Live Millcreek listings, filtered
Homes with an ADU or casita in Millcreek.
Millcreek listings with an accessory dwelling unit, whether that is a basement apartment, a detached casita, or an attached mother-in-law suite, fed straight from the MLS and sorted newest first, with a clear read on what makes one legal here and the jurisdiction question you have to settle before you write an offer.
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Newest first
The newest ADU and casita listings.
Fed straight from the local MLS and filtered to homes that note an accessory dwelling unit, whether that is a basement apartment, a detached casita, or an attached mother-in-law suite: new Millcreek listings appear here as they list, and sold homes drop off. The read on what makes one legal, and which jurisdiction sets the rules, is just below.
Buying here
Settle the jurisdiction before you settle on the unit.
The word that matters most here is permitted, and in Millcreek that starts with confirming whether the parcel sits inside the city or one of the unincorporated county pockets it wraps, since that decides whose rules apply. Tell me what setup you need and I will have the Millcreek-area partner agent I work with pull the jurisdiction and the permit history on any home you flag.
Selling here
Own a Millcreek home with a documented accessory unit?
Buyers on this page want the basement apartment, the attached suite, or the rare detached casita with the paperwork to back it up. List it with the Millcreek-area partner agent I connect you with and it goes in front of exactly that search.
Listing information comes from the local MLS and is deemed reliable but not guaranteed.
The local read
What an accessory dwelling really means in Millcreek.
An accessory dwelling is a property feature, not a promise. On a Millcreek listing it means a secondary living space that can function on its own: a second kitchen, its own bathroom, a separate exterior entrance, and sometimes a separate utility meter. The words move around. A basement apartment is a lower level built out that way, a casita is usually a detached unit set apart from the house, and a mother-in-law suite is usually an attached apartment on the main or upper floor. The search shows up across the Wasatch Front for two honest reasons, multigenerational living under one roof and a rentable suite where the unit is legal, and both turn on the same homework, which is whether the space is actually permitted, and by whom.
Millcreek is good ground for this search because of what it is built from, and the form it takes here is mostly the basement apartment. The city is largely an older, detached, single-family market, much of it raised in the 1950s through the 1970s, and on cold-climate Salt Lake County stock the basement is standard. The valley-floor core around 3300 South and the established benches of East Millcreek and Canyon Rim carry a deep supply of full basements that already double the living space. Adding a second kitchen and a private entrance to that kind of full basement is exactly the conversion most of these listings describe. Attached mother-in-law suites turn up in the larger bench and upper-bench floor plans, and on the sloped lots climbing toward Wasatch Boulevard a daylight or walkout lower level can make the space live like its own floor. A fully detached casita is the rarest shape in a city this landlocked and built out, since it takes a lot with room for a second structure, so treat one as a find rather than an expectation.
Here is the Millcreek wrinkle that does not exist in most cities, and you have to settle it first. The city limits are irregular and still wrap pockets of unincorporated Salt Lake County, the so-called county islands, and a Salt Lake City mailing address on ZIP 84109, 84117, or 84124 does not tell you which government you are actually in. That matters because the rules for an accessory dwelling depend on the parcel's jurisdiction and its zoning, so two homes a block apart can answer to different code. Before you read a basement apartment, casita, or attached suite as a legal second unit, you confirm the parcel against the county parcel viewer and check the rules for that specific jurisdiction. The other half is the unit itself: a second kitchen and an outside door do not make a unit conforming on their own, and a great many existing accessory units in older Utah homes were finished over the years without permits or were built before today's rules. That is not a reason to walk, but it is the reason to verify rather than assume.
Treat any income angle with the same caution. I will not quote you a rent number or a payment number on a page like this, because what a unit could do depends on its legal status, the specific space, and rules that change, and a non-conforming unit cannot be counted on at all. What I can do is point you at the right stock. If a true separate suite is the goal, the older ramblers are the natural hunting ground, so the single-story page is a useful next stop. If you only want the extra square footage and not a second kitchen, the homes with a basement page is the wider search, and the no-HOA page pairs naturally with this one on the older individual-lot stock. Earlier in the process than show me listings? Start with the Millcreek guide, and when a home below reads right, that is the moment to reach out.
