Homes with Casitas & Guest Houses in River Heights, Utah
River Heights is a small bench community of roughly 1,800 residents tucked between Logan and Providence in Cache Valley, and the lot sizes here are part of what makes casita and guest-house properties feasible. Many of the older homes along 500 East and 600 South sit on quarter-acre to half-acre parcels with detached garages, workshops, or mother-in-law setups that have been converted (or could be converted) into legal accessory dwelling units. With Utah State University five minutes away and Logan Regional Hospital just across the river, demand for separate guest quarters comes from a specific mix of buyers: multigenerational families, USU faculty hosting visiting researchers, and homeowners wanting rental income from a unit that's genuinely private rather than a basement apartment.
Climate and zoning both shape what a casita looks like here. Cache Valley winters run cold with heavy inversion, so detached units need real insulation, dedicated heat, and frost-protected plumbing — a converted summer pool house from Arizona this is not. River Heights City allows ADUs under specific conditions tied to lot size, owner-occupancy, and parking, so it's worth confirming any existing guest house is permitted before writing an offer. Price points in River Heights typically run above neighboring Hyrum and below Providence's newer benches, and homes with functional secondary living space tend to carry a meaningful premium over comparable single-unit listings. Browse the active listings below to see which River Heights properties currently include a casita, guest house, or detached ADU.
May 2026 · River Heights market
Live from the Utah MLS — what's actually happening in River Heights right now.
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Common questions
About homes with casitas & guest houses in River Heights.
Are guest houses and casitas legal as rentals in River Heights? ▾
River Heights allows accessory dwelling units under its zoning ordinance, but there are conditions around owner-occupancy of the main home, off-street parking, and minimum lot size. Short-term rentals (under 30 days) face tighter restrictions than long-term leases. Always verify the specific unit's permit history with River Heights City before assuming you can rent it out.
What's the typical price premium for a home with a casita in River Heights? ▾
Homes with a permitted, finished detached unit generally run $60,000 to $120,000 above a comparable single-family home in the same neighborhood, depending on the casita's square footage, kitchen, and separate utilities. Unpermitted conversions sell for less because lenders and appraisers won't count the second unit toward income or value.
Who typically buys casita properties in this area? ▾
The three most common buyer profiles are multigenerational families housing aging parents, USU-affiliated households (faculty, grad students, visiting scholars), and investors wanting a primary residence with rental offset. LDS families hosting returned missionaries or married college-age kids are also a steady segment in Cache Valley.
Will winter conditions affect a detached guest unit? ▾
Yes — Cache Valley sees sustained sub-freezing temperatures and inversion fog from December through February. A usable year-round casita needs its own heat source (often a mini-split or gas furnace), insulated water lines, and ideally a separate electrical panel. Units built as three-season spaces often need upgrades before they're livable in January.
How many casita or guest-house listings are usually active in River Heights? ▾
River Heights is a small market with under 50 total active listings at most times, so homes with true secondary units are limited — often just one to three at any given moment. Buyers looking specifically for this setup should also watch Providence, Logan's Island neighborhood, and Hyde Park for comparable options.
Can I finance a home with a casita using a conventional loan? ▾
Yes, if the property is zoned single-family with an ADU and the second unit is permitted, conventional and FHA loans both work. FHA even allows rental income from the ADU to count toward qualifying in some cases. Unpermitted units can complicate appraisals, so ask your lender to review the listing details before you write an offer.