide ADU legislation that encourages their development, and Salt Lake City has specific ordinances that align with these goals. These regulations cover aspects like minimum lot sizes, setbacks, and parking requirements. Local experts are well-versed in Salt Lake City's specific rules.

Is an ADU allowed in Salt Lake City?

This program is not applicable in Utah. Inquire about any current incentives or financing options available for ADUs in Salt Lake City when you call.

What are the benefits of adding an ADU in Salt Lake City?

Benefits include generating rental income, providing housing for family members, and increasing your property's overall value. An ADU can also offer a flexible space for guests or a private home office. These advantages make an ADU a sound investment for homeowners in Salt Lake City.

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: Sugar House, The Avenues, Capitol Hill, Downtown Salt Lake City, Liberty Wells, East Bench — and every surrounding area.