What counts as an accessory dwelling
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The form it takes: in Millcreek most of these are basement apartments, since full basements are the norm on this older detached stock. Attached mother-in-law suites turn up too, and a detached casita is rare in a built-out city, so read the listing for where the space actually sits.
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Second kitchen: a full or kitchenette setup downstairs is the core marker. A finished basement with no kitchen is just finished space, not a separate unit, so read the listing for the actual lower-level layout.
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Separate entrance: the second front door this search is really about. A private exterior entry, often a walk-down or a side door, is what makes the space usable on its own rather than a through-the-house extension.
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Separate egress: every sleeping room below grade needs a code-sized window well or a door to the outside. This is a safety item and a legality item at once, and it is the first thing to confirm in person.
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Right jurisdiction: Millcreek City and unincorporated Salt Lake County set different rules. Confirm which one the parcel sits in before you read the unit as legal, because a mailing address will not tell you.
The local map
Where the accessory units actually are.
Homes with a second living space turn up across Millcreek, but a true separate suite concentrates in a few patterns, and the basement apartment is by far the dominant form. Here is where to look, and the due-diligence note attached to each.
The valley-floor core
The central, lower-elevation band around 3300 South carries the city's oldest and most affordable detached stock, the post-war ramblers, bungalows, and brick ranches on the west and north side. Full basements are nearly universal here, which makes it the most likely place to find a real separate suite, most often a basement apartment, and also the most likely place to find one finished without a permit, so verification matters most in this band.
East Millcreek and Canyon Rim
The mid-bench bands climbing toward Wasatch Boulevard hold mid-century ranches and ramblers on larger lots than the core, with mature trees and quiet streets. The larger lots and the era make for deep full basements, several of them built out over the years, and it is where an attached mother-in-law suite is most likely to turn up. Confirm both the permit history and the condition of the older systems.
County-island pockets
Because the city limits are irregular, some homes that look and address like Millcreek actually sit in unincorporated Salt Lake County. The housing can be identical, but the rules for an accessory dwelling are not, so the jurisdiction check on the parcel viewer is the very first step on any home in these zig-zag edges.
Walkout and daylight lots
On the sloped bench lots climbing toward Wasatch Boulevard, a lower level can open to grade with full windows and a real door, which is the ideal setup for a separate suite that lives like its own floor rather than a dark basement. These are less common but worth watching for on the upper-bench stock near Mount Olympus and Olympus Cove.
Remodeled and infill homes
Millcreek's new building is teardown-and-rebuild and remodel rather than sprawl, so some recently updated homes come with a lower level finished as a legal suite under current permits. A documented recent permit is the cleaner path, but you still confirm the paperwork and which jurisdiction issued it.
Bigger lots, the rare detached casita
A fully detached casita needs a lot with room for a second structure, and those are scarce in a landlocked, built-out city. When one turns up, it tends to be on the larger bench parcels of East Millcreek or the upper-bench enclaves rather than the tighter valley-floor core. Treat a detached casita as a find, and still verify it the same way as any other accessory unit.
Before you tour: what to actually check
Which jurisdiction: run the parcel through the Salt Lake County parcel viewer to confirm whether the home is in Millcreek City or unincorporated county, because that decides whose rules apply. The mailing address will not tell you.
Is it permitted: ask the listing agent for the permit history and confirm the unit's status with the right jurisdiction. A second kitchen and a side door do not make a unit legal on their own.
Egress on every bedroom: each sleeping room below grade needs a code-sized egress window and well, or a door to the outside. Look at the actual window wells, not just the listing photos.
Conforming vs. existing: many older accessory units are non-conforming, finished before today's rules or without permits. Understand exactly what you are buying and what can and cannot be relied on.
Attached, detached, or below grade: note which form you are actually looking at, because they live very differently. A basement apartment, an attached suite, and a detached casita each carry their own layout, systems, and egress questions, so check whether the kitchen, HVAC, and any meter are genuinely separate, and whether the wiring and gas work were done to code and inspected.
