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Homes with Casitas & Guest Houses in Farmington, Utah
Farmington's older neighborhoods along 100 South and the streets around Founders Park have a fair number of detached guest houses tucked behind the main residence, built back when a family compound made more sense than it does on today's smaller Davis County lots. Newer construction in the Shepard Creek and Farmington Station areas has picked up the trend too, with builders adding casitas over garages or as freestanding studios to meet demand from multigenerational families who want parents or adult kids close but not sharing a kitchen. A casita here typically runs 400 to 900 square feet, often with its own entrance, a mini-split or baseboard heat, and enough plumbing for a kitchenette and bathroom.
The appeal in Farmington is practical as much as it is lifestyle-driven. With Lagoon, the Legacy Trail, and easy I-15 access pulling in visitors and commuters alike, a guest house pencils out well as short-term rental income or as a place for aging parents who still want their own front door. Davis County's zoning allows accessory dwelling units on many single-family lots, but setback and size rules vary by subdivision, so it's worth confirming a specific property's casita is permitted and not just an unpermitted conversion. Browse the active listings below to see which Farmington properties currently have a legitimate guest house on site.
July 2026 · Farmington market
Live from the Utah MLS — what's actually happening in Farmington right now.
Median sale
$627,450
12 closed in July 2026
Median DOM
14 days
listing → contract
Sale-to-list
97.8%
of final list price
Unsold inventory
90
active + pending
2 matching · page 1 of 1
Active listings
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Common questions
About homes with casitas & guest houses in Farmington.
What's the difference between a casita, an ADU, and a guest house in Farmington listings? ▾
Agents use the terms loosely, but in Farmington a casita usually means an attached suite with its own entrance — often above the garage or off a courtyard. A guest house is typically detached, and an ADU (accessory dwelling unit) is the legal designation Davis County uses when the space has a kitchen and can be rented. Always check the city's ADU registry before assuming a unit is legal to rent.
Does Farmington allow short-term rentals in a casita or guest house? ▾
Farmington City restricts short-term rentals (under 30 days) in residential zones, so Airbnb-style use of a casita is generally not permitted. Long-term rental of a registered internal ADU is allowed in most R zones if the owner occupies the main dwelling. Confirm with Farmington City Planning before counting on rental income.
Which Farmington neighborhoods most often have homes with guest quarters? ▾
The foothill neighborhoods east of Highway 89 — Farmington Ranches, Oakridge, and the newer benches off Shepard Lane and 600 North — have the most purpose-built casitas because lots are larger and builders market to multigenerational buyers. Older homes near the historic district sometimes have converted carriage houses or basement apartments instead.
What price premium do casita homes carry in Farmington? ▾
Expect roughly $75K to $200K more than a comparable single-family home without a separate suite, depending on whether the unit is attached or detached, has a full kitchen, and is legally permitted. Detached guest houses on foothill lots command the highest premium because of construction cost and zoning scarcity.
Can I get financing on a home with a detached guest house? ▾
Yes, conventional and jumbo loans handle these fine as long as the property is still classified as single-family residential. FHA and VA loans are stricter — the second unit usually can't have a full kitchen unless the property is appraised as a 2-unit, which changes loan limits. Talk to a lender familiar with Davis County ADUs before writing an offer.
How many Farmington homes with casitas typically hit the market? ▾
It's a thin segment — usually only a handful of active listings at any given time across the whole city. Inventory turns quickly when a true detached guest house comes up, so buyers in this niche often set up MLS alerts and tour within the first week.