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Utah ADU Rental Income by City (2026): Real Rent + Rules

By Utah ADU Builders · Last verified: July 2026 · Sources: Utah Code Title 10, Chapter 21; RentCafe, Zillow Rental Manager, Rentometer; city ADU codes

The short answer: In most Utah cities, a realistic ADU earns income from one long-term tenant — a lease of 30 days or longer — while you keep living on the property. Utah’s statewide protection for internal ADUs is built around long-term, owner-occupied rental, and state law lets cities require owner-occupancy and ban nightly (Airbnb-style) ADU rentals — which most do. Rent, licensing, and the fine print vary by city. Best for homeowners wanting steady income or a mortgage offset; not for investors banking on nightly returns or guaranteed cash flow.

An ADU (accessory dwelling unit) is a second, smaller home on the same lot as a single-family house — a basement apartment, a converted garage, an attached suite, or a detached backyard cottage. Below, we break down Utah ADU rental income by city, the rules that cap it, and how to check your own property.

How to use this guide. Utah ADU Builders is a Utah-focused ADU planning, feasibility, and builder-matching resource. We are not a city, government office, law firm, lender, architect, engineer, or licensed contractor. We may receive compensation when homeowners request estimates or are connected with local professionals — but that compensation does not change how we explain Utah ADU rules, rent ranges, feasibility factors, or local permitting risks. Rent figures on this page are planning estimates, not guarantees. Local verification is required before you design, permit, finance, or build.

✓ What we verified for this page

  • Utah’s statewide internal-ADU law — owner-occupancy, the 30-day rental definition, short-term-rental authority, and the impact-fee exemption (Utah Property Rights Ombudsman; Utah Code Title 10, Chapter 21)
  • Utah’s 2026 detached-ADU law, which is still being phased in as cities adopt compliant ordinances
  • ADU rental rules — owner-occupancy, minimum lease length, licensing, parking, and short-term-rental limits — for all 13 cities and counties in the table below, using each jurisdiction’s official code or planning materials
  • Recent Utah market-rent data used to build the estimate ranges (RentCafe, Zillow Rental Manager, Rentometer)
  • What we did not do: quote any city a guaranteed ADU rent, or promise income, financing, permit approval, or a property-value increase

In This Guide

  1. Quick Verdict
  2. How ADU Rental Income Works in Utah
  3. Rent Estimates by City
  4. City-by-City Rules & Sources
  5. Can You Airbnb an ADU?
  6. Do You Have to Live on the Property?
  7. Internal vs. Detached: Which Earns More?
  8. Gross Rent Is Not Cash Flow
  9. City Rules That Change Your Income
  10. Feasibility Scorecard
  11. What to Do Before Builder Estimates
  12. FAQ
  13. Sources

Start here: the quick verdict

QuestionBottom line
What is this page good for?Estimating realistic long-term ADU rent by Utah city before you request builder quotes.
Who is it for?Homeowners weighing rental income from a basement, garage, attached, or detached ADU.
Who is it not for?Anyone expecting guaranteed rent, legal or tax advice, financing approval, or Airbnb permission for an ADU.
The rule that surprises peopleIn most Utah cities you must live on the property and rent long-term (30+ days) — so you typically rent one unit, not two.
Smart next stepCheck your property's feasibility before you budget around the income.

Before you count on ADU income, see what your specific lot and city actually allow.

A feasibility check shows whether the math works before you spend on plans or quotes.

A fair warning worth stating plainly: an ADU is not automatically a smart rental just because Utah has become more ADU-friendly. The right project depends on your lot, your city, your utilities, your budget, and how you plan to use the unit. For some homeowners the numbers are strong. For others, once you add build cost, financing, parking, and utility work, the rent barely carries the project. The point of a feasibility check is to find out which one you are — before you spend money on plans or quotes.

How ADU rental income actually works in Utah

The income model in most of Utah is “live in one unit, rent the other, long-term.” Utah protects one specific kind of ADU statewide — the internal ADU — and the state defines it around an owner-occupied home and a long-term rental of 30 consecutive days or longer. Most cities apply the same logic to attached and detached units too. That means the headline “backyard Airbnb” version of ADU income usually doesn’t apply.

Here’s the plain-English version of the rules that shape your number:

  • Internal ADU

    A unit created inside your existing home’s footprint, like a basement apartment. Under Utah law, an internal ADU is a permitted use in most residential zones — but the state’s protection applies to a detached single-family home occupied as the owner’s primary residence, rented long-term (30+ days). Internal ADUs are also exempt from impact fees (the one-time fees cities charge new construction to help pay for roads, water, and sewer capacity).

