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Homes with Casitas & Guest Houses in Dammeron Valley, Utah
Dammeron Valley sits about 20 minutes northwest of St. George off Highway 18, tucked between Veyo and the Diamond Valley area at roughly 4,700 feet elevation. That extra elevation over St. George means summer evenings actually cool off, which is one reason so many buyers here want a casita or detached guest house — it's a comfortable spot for aging parents, adult kids, or long-term visitors without everyone sharing one roofline. Lots in Dammeron Valley tend to run large, often half an acre to several acres, with horse privileges in parts of the valley, so there's room to build or buy a property where the guest house sits far enough from the main home to feel private rather than tacked-on.
Because Dammeron Valley is unincorporated and governed by Washington County zoning rather than city code, casita and accessory dwelling rules are generally more permissive than what you'd find inside St. George or Ivins city limits — worth confirming with the county before you buy if a rental income unit is part of your plan. Many of these properties were custom-built, so guest houses vary widely: some are simple studio casitas over a garage, others are full one- or two-bedroom homes with their own kitchens and entrances, ideal for multigenerational households or a home office separate from the main house. Buyers moving from out of state for family reasons drive a lot of this demand. Browse the active listings below to see what's currently on the market.
July 2026 · Dammeron Valley market
Live from the Utah MLS — what's actually happening in Dammeron Valley right now.
Median sale
$1,250,000
1 closed in July 2026
Median DOM
18 days
listing → contract
Sale-to-list
96.2%
of final list price
Unsold inventory
11
active + pending
1 matching · page 1 of 1
Active listings
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Common questions
About homes with casitas & guest houses in Dammeron Valley.
Are casitas and guest houses common in Dammeron Valley? ▾
More common here than in most Washington County communities. Dammeron Valley sits on larger acre-plus lots with agricultural-residential zoning, so detached guest quarters, mother-in-law suites, and converted barns/shops with living space show up regularly. Many were built by original owners who wanted space for visiting family escaping winter elsewhere.
Can a casita in Dammeron Valley be legally rented out? ▾
Washington County's zoning for Dammeron Valley generally allows accessory dwelling units, but short-term rental rules are stricter than in St. George proper. Long-term rentals of a casita are typically fine; nightly rentals usually are not. Always verify the current ordinance and any HOA covenants on the specific parcel before counting on rental income.
How does the elevation affect guest house use here? ▾
Dammeron Valley sits around 4,400-4,600 feet, roughly 1,500 feet higher than St. George. Summers run 10-15 degrees cooler and winters see occasional snow, so casitas here function as comfortable year-round space rather than the summer-unusable outbuildings you sometimes see down in the valley.
What's the price difference between a home with a casita versus without? ▾
In Dammeron Valley, a detached guest house typically adds $80,000-$200,000 to comparable sales depending on size, finish level, and whether it has a full kitchen. Properties with permitted, separately-metered casitas on flat usable acreage sit at the top of that range.
Do these properties usually have separate utilities for the guest house? ▾
It varies. Homes built or remodeled in the last 10-15 years often have separate electric meters and dedicated septic capacity for the casita. Older properties may share systems, which matters if you plan to rent the unit or want privacy between meters. Ask for utility records during due diligence.
Is water a concern for properties with two dwellings? ▾
Dammeron Valley relies on the Dammeron Valley Water Special Service District, and water shares are tied to the lot. Two living units on one parcel don't usually require additional shares, but irrigation for larger landscaped lots is a real cost consideration. Confirm the water allotment and any culinary/secondary setup before writing an offer.