Older-home condition: this is older established stock, so on the home overall date the roof, furnace, electrical panel, and the sewer lateral, and scope the line if the listing does not say it was done.
Want a real accessory dwelling without the guesswork?
Tell me your budget, the part of Millcreek you like, whether you want a basement apartment, an attached suite, or a detached casita, and whether you need a fully permitted, conforming unit or are open to an existing space you would verify and possibly bring up to code. I will connect you with a trusted Millcreek-area partner agent for the on-the-ground work and stay on the file for the homework and the financing, with straight answers about which jurisdiction a parcel sits in, which spaces are legal units, and which are just finished basements with a door.
Selling a Millcreek home with a basement apartment, a casita, or an attached accessory suite? The buyers reading this page want exactly that. List it with the Millcreek-area partner agent I connect you with, and your home gets featured across MovingUtah, on the pages they are already reading.
Quick answers
ADU and casita shopping, answered.
It is a secondary living space that can function on its own, and the listings use several words for it. In Millcreek the most common form by far is a basement apartment, a lower level built out with a second kitchen, its own bathroom, and a separate exterior entrance. A casita usually means a detached unit set apart from the main house, and a mother-in-law suite usually means an attached accessory apartment on the main or upper level. All of them are property features describing the space, nothing more. The big thing to know is that a second kitchen and an outside door do not make a unit legal on their own, so the real work is confirming whether it is permitted and conforming with the jurisdiction the parcel sits in.
You check the parcel, not the mailing address. Millcreek's city limits are irregular and still wrap pockets of unincorporated Salt Lake County, the county islands, and a Salt Lake City mailing address on ZIP 84109, 84117, or 84124 does not tell you the municipality. Run the parcel through the Salt Lake County parcel viewer to confirm the jurisdiction. It matters here because the rules for an accessory dwelling, whether that is a basement apartment, a casita, or an attached suite, along with services and the fee stack, depend on which government the parcel is in. I will help you run that check on any home you are serious about.
Some are and some are not, which is exactly why you verify rather than assume. An accessory dwelling has to be permitted with the correct jurisdiction, Millcreek City or unincorporated Salt Lake County, and what is allowed depends on the parcel's zoning. Because much of the city's stock is older, a great many existing units, most often basement apartments, were finished over the years without permits or were built before today's rules, so they are non-conforming. That is not a dealbreaker by itself, but you need to know which one you are buying. Confirm the jurisdiction, the permit history, and the egress independently before you rely on it, and I will help line up those checks.
Most often in the older detached stock, the post-war ramblers and bungalows on the valley floor around 3300 South, and the mid-century homes on the larger bench lots of East Millcreek and Canyon Rim, all of which sit over full basements that make a basement apartment the dominant form here. Attached mother-in-law suites turn up in the bigger bench and upper-bench floor plans, and a walkout lot on the upper bench can make the lower level live like its own floor. A fully detached casita is rare in a landlocked, built-out city like this one, so treat one as a find rather than an expectation. Keep the county-island question in mind in the zig-zag edges, since the home can look like Millcreek while sitting in unincorporated county. The live listings above are the honest count on any given week.
Only where the unit is legal for that parcel, and that is the whole point of the verification. A permitted, conforming accessory dwelling is a different thing from a non-conforming space that happens to have a kitchen, the rules differ between Millcreek City and unincorporated county, and they can change, so this is a question to confirm with the correct jurisdiction for the specific property, not to assume from the listing. I will not put a rent figure on a page like this, because it depends entirely on the unit's legal status and the specifics, but I can connect you with a local agent who will get you straight answers on what your jurisdiction allows.
Egress is a legal, code-sized way out of every below-grade sleeping room, usually an egress window with a window well sized for a person to climb out, or a door to the outside. It is both a safety requirement and a piece of what makes a basement bedroom or apartment count as legal living space. It matters most on the basement units that make up most of this search, and it is the first thing to confirm in person, because a room marketed as a bedroom downstairs is not really one without it. We check the actual window wells, not just the photos.