  • Detached ADU

    A separate structure, like a backyard cottage or a unit above a detached garage. A 2026 Utah law now requires certain larger cities to permit detached ADUs as a permitted use on larger single-family lots, and cities are updating their ordinances to comply. Because the exact lot-size threshold and the local standards — setbacks, size, owner-occupancy, rental terms, parking — are still being set city by city, confirm the rules your city has actually adopted before you plan a detached unit for income.

  • Owner-occupancy

    A rule that the owner must live in one of the units on the property. Utah removed the blanket statewide owner-occupancy mandate for internal ADUs, but it lets cities keep one, and most Utah cities do. Utah courts have upheld owner-occupancy conditions on ADUs. Practically, in most cities you can’t rent both the main house and the ADU to tenants and move away.

So the “by city” differences that actually shape your income are: the market rent you can charge, the ADU type your city and lot allow, whether owner-occupancy applies, the minimum lease term, parking and utility/meter rules, the rental or business license you’ll need, any narrow short-term-rental exceptions, and whether a detached or prefab unit is even feasible on your lot. In other words: the model is similar statewide, but the details — and the dollars — are local.

Utah ADU rental income by city: 2026 estimates

Use this as a planning table, not a rent quote. Because ADU type changes rent, we’ve split the estimate into internal/basement units and detached/casita units. Your real number still depends on bedroom count, a private entrance, parking, finish quality, and legal use.

How we built these ranges: we started from recent (mid-2026) market rents for one- and two-bedroom units across Utah, drawn from rental-data sources including RentCafe, Zillow Rental Manager, and Rentometer. We then adjusted for ADU type — placing internal/basement units toward the lower end of a city’s rent (shared structure, less privacy, less light) and detached/private-entry units toward the upper end (they live like a small private home). These are planning ranges to sanity-check a project, not dated quotes for your specific unit. Rents move, so confirm current numbers for your city and unit before you rely on them.

City (County)Est. rent — internal/basement ADU¹Est. rent — detached/casita ADU¹
Salt Lake City(Salt Lake)$1,150–$1,700$1,400–$2,100
Millcreek(Salt Lake)$1,150–$1,650$1,400–$1,950
Salt Lake County (unincorporated)(Salt Lake)$1,150–$1,650$1,400–$1,950
Draper(Salt Lake)$1,250–$1,750$1,500–$2,100
Sandy(Salt Lake)$1,200–$1,700$1,450–$2,000
South Jordan(Salt Lake)$1,300–$1,850$1,550–$2,200
West Jordan(Salt Lake)$1,150–$1,600$1,350–$1,900
Provo(Utah)$850–$1,300$1,050–$1,550
Orem(Utah)$950–$1,350$1,150–$1,600
Lehi(Utah)$1,200–$1,700$1,450–$2,000
Ogden(Weber)$850–$1,350$1,050–$1,550
St. George(Washington)$1,100–$1,600$1,300–$1,850
Park City / Summit County(Summit)$1,700–$2,800$2,000–$3,400

¹ Planning estimate only, not a guaranteed rent. Built from recent Utah market-rent data (see method above) and adjusted by ADU type. Confirm current rents for your city and unit before relying on any figure. Provo and Ogden ranges reflect university/value markets; Park City reflects a resort market where these units must still be rented long-term.

How to read this table: the number is a starting point, not the answer. A legal, private, well-finished 2-bedroom detached ADU with its own parking rents very differently from a low-ceiling basement unit with shared laundry and awkward access. And the highest-rent city is not automatically the best ADU city — a premium market with a six-figure detached build can pencil worse than a value market where you’re finishing an existing basement.

Find your city's realistic number for your lot — not a generic range.

Check what kind of ADU your property may support and verify your local income path.

City-by-city rules and sources

Rent is only half the picture. Here’s what each jurisdiction requires before you can legally rent an ADU, from official sources. Rules change, so treat this as a starting point and confirm the current ordinance for your address.

  • Salt Lake City (Salt Lake County)

    Owner-occupancy required — the owner or a family member must live in the main home or the ADU. You can rent the other unit with a business license and enrollment in the city’s Good Landlord Program. ADUs can’t be sold or subdivided separately, and Salt Lake City’s ADU code prohibits short-term (under-30-day) rental of an ADU.

    Source: Salt Lake City Planning ADU FAQ and handbook; SLC Code 21A.40.200

  • Millcreek (Salt Lake County)

    Owner-occupancy required and recorded on the property title. Long-term (30+ day) rental is allowed in all ADU types once you have a compliance letter and a business license. Short-term rental is allowed only for internal or attached ADUs — not detached ones.

