
Hope Custom Building
Hope Custom Building. General contractor. Closed · Opens 8 AM Mon
Looking for the best custom ADU builders in Salt Lake City, Utah? Our directory features 7 vetted custom adu builders serving the Salt Lake City area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.

Hope Custom Building. General contractor. Closed · Opens 8 AM Mon

Nomad Builders. Construction company. 47 S Orange St Suite E-3, Salt Lake City, UT 84116, United States

Woodside Homes of Utah. Home builder. 460 W 50 N Ste 300, Salt Lake City, UT 84101, United States

Modal Living. Home builder. Closed · Opens 9 AM Mon

Built By Design Construction. Home builder. 331 S Rio Grande St #305, Salt Lake City, UT 84101, United States

Halo Homes. Custom home builder. Closed · Opens 7 AM Mon

United Custom Homes. Custom home builder. 1414 S Main St, Salt Lake City, UT 84115
Salt Lake City is one of the top markets for accessory dwelling units in Utah. With growing demand for affordable housing, ADU construction in Salt Lake City offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of custom adu builders in Salt Lake City helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
ADU construction costs in Salt Lake City typically range from $150,000 to $350,000 depending on size, design, and finishes. Garage conversions are generally less expensive ($80,000–$150,000), while custom-built detached ADUs can cost more. Get free quotes from our listed custom adu builders to compare prices.
Yes, ADU construction in Salt Lake City requires building permits. Utah has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
ADU construction timelines in Salt Lake City typically range from 4–12 months, depending on the project type. Prefab ADUs can be installed in 2–4 months, while custom builds may take 8–12 months including design and permitting.