ADU-1G | 650 sq. ft.

Single Bedroom Above Garage ADU in Utah

ADU-1G is a detached Garage/ADU apartment with 650 sq. ft. of living space on a 25ft x 30ft footprint. The ADU-1G is one-bedroom, one full bathroom with an open living, dining and kitchen area built on top a spacious two-car garage. This creates a secondary living space without compromising covered parking for you and your family.

When this ADU is built in Utah, based on a $150/sq. ft. building cost for the living area and $70/sq. ft. for the garage area, the price of the ADU-1G building is estimated to be $143,000. Site preparation and utility connections to your existing home are a separate cost.  

Clearing the site, excavation for footings and foundation, landscaping, along with utility connections of power, sewer, water, and electricity to the existing home are estimated after an onsite inspection and review of the property is made. As a guide, installation costs run approximately $15,000 – $20,000.

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For more information, download the brochure that is filled with many more details.


  • 650 sq. ft. living space
  • 25ft x 30ft dimension
  • Large bedroom
  • Full bathroom
  • Open kitchen, dining, and living area
  • Two car garage
  • Covered patio
  • Central heat/AC
  • Full construction plans available*

* ADU Utah’s ADU-1G construction plans are a complete set of documents and engineered-design plans required for a building permit application with your city located in Salt Lake, Davis, Weber, Utah or Summit counties. Contact us for more information.