Homes with Casitas & Guest Houses in Eagle Mountain, Utah

They're less common here than in southern Utah, but the supply has grown as Eagle Mountain has shifted from a commuter outpost to a full-fledged city of 60,000+. Builders in Silverlake, Hidden Hollow, and parts of Overland have added detached casitas and basement mother-in-law suites to newer plans. On any given week you'll typically see a handful of active MLS listings advertising a true guest house or ADU.

Eagle Mountain permits internal accessory dwelling units in most residential zones, and detached ADUs (often marketed as casitas or guest houses) are allowed on lots that meet minimum size and setback requirements. Rules around rental use, separate utility meters, and owner-occupancy do apply, so verify the specific zone and HOA before writing an offer. The city's planning department is responsive and publishes current ADU standards online.

Multigenerational living is the biggest driver — aging parents, adult kids saving for a down payment, or extended family visiting from out of state. A smaller share of owners use the space as a home office, gym, or short-term rental, though STR rules in Eagle Mountain are stricter than in resort towns and worth checking by neighborhood.

Expect to pay roughly $75,000 to $200,000 over a comparable home without one, depending on whether the casita is a finished basement apartment or a fully detached structure with its own kitchen and laundry. Detached units on larger lots in areas like Cedar Pass Ranch carry the biggest premium because the land itself is harder to come by.

Long-term rentals of an ADU are generally allowed if the unit is permitted and meets building code, but short-term rentals (under 30 days) face tighter restrictions and may require a city license. HOAs in newer subdivisions sometimes prohibit rentals of accessory units altogether, so read the CC&Rs carefully before counting on rental income.

In Eagle Mountain the majority are walkout basement apartments with private entrances, since basements are standard on Wasatch Front builds and add square footage cheaply. Fully detached casitas exist but are concentrated on larger half-acre-plus lots in the western and southern parts of the city.