Utah property tax appeal for condos and townhomes — the county priced the building, not your unit

Most condo owners open the July notice and assume somebody at the county valued their unit. Nobody did. The assessor valued the project — one rate for the building or the plat, calibrated on whatever sold there last year — and the number on your notice is that rate multiplied by your floor plan.

That is the whole problem with attached-unit assessments in Utah, and it's also the whole opportunity. A model that prices the building is right on average and wrong at the edges. The 1998 kitchen and the 2024 kitchen carry the same rate. So do the unit over the dumpster enclosure and the one over the courtyard. The building has one number. The units don't.

The good news is that a condo or townhome is the easiest residential property in the state to appeal well, because the evidence lives down the hall. Every closed sale in the project shares your lot, your builder, your HOA, your roof, and the assessor's mistakes. What follows is how to use those sales, what the HOA fee and a special assessment actually do to value, why a townhome's notice reads differently, and where a report earns its fee. One calendar note first: the 2026 filing deadline under Utah Code §59-2-1004(3)(a) is the later of September 15 or 45 days after the notice was mailed — for anyone who filed, this is what to bring to the hearing. For everyone else, it's next July's playbook.

One unit, one share — how Utah taxes a condo

The statute is short. Utah Code §57-8-27 says each unit, together with its percentage of undivided interest in the common areas and facilities, is a parcel, and is separately assessed and taxed — and that neither the building nor the common areas may be considered a parcel on their own. So the value on your notice already includes your slice of the pool, the elevator, the parking structure, and the roof. There is no separate line for common area, and there shouldn't be.

A townhome usually gets to the same place through a different door. Most Utah townhomes aren't condominiums in the legal sense — they're fee-simple lots on a recorded plat, with the common area held by an association under the Community Association Act. For assessment, §10-20-809(4)(a) inside a city, and §17-79-709 in the unincorporated county, give each lot on the plat an equal interest in the common area unless the plat says otherwise. The common area's value is folded into the lots. The association is not paying tax on the clubhouse; you are, in 48 equal pieces.

Then there's the fee. The HOA fee is not on the notice, the assessor doesn't deduct it, and the statute doesn't ask him to. The county is assessing fair market value under §59-2-102 — what a willing buyer pays a willing seller — and a buyer comparing two identical units, one at $220 a month and one at $480, pays less for the second. The discount is already sitting inside the project's closed sales. The model may or may not have noticed.

The fee isn't taxed. The price it produces is.

The building-average problem

Every parcel in Utah is valued as of January 1 — §59-2-103(2) sets the lien date — and no county has the staff to walk 3,000 condo units a year. So the assessor runs a mass-appraisal model. For a detached house the model works from a neighborhood. For attached product, the "neighborhood" is very often the project itself: the model learns from the units that sold, derives a rate, and prints that rate times square footage on every notice in the building.

What the model usually carries: square footage, bedroom and bath count, year built, whether there's a garage. What it usually doesn't: floor level, which direction the windows face, end unit versus interior, a deeded stall in the structure versus an assigned spot in the surface lot, and — the big one — whether the kitchen was touched in the last twenty years. Those are the variables that separate a $340,000 sale from a $410,000 sale in the same building. They're also the ones a hearing officer can see in a photo.

Take a 48-unit project in Murray. Six units sold last year. Three were updated top-floor units at $395,000 to $415,000; three were original-condition ground-floor units at $340,000 to $355,000. The model averages toward $375,000 and applies it to all 48. The ground-floor owner with the 1998 cabinets is $25,000 to $35,000 high. The top-floor owner is low and says nothing. Multiply that by every project in the county and you have the shape of the attached-unit roll.

2026 adds a timing problem on top. The Salt Lake Board of Realtors' 2026 forecast reports that condo, townhome, and twin-home sales in Salt Lake County fell 9.5% in 2025 — from 3,719 to 3,372 — while single-family sales edged up 0.8%, and the attached share of the market slipped from 30.8% to 28.5%. Median days on market stretched from 29 to 36. A model still learning from 2024's attached sales is reading a market that had already softened by the time the notice printed.

A building average is a fact about the building. The appeal is about the unit.

The adjacency rule — the comparable is inside the project

Salt Lake County's appeal evidence page asks for three to five comparable sales from within one year prior to January 1, in MLS Residential Full Report format. For a detached house, finding three is the work. For a condo, the work is choosing which three. The order of preference:

1. Same building, same floor plan. If it exists, it's the whole case.
2. Same project. Different plan, same everything else.
3. Same product, same era, within a mile. A 2006 garden-style flat compared to a 2006 garden-style flat.
4. Anything else. Last, and only if the first three are empty.

