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Homes with Casitas & Guest Houses in Tooele, Utah
Tooele sits about 35 minutes west of Salt Lake City over the Oquirrh Mountains, and the lot sizes here are part of why casita and guest house properties show up more often than they do in tighter Wasatch Front markets. Older neighborhoods around Vine Street and the historic downtown grid often have detached outbuildings that owners have converted into mother-in-law units, while newer builds in Stansbury Park, Erda, and Lake Point sit on half-acre to multi-acre parcels with room for a true secondary dwelling. Buyers come here for that extra space — multigenerational families housing grandparents, remote workers needing a separate office, or owners who want short-term rental income to offset a mortgage that runs roughly $450K–$700K for this kind of setup.
Zoning is the piece that catches people off guard. Tooele City, Tooele County, and the individual townships (Stansbury, Erda, Grantsville) each handle accessory dwelling units differently, and whether a casita can have a full kitchen, be rented separately, or count as legal square footage depends on the parcel's zoning and when the structure was permitted. Some listings advertise "guest house" when the unit is actually an unpermitted conversion, so verification matters. Water rights are another wrinkle on larger Erda and Grantsville lots — a second dwelling sometimes requires additional culinary connection fees. The listings below include both attached casitas and fully detached guest houses across Tooele Valley; browse what's currently active to see which configurations and zoning situations match what you need.
May 2026 · Tooele market
Live from the Utah MLS — what's actually happening in Tooele right now.
Median sale
$420,000
71 closed in May 2026
Median DOM
31 days
listing → contract
Sale-to-list
98.7%
of final list price
Unsold inventory
203
active + pending
3 matching · page 1 of 1
Active listings
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Common questions
About homes with casitas & guest houses in Tooele.
What's the difference between a casita and a guest house in Tooele listings? ▾
Agents use the terms loosely, but generally a casita is an attached or semi-attached suite with its own entrance, while a guest house is a fully detached structure with its own roof and often its own utilities. In Tooele, detached guest houses are more common on the larger Erda and Grantsville parcels, and attached casitas show up more in Stansbury Park and newer Tooele City subdivisions.
Can I legally rent out the casita or guest house as a separate unit? ▾
It depends on the jurisdiction and the unit's permit history. Tooele City allows internal accessory dwelling units in most residential zones with registration, but detached ADUs and short-term rentals have additional rules. Tooele County and Grantsville have their own ordinances, so always confirm the unit is permitted and that the zoning allows the rental type you're planning before closing.
Do guest houses count toward the home's square footage and appraised value? ▾
Permitted, conditioned secondary dwellings typically appraise as additional living area or as a separate ADU contribution to value, depending on the appraiser's approach. Unpermitted conversions usually don't, which can affect financing — lenders sometimes require the unit to be either permitted or excluded from the appraisal. Ask for permit records during due diligence.
How does water service work for a second dwelling on Erda or Grantsville acreage? ▾
Larger lots outside Tooele City limits often rely on shared culinary systems or private wells, and adding a second living unit can trigger an additional connection fee or require proof of adequate water rights. Some Erda properties include secondary irrigation shares as well. The seller's disclosures and the local water company should confirm what conveys.
What price range should I expect for a Tooele home with a true guest house? ▾
Most active listings with a functional secondary dwelling fall in the $500K–$800K range, with custom Erda and Stansbury lakefront properties pushing higher. A modest casita on a standard Tooele City lot can come in under $500K, while detached guest houses on multi-acre parcels with shop space often clear $700K.
Are these properties a good fit for multigenerational living? ▾
Yes — that's one of the most common buyer profiles in Tooele Valley for this type of property. The combination of larger lots, lower price per square foot than Salt Lake County, and a reasonable commute to SLC makes it workable for families housing aging parents or adult children while keeping separate living quarters.