    Source: Millcreek ADU page

  • Salt Lake County (unincorporated)

    An owner-occupancy affidavit and a business license for the rental unit are required. One ADU per lot; ADUs can’t be sold or subdivided; internal ADUs need a 6,000 sq ft lot and detached ADUs a 7,000 sq ft lot.

    Source: Salt Lake County Office of Regional Development

  • Draper (Salt Lake County)

    The primary home must be owner-occupied for both internal and detached ADUs, rentals must be 30 days or longer, only one ADU is allowed per lot, an extra on-site parking space is required, and separate utility meters aren’t allowed.

    Source: Draper ADU permits page

  • Sandy (Salt Lake County)

    An accessory apartment (Sandy’s term for an internal ADU) must sit inside an owner-occupied home; you’ll need a special use permit, a business license, and a notarized affidavit of owner-occupancy. Short-term rental is handled under Sandy’s separate short-term-rental program, not as a standard ADU use.

    Source: Sandy City accessory apartment standards; Sandy short-term rental program

  • South Jordan (Salt Lake County)

    Owner-occupancy is required and rentals must be 30+ days. Short-term rental is prohibited for internal ADUs, but the city allows short-term rental from a guest house with an approved ADU permit. Separate meters and addresses aren’t allowed, and a detached unit requires a larger lot.

    Source: South Jordan ADU guidebook and city FAQ

  • West Jordan (Salt Lake County)

    Rentals must be 30 days or longer (no short-term rental), only one ADU is allowed per property, you must hold a valid business license to rent, separate utility meters aren’t allowed, and an extra off-street parking space is required.

    Source: West Jordan ADU application

  • Provo (Utah County)

    Internal and detached ADUs are treated as long-term rentals of 30+ days, owner-occupancy is required, and an ADU rental dwelling license is required.

    Source: Provo City ADU information; Provo Municipal Code 14.30.030

  • Orem (Utah County)

    The owner must live in the main home or the accessory apartment and must sign an affidavit that they will not rent both units. The apartment is limited to one household (or up to three single tenants).

    Source: City of Orem accessory apartments

  • Lehi (Utah County)

    ADUs are limited to owner-occupied single-family homes (a recorded Declaration of Owner Occupancy is required), rentals must be 30+ days with no short-term rental, internal ADUs need a 6,000 sq ft lot and detached ADUs a much larger lot, and ADUs aren’t allowed in resort or planned communities.

    Source: Lehi City ADU FAQ

  • Ogden (Weber County)

    Owner-occupancy is required for an ADU — the owner must live in the main home or the ADU. Short-term rental is separately licensed, and in single-family (R-1) zones it’s limited to owner-occupied situations.

    Source: Ogden City ADU application; Ogden Code 15-13-38

  • St. George (Washington County)

    The city permits an ADU only when an owner-occupant lives on the property, short-term rental of an ADU is not permitted, and renting requires a recorded deed restriction and a rental dwelling business license. One ADU per lot (two within the Downtown Boundary).

    Source: St. George City Code 10-17A-3

  • Park City / Summit County

    Short-term (nightly) rental of an ADU is effectively prohibited — ADUs are held to a 30-day minimum. Park City’s separate nightly-rental program applies to eligible dwellings in specific zones with a license, not to ADUs.

    Source: Summit County and Park City short-term rental rules

Can you Airbnb or short-term rent an ADU in Utah?

In most of Utah, no — don’t build your income plan around nightly rental of an ADU. Utah defines the protected internal ADU as a rental of 30 days or longer, and it specifically allows cities to prohibit short-term rentals of ADUs. Most cities do. A short-term rental (STR) means a stay of fewer than 30 days — the Airbnb/Vrbo model.

The clearest example is the one that surprises people most: Park City and Summit County — one of Utah’s busiest short-term-rental markets — effectively ban nightly rental of ADUs. Nightly rentals there are allowed only for eligible dwellings in specific zones with a license; ADUs are held to a 30-day minimum. If the plan was “build a casita in the mountains and Airbnb it,” that plan generally doesn’t work for an ADU.

A few cities carve out narrow exceptions. Millcreek allows short-term rental of internal or attached ADUs (not detached) with a business license, and South Jordan allows short-term rental from a guest house with an approved ADU permit — but not from an internal/basement ADU. Those exceptions are the minority, and they come with permits and licensing. The safe default for every city on this page is to model long-term rent unless you’ve verified a specific short-term path for your exact property.