The mechanism is adjustments. A sale inside the project shares your location, builder, construction quality, age, amenities, parking arrangement, and HOA. What's left to explain is floor, orientation, end-unit position, condition, and updates — exactly the variables the model dropped. A similar-looking condo in Draper compared to yours in Sugar House needs an adjustment for everything, and every adjustment is a line the hearing officer can disagree with. Fewer adjustments, fewer arguments. That's the rule.

Two traps. The first is mixing product. A stacked flat is not a two-story townhome with a tandem garage, and a garden unit is not a rowhouse. Pull the wrong product and the comparable proves the county's number rather than yours. The second is the listing itself. The MLS full report is where condition lives — the agent remarks, the photos, the "original owner, ready for your updates" language that tells a hearing officer what the buyer saw. Bring those reports whole, and bring your own unit's photos to match: the laminate counters, the almond appliances, the carpet in the bath. Condition is the argument. Photograph it.

Twelve identical units. Six sales. The argument writes itself, if you let the project make it.

What the fee, the reserves, and the special assessment do to value

The fee is a monthly cost, and buyers price monthly cost — a unit carrying $260 more a month than the project across the street trades lower, for roughly the same reason a unit with a higher mortgage payment would. But the fee is the mild version. Three things that don't appear anywhere in the county's model move attached-unit value hard:

• A pending special assessment. An $18,000-per-unit re-roof or siding assessment is a liability that transfers with the deed. A buyer who knows about it negotiates it off the price or walks. Sales in the project after the announcement carry the discount.
• An underfunded reserve. §57-8-7.5 for condominiums and §57-8a-211 for other associations require a reserve analysis at least every six years, updated every three. If the study shows the association can't fund the next roof from reserves, the special assessment is coming, and an informed buyer prices that in before it's announced.
• Litigation or a lending freeze. A construction-defect claim against the builder, or a project that lenders have stopped lending in, shrinks the buyer pool to cash. Cash buyers pay less. Every sale in the project during that window says so.

None of this reaches the assessor. The model never reads HOA minutes. The evidence is the special-assessment notice, the reserve analysis, the association's budget, and — the part that matters — the closed sales inside the project after the news landed. Under §59-2-1004(7)(a) each side hands over its evidence at least five days before the hearing; the county's page doesn't list HOA documents, and it doesn't have to. The standard is a willing buyer with reasonable knowledge of the relevant facts. A buyer with reasonable knowledge of an $18,000 assessment knows about the $18,000.

One honest caveat. The fee and the documents explain the sales. They don't replace them. A hearing officer who is handed a reserve study and no comparables has been handed a reason to be sympathetic, not a value.

The special assessment isn't on the notice. The buyer's discount for it is in the sales.

Townhomes are not condos — and the notice knows it

A condominium unit has one value on the notice. A fee-simple townhome has two — land and improvement — because the county is assessing a lot with a building on it, the same as a detached house. That second line is worth reading. On a 2,000-square-foot attached lot, the assessor's land rate is sometimes borrowed from the detached quarter-acre lots two streets over, and a land value that runs 40% of the total on a townhome is a number to question, not accept.

The comparable rule bends for townhomes too. A row of eight attached homes on their own lots is a smaller sample than a 120-unit condo project, so the same-project pool runs dry faster and the third tier — same product, same era, nearby — carries more of the load. Twin homes, with two units and one party wall, reach into neighboring twin-home developments the same way. The discipline doesn't change. Attached compares to attached. Never to the detached house on the corner.

And if you bought the townhome in the last year, none of this is the first move. A contract executed within six months either side of January 1 is a qualifying contract under §59-2-1004(1)(h), and the purchase-price appeal explains why the settlement statement is most of the case — the county may only answer it with arm's-length, market-movement, or improvement evidence. In a year when attached sales fell 9.5%, market movement is not the county's argument to make.

The notice tells you what kind of parcel you own. Read it before arguing about it.

Two checks before the value argument

First, the division. Taxable value divided by market value on the notice: 0.55 means the 45% residential exemption is on; 1.00 means it's off. Condos are where it goes missing most often, because the two legitimate reasons to be at 1.00 — a rental-pool unit in Park City, a Summit County second home — sit next to the illegitimate one: a primary-residence unit that was a rental under the prior owner, and stayed at 100% because nobody filed the declaration after closing. The fix is a county form, not an appraisal, and the residential exemption guide walks through it. On a $375,000 unit at a combined rate near 1%, a missing exemption is roughly $1,700 a year — more than almost any value appeal on a condo will return.

Second, the square footage. Condo records disagree with reality more than any other property type. Plats measure to the center of party walls, county cards pick up balconies and storage lockers, and a townhome's below-grade finished space gets counted above grade more often than it should. If the parcel is carrying 150 square feet that aren't there, the rate is beside the point — and a house measurement to ANSI