Live Brigham City listings, filtered
Casita and ADU homes in Brigham City
Brigham City homes for sale with a second place to live, listed by every brokerage and pulled live from the MLS. Under the listings: the kinds of ADU the city allows, the rules that come with one, and a quick check for a real ADU.
A second home beside your own.
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The newest Brigham City casita and ADU homes
Listing information comes from the Wasatch Front Regional Multiple Listing Service and is deemed reliable but not guaranteed.
Four kinds
Which kind of second space is it?
The city allows one ADU on a lot: inside the home, built onto it, or in a separate building, which can sit over a garage. A listing may use the word casita for any of them. Pick a kind to see what the city says and what to look at.
What the city saysAn internal ADU, no size limit
What to look at
- Basement or main floor. A unit inside the house, such as a finished basement apartment. The city sets no size limit on an internal unit.
- The street view. An internal ADU cannot change much about how the home looks from the street.
- The bedroom window. A basement bedroom needs a window big enough to climb out of. Have the inspector check it.
What the city saysAn attached ADU, an addition
What to look at
- An addition. A unit added onto the side or back of the house. Ask for the plans and the permit.
- One per lot. An attached unit counts as the lot's one ADU. The owner lives on the lot, and one more off-street parking space is needed.
- Ask the city. Ask which rules apply to an addition before you plan one, and get the permit records on any unit already built.
What the city saysA detached ADU, one exception on height
What to look at
- Height. A detached unit may be no more than one story and 20 feet tall. The limit does not apply to a unit over a garage or inside the area where the main home may be built.
- Parking. If a garage becomes living space, its parking must be replaced on the lot.
- Fire access. The city wants a detached unit within 150 feet of a fire access road.
What the city saysA detached ADU, 300 to 1,000 sq ft
What to look at
- Size. The city allows 300 to 1,000 square feet, on no more than 25 percent of the rear yard.
- Fence and windows. A 6 foot privacy fence goes between a detached unit and the neighbors. Upper windows that face them must be frosted. Balconies, rooftop decks and outside stairs are not allowed inside the setback, the strip along a property line where building is limited.
- Utilities and fees. Utilities run underground, and the city charges impact fees on every detached ADU. Ask for the amount before you plan on one.
The guide
What to know before you buy
The local read, the city rules, two homes, one lot, the cost, before you tour and how it works
The local read
What casita and ADU mean in Brigham City
In shortThese are Brigham City homes that offer a second place to live. Each lot may have one ADU, which can sit in the house, be added to it, or stand on its own.
ADU is short for accessory dwelling unit, a second home on the same lot as the main house. Brigham City allows one per lot. It can sit inside the house, be built onto it, or stand apart in the yard, as a cottage or an apartment over a garage. The ADU and the home stay on one lot and cannot be sold apart.
The owner has to live full time in the home or in the ADU. The owner signs an affidavit, a sworn written statement, and a legal notice is recorded with Box Elder County. A camper, a trailer, a mobile home or an RV does not count as an ADU.
Casita is a listing word, not a legal one. It may mean a guest house, a back room or a studio. That does not make it an ADU. My base is Southern Utah, so I send the listing to a partner agent I trust in Box Elder County, and we ask the city what is on record.
Casita
A word on a listing- Not a legal term
- May be a guest house, a back room or a studio
- Ask how the city has it on record
ADU
Check with the city- A second home on the same lot
- One per lot, and the owner lives there
- Approved by the city, with an affidavit on record
The city rules
What Brigham City allows
This follows the city's ADU sheet, revised July 14, 2025, under section 156.360 of the city code. Rules change, so confirm today's rules with the city's Community and Economic Development office at 435-734-6604 before you plan around a second space.
No short stays
The city bars rentals of less than 30 consecutive days in any ADU. Plan on long-term renters only, and get a rental business license before you rent.
The owner lives on the lot
The owner must live full time in the home or the ADU. The affidavit is recorded, and the ADU cannot be sold apart from the home.
A new state law
Utah Code 10-21-304 took effect October 1, 2026. A city of Brigham City's size must allow a detached ADU on a lot of 11,000 square feet or more with a single-family home. The city may still cap size, height and lot coverage, and bar rentals under 90 days. Ask the city if section 156.360 has been updated to match.
The CC&Rs
Recorded CC&Rs for a subdivision may restrict rentals or a second unit. Read the papers early, next to the city rules.
Two homes, one lot
Living with a second space
Two households on one lot take some planning. These are the parts to check.
Parking
The city wants one more off-street space on a hard surface, outside the front setback unless it allows another way. The city also limits street parking, with an overnight ban in winter, so ask for the current rule.
Heat and meters
An ADU uses the same connections and meters as the home. A separate water or sewer line is allowed only by exception, with fees, and propane cannot be the main heat.
Utilities and fees
A detached unit runs its utilities underground and pays impact fees. An application costs $50, and a building permit comes before the work starts.
Looks from the street
An internal ADU cannot change much about how the house looks. A detached one must match the house or fit a modern style that suits the street.
City rules: Brigham City ADU sheet, revised July 14, 2025. Street parking: the city's winter parking ordinance of December 2023; ask the city for the current text.
