Homes with mother in law suites — St. George, UT
Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
About this service
These homes include a dedicated living area for family members, often equipped with a private bathroom or small kitchenette. You need this if you want to keep family close while respecting everyone’s need for personal space. The cost of adding this to your home is typically driven by your plumbing needs, electrical requirements, and the scale of the interior renovation. Exact pricing confirmed free on the call.
Frequently asked in St. George
What are the requirements for building an accessory dwelling unit in St. George?
Can I rent out my accessory dwelling unit in St. George?
What's involved in getting an ADU permit in St. George?
Are detached accessory dwelling units common in St. George?
What is the typical ADU building process in St. George?
What does 'accessory dwelling unit' mean in the context of St. George zoning?
What kind of ADU construction services are available in St. George?
Also serving nearby: North Las Vegas · Henderson · Las Vegas · Peoria · Provo
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of St. George — population 104,578; about 1,355 residents per square mile across 77.1 sq mi.
Neighborhoods served in St. George: Bloomington, Washington Fields, Green Valley, Little Valley, Dixie Downs — and every surrounding area.
Areas we serve
Browse by state, then city.