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Homes with Casitas & Guest Houses in Mona, Utah
Mona sits at the south end of Utah County, tucked between the Sheep Rock foothills and the West Hills, with Mona Reservoir and the Mt. Nebo Loop right out the back door. Lot sizes here run bigger than what you'll see up north in Saratoga Springs or Lehi — half-acre to five-acre parcels are common, with plenty of horse property and ag-zoned land mixed in. That space is exactly why detached casitas, mother-in-law cottages, and full guest houses make sense in Mona: there's room to build them, county setbacks are workable on larger lots, and Juab County's accessory dwelling rules tend to be more permissive than what Utah County buyers run into closer to the Point of the Mountain.
Buyers shopping Mona for a property with a second living space are usually solving a specific problem: aging parents who want their own kitchen, adult kids saving for a down payment, a remote-work studio, or rental income to offset the commute up I-15 to Provo or Spanish Fork. A few listings also include converted barns or shop apartments, which fit Mona's rural character well. Prices typically run a notch below comparable Nephi or Santaquin properties, and the under-30-minute drive to Provo keeps Mona realistic for commuters. Inventory with a true secondary dwelling is thin — usually a handful at any given time — so it pays to check often. Browse the active listings below to see what's currently on the market.
May 2026 · Mona market
Live from the Utah MLS — what's actually happening in Mona right now.
Median sale
$495,000
3 closed in May 2026
Median DOM
25 days
listing → contract
Sale-to-list
100.2%
of final list price
Unsold inventory
5
active + pending
1 matching · page 1 of 1
Active listings
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Common questions
About homes with casitas & guest houses in Mona.
What's the difference between a casita and a guest house in Mona listings? ▾
Agents in Juab County use the terms loosely, but generally a casita is a smaller attached or semi-attached suite with its own entrance, while a guest house is a fully detached structure with a kitchen, bath, and bedroom. A few Mona listings also market shop apartments or converted barn lofts under the same heading, so read the remarks carefully.
Does Juab County allow accessory dwelling units in Mona? ▾
Yes, Juab County permits ADUs and detached guest dwellings on most residential and agricultural-zoned parcels, with size and setback rules that depend on lot size. Mona City has its own overlay for properties inside city limits, so confirm with the Juab County Planning office or Mona City before assuming you can add one to a property that doesn't already have it.
Can I rent out the casita on Airbnb or as a long-term rental? ▾
Long-term rentals are generally allowed on properties with a permitted secondary dwelling. Short-term rental rules are tighter and vary by whether the home is in Mona City limits or unincorporated Juab County. Verify the specific property's status before counting on rental income.
How many Mona homes with a guest house are usually for sale? ▾
Inventory is limited — typically two to six active listings at a time across Mona and the surrounding Juab County area. If nothing matches today, it's worth setting up a saved search since new listings move quickly when they hit the MLS.
Are these properties usually on well and septic? ▾
Most acreage properties in Mona run on private well and septic rather than city utilities, especially outside the small Mona City core. A second dwelling typically requires either a separate septic system or a verified expansion of the existing one, which is something to confirm during your inspection period.
What's the commute like from Mona to Provo or Spanish Fork? ▾
Mona sits about 25 minutes south of Spanish Fork and 35 minutes from Provo via I-15. It's a straight shot, and traffic is lighter than what northern Utah County commuters deal with, which is part of why Mona has held appeal for multi-generational households who want acreage without giving up job access.