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Homes with Casitas & Guest Houses in Highland, Utah
Highland sits on the bench between Alpine and Lehi, with larger lots than most of Utah County and a zoning history that has long favored estate-style properties. That combination is why casitas and detached guest houses turn up here more often than in tighter Wasatch Front cities. Whether it's a mother-in-law suite above a four-car garage in one of the newer Highland Oaks builds, or a freestanding casita on a half-acre lot off SR-92, the extra living space tends to come with real square footage rather than a glorified bonus room. Buyers usually fall into two camps: multi-generational families wanting aging parents close but separate, and remote-work households who need a fully detached home office or studio.
The trade-off worth understanding upfront is Highland's ADU ordinance. The city allows accessory dwellings under specific conditions — owner-occupancy of the main home, setback and size limits, and short-term rental restrictions that effectively rule out Airbnb use. Highland also sits inside the Alpine School District (with Lone Peak High pulling strong test scores), keeps a quiet small-town feel despite the Silicon Slopes job growth ten minutes south, and benefits from quick access to American Fork Canyon for hiking and skiing at Sundance. Pricing on homes with a casita or guest house typically runs $100K to $300K above comparable single-residence listings, depending on whether the second unit is permitted and finished out with a full kitchen. Browse the active listings below to see what's currently on the market.
June 2026 · Highland market
Live from the Utah MLS — what's actually happening in Highland right now.
Median sale
$1,000,000
13 closed in June 2026
Median DOM
5 days
listing → contract
Sale-to-list
98.4%
of final list price
Unsold inventory
77
active + pending
3 matching · page 1 of 1
Active listings
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Common questions
About homes with casitas & guest houses in Highland.
Does Highland City allow casitas and detached guest houses? ▾
Yes, but detached accessory dwellings are tied to lot size and zoning — most legal casitas sit on R-1-40 (roughly one-acre) parcels with specific setback requirements. Internal ADUs are allowed more broadly. Always pull the permit history with Highland City before closing, since some guest houses were built as unpermitted additions.
Can I rent out a guest house in Highland on Airbnb? ▾
Short-term rentals are heavily restricted in Highland and most detached ADUs are approved only for family use, not nightly rentals. Long-term rentals may be allowed with owner-occupancy of the main home. Confirm current rules directly with Highland City Planning before counting on rental income.
What's the price premium for a Highland home with a casita? ▾
Expect roughly $80,000 to $150,000 over a comparable home without one, though high-end finishes, full kitchens, and separate utilities can push that higher. Homes in the $1.2M–$2M range on larger Highland Oaks lots are where most permitted guest houses show up.
Are these typically attached mother-in-law suites or fully detached buildings? ▾
Both exist on the Highland MLS. Attached suites with private entrances are more common in newer builds from the 2010s onward, while fully detached casitas tend to appear on the older acre lots closer to the Lone Peak foothills. Listing photos and floor plans usually make the distinction clear.
Do guest houses in Highland have separate utilities? ▾
It varies. Many older detached units share water and gas with the main home, while newer permitted builds often have separate electrical sub-panels and sometimes their own gas meter. Separate utilities matter if you plan to rent long-term or want clean accounting for a home office.
Why are casitas more common in Highland than nearby cities? ▾
Highland's larger minimum lot sizes — particularly in the R-1-40 zone east of the freeway — leave room for a second structure without crowding the property. Cities like Pleasant Grove and Lehi have far more quarter-acre lots where a detached casita just won't fit within setbacks.