Why this matters: nightly-rental math can look far higher on a spreadsheet, but if it’s not legal for your ADU, it’s not income — it’s a fine waiting to happen.

Do you have to live on the property to rent an ADU in Utah?

Usually, yes — and it’s the single biggest thing that shapes your income. Utah’s internal-ADU protection is built around an owner-occupied home, and most cities require the owner (or in some cities a family member) to live in one of the two units when the ADU is rented. That requirement is often recorded on the property title or as a signed affidavit during permitting — Orem, for example, makes owners sign an affidavit that they won’t rent both units.

Owner-occupancy has one big practical consequence: you generally rent one unit and live in the other. So the honest way to think about ADU income in most Utah cities is “added monthly income and a mortgage offset,” not “a full second rental property.” If you’re an investor who wants to rent both the house and the ADU and live elsewhere, owner-occupancy cities will block that plan — which is exactly the kind of thing worth catching in a feasibility check before you spend anything.

Internal vs. detached ADU: which one earns more?

Detached ADUs usually command higher rent, but internal or basement ADUs often produce the better return — because the structure already exists. The highest-rent project is not always the smartest project.

ADU typeRent potentialMain advantageMain risk
Basement / internalModerateLower cost if the space already existsEgress windows, ceiling height, fire separation, parking, privacy
Garage conversionModerateUses an existing structureReplacing lost parking, utility work, giving up the garage
AttachedModerate–highMore private than a basement, cheaper than fully detachedAddition cost and design constraints
Detached / casitaOften highestPrivacy and a “separate home” feel that tenants pay forHighest cost; setbacks, utilities, lot fit, larger-lot rules
Prefab / tiny-home-style detachedDepends on legality and siteCan be faster on the right lotMust still meet local foundation, utility, code, and siting rules
A setback is the minimum distance a structure must sit from your property lines. A utility hookup is the connection (and sometimes trenching or a capacity upgrade) that ties the unit into water, sewer, gas, and electric — often one of the biggest hidden costs on a detached build.

For homeowners whose feasibility review points toward a detached, prefab, or casita-style ADU, we may include Nest Tiny Homes — a partner we work with — among practical build-path options where it fits. That’s an option to weigh after feasibility, not a sign that a tiny-home-style ADU works on every lot; local siting, foundation, utility, building-code, and rental-use rules still control what you can put in your yard. See our prefab ADU Utah guide.

For a full cost breakdown by type, see our Utah ADU cost guide.

Gross rent is not cash flow: what to subtract before you decide

The city rent number is only the top line. A realistic decision subtracts the costs of actually owning and operating the unit. Detached new-build ADUs commonly run well into six figures, while a basement conversion can cost far less — which is why a lower-rent basement can beat a higher-rent detached build on return.

A simple way to sanity-check any ADU income estimate:

  • Start with:Estimated monthly long-term rent
  • Subtract:A vacancy reserve (months it sits empty)
  • Subtract:Maintenance and a repair reserve
  • Subtract:Any utilities you pay (many Utah cities don’t allow separate ADU meters, so you may split or absorb them)
  • Subtract:Property management, if you use it
  • Subtract:Your monthly financing payment on the build
  • Subtract:Any increase in property tax and insurance
  • =Estimated monthly cash flow

A basement ADU can beat a detached ADU on return.

The detached unit rents for more, but if it costs several times as much to build, the basement often wins.

A high-rent city can still be a bad project.

Expensive site work, utility upgrades, parking problems, difficult access, or HOA limits can erase the return no matter how strong the rent looks.

One more practical note: before you rent, review your insurance. An ADU rental may call for different coverage than a standard owner-occupied homeowner’s policy.

Once you know your likely rent, pressure-test it against real build cost and rules.

Get a Utah ADU feasibility and cost estimate path before you commit to a build.

The city rules that can quietly change your ADU income

The same ADU can be a strong rental in one city and a weak project in the next, because local rules control rentability, licensing, parking, utilities, and short-term use. Beyond the city-by-city notes above, here are the levers worth checking for your specific property:

  • ▶
    Owner-occupancy. Common across Utah cities; often recorded on title. Determines whether you rent one unit or (rarely) two.
  • ▶
    Rental or business license. Many cities require a rental dwelling license, business license, ADU permit, or recorded covenant before you can legally rent.
  • ▶
    Parking. Most cities require at least one additional off-street space for the ADU, and require you to replace covered parking if you convert a garage. No legal parking solution can stall the whole project.
  • ▶
    Utilities and meters. Several Utah cities (including Draper, South Jordan, and West Jordan) don’t allow separate utility meters for an ADU — which affects how you handle tenant utilities and your cash-flow math.
  • ▶
    Short-term rental limits. Covered above — assume long-term unless you’ve verified otherwise.
  • ▶
    HOA and private restrictions. Utah law limits some HOA restrictions on internal ADUs, but HOAs can still restrict detached ADUs, and your community’s governing documents need a property-specific read.
  • ▶
    Selling later. Recorded owner-occupancy declarations, permits, and covenants can matter when you sell. This isn’t legal advice — just a reason to keep your ADU permitted and on the record.