The cost
What a second space costs in Brigham City
A second space is priced by the same things as the rest of the home: its size, its finish and the lot. Ask what similar homes nearby sold for, and ask for the permit records if the unit is already built.
Census data show a typical Brigham City home value of about $369,300. Owners gave that figure as what their homes are worth, so it is not a sale price. For a unit not yet built, ask the city for the impact fees that apply.
Shop by budget, or start from every home in a price range
Before you tour
The second space checklist
Take this on every showing. Tick each line as you check it. Your ticks stay on this device.
How it works
How we find you the right second space
My base is Southern Utah. Here is how a Brigham City search for a second space works with me.
Say what you want the space to do
A basement apartment, a unit built onto the home, or a cottage in the yard? And will you live on the lot?
You meet a partner agent in Box Elder County
A partner agent I trust in Box Elder County knows the streets, reads each listing for a second space and sets up the showings.
We ask the city
We find out what the city has on record for the home, and what the lot would allow, before you make an offer.
Your partner agent handles the offer paper
I stay with your file for the homework and the lending side until you have keys.
Where to look
Where the second-space homes may turn up
No source counts the ADU homes in town. The map shows where the lots have more room. County parcel records from 2020 put about 4 in 10 homes on 11,000 square feet or more, the state's line for a detached ADU.
Center
The old grid
The oldest homes in town, on lots with a median of about a quarter acre. A unit added long ago needs its permit records.
East of 500 East
The east side
Sunset Heights, Mt View Estates and Cottonwood, with plats from the 1950s into the 1990s. The median lot is about a quarter acre, and the streets climb the hillside.
North of the creek
The north end
Cherrywood Estates, from the early 1970s, and North Forty, built from about 2008 to 2015. Check each lot against the city rule.
South and southwest
The south end
Peach Tree Estates, Baird Glauser and Lindsay Park, with plats from 1987 to 2004. Ask for the lot size on each listing.
West side
The newest west side plats
Spring Creek and Beeton Path, built since 2025. Homes built from 2010 to 2020 sit on a median lot of about a tenth of an acre in county records, so check the lot against the rule.
Searches to look at first
The quick check
Is it an ADU, or a guest suite?
Tick what the home has. Every tick draws one more part of the suite, and the answer underneath updates.
What the home has
What it looks like
Every part of an ADU shows up
A private door, a kitchen, a bath, a safe bedroom and a permit are all present. Have the city confirm that it is on record as an ADU, and how the owner rule fits.
It looks like an apartment. Check the permit.
Without a permit on file, this is extra space and not a legal ADU. Ask for the records before you count on it.
A guest suite that has a private door
It has a private entrance and a bath, yet no full kitchen. Not an ADU, though you can use it from day one.
A suite inside the house
A separate bathroom, set apart from the main rooms. Flexible space, but everyone shares the front door.
Tick what the home has
Homes on this page tend to fall between a plain guest suite and a full ADU. The boxes help sort out which.
Client reviews
What a past client said
These are real reviews from past clients, shown as they wrote them.
Posted by past clients on Google and Experience.com.
If you want a very competent, knowledgeable, personable, honest realtor, who has your back every step of the way, Scott is your guy! He leaves no stone unturned and genuinely has your best interests in mind at all times. He communicates every move. Working with Scott definitely made this the easiest and most stress free real estate transaction that I have ever experienced!! Thank you, Scott!!
Quick answers
Casitas and ADUs, answered
Talk to Scott
Need a partner agent to look into the second space for you?
Tell me if you want a unit inside the home, one built onto it, or a cottage in the yard, and whether you plan to live on the lot. I connect you with a partner agent I trust in Box Elder County for the showings, and I stay on your file for the homework and the loan side. Before you fall for a home, we find out what the city has on record for the second space.
How it works in Brigham City
- Ask me about any listing.Found a Brigham City home with a second space? Send me the link. I will get the partner agent's read on the second space and what the city has on record.
- A local partner agent.I connect you with a partner agent I trust in Box Elder County for the showings, the offer and the closing. I stay on your file.
- A lender's eye on the listing.I am licensed in both real estate and lending. On any one purchase I take one role. If I am your lender, I can tell you early if a home could be hard to get a loan on.
- A reply within one business day.Ask about any home you see here. Call or text, and I get back to you within one business day.
Or call me: (435) 357-4345I reply within one business day.
Referral disclosure. Outside Southern Utah, I connect home sellers and buyers with partner agents I trust in their area. If you choose to work with an agent I refer, that agent's brokerage pays my brokerage (Real Broker, LLC) a referral fee. The fee comes out of the agent's compensation; it is not an added cost to you. You are always free to choose any agent you wish, and using a referred agent is never required.
Referral disclosure. Outside Southern Utah, I connect home sellers and buyers with partner agents I trust in their area. If you choose to work with an agent I refer, that agent's brokerage pays my brokerage (Real Broker, LLC) a referral fee. The fee comes out of the agent's compensation; it is not an added cost to you. You are always free to choose any agent you wish, and using a referred agent is never required.