Is your property likely a fit for ADU rental income?

A property is a stronger candidate when the city allows the ADU type you want, the unit can be rented legally, parking and utilities are solvable, and the rent still works after expenses. Run your situation through this quick scorecard:

QuestionGreen flagYellow / red flag
City and zoning known?Clear ADU path for your parcelUnclear zoning or an overlay district
ADU type decided?Existing basement, or a lot that fits a detached unit“Some kind of ADU,” type undecided
Long-term rental allowed?30+ day path is clearPlan depends on short-term rental
Owner-occupancy works for you?You’ll live on the propertyInvestor-only plan in an owner-occupancy city
Parking solvable?Room for an extra off-street spaceNo legal parking solution
Utilities realistic?Existing capacity likely handles a second unitMajor sewer, water, or power uncertainty
HOA / community rules checked?No obvious restrictionHOA or master-planned-community risk
Rent vs. cost modeled?Rent still works after expensesGross rent barely covers the project
Mostly green → you’re a good candidate to get real numbers.
Two or three yellow → run a feasibility review before you pay for plans.
Any red on short-term rental, owner-occupancy, or parking → don’t model rent until you’ve resolved it; those three most often break a project.

See where your property lands before you request quotes.

Request a Utah ADU feasibility review and get a property-specific income path.

What to do before you request ADU builder estimates

Don’t start with builder quotes alone. Start by confirming your city’s rules, your likely ADU type, a realistic rent range, and your parking and utility picture — so any estimate you request is grounded in a build path that could actually work. A practical order:

  1. 1

    Confirm the rental use you want (long-term, family housing, or a rare verified short-term path).

  2. 2

    Pick the likely ADU type (basement/internal, garage conversion, attached, detached, or prefab).

  3. 3

    Estimate rent using the city table above, then adjust for size, privacy, parking, and finish.

  4. 4

    Run feasibility and cost this is where our funnel fits, so your quote requests are realistic instead of guesses.

Start Your ADU Feasibility & Estimate Path

Compare practical build options for your lot and city before requesting builder estimates — not a generic range.

Utah ADU Builders may receive compensation when homeowners request estimates or are connected with local professionals. We are not a city permitting office and cannot guarantee income, approval, fees, financing, or a property-value increase.

Utah ADU rental income: FAQ

Sources we checked

State law and framework:

  • Utah Property Rights Ombudsman / Utah Department of Commerce — internal ADUs, impact-fee exemption, owner-occupancy, short-term-rental authority (propertyrights.utah.gov; commerce.utah.gov)
  • Utah Code Title 10, Chapter 21 — internal ADUs (§10-21-303) and the 2026 detached-ADU provisions (le.utah.gov)

City and county ADU rules:

  • Salt Lake City Planning — ADU FAQ and handbook; SLC Code 21A.40.200 (slc.gov)
  • Millcreek City — Accessory Dwelling Units (millcreekut.gov)
  • Salt Lake County Office of Regional Development — Accessory Dwelling Units (saltlakecounty.gov)
  • Draper City — Accessory Dwelling Units Permits (draperutah.gov)
  • Sandy City — Accessory Apartments standards and Short-Term Rentals program (sandy.utah.gov)
  • South Jordan City — ADU guidebook and city FAQ; Municipal Code 17.130.030 (sjc.utah.gov)
  • West Jordan City — Accessory Dwelling Unit application (westjordan.utah.gov)
  • Provo City — Accessory Dwelling Units; Municipal Code 14.30.030 (provo.gov)
  • City of Orem — Accessory Apartments (orem.gov)
  • Lehi City — Accessory Dwelling Units FAQ (lehi-ut.gov)
  • Ogden City — ADU application; Ogden Code 15-13-38 (ogdencity.gov)
  • St. George City — City Code 10-17A-3 (stgeorge.municipal.codes)
  • Park City / Summit County — short-term rental and ADU rules

Market-rent signals (used to build the estimate ranges, not as guaranteed ADU rents):

  • RentCafe, Zillow Rental Manager, and Rentometer city rent data (2026)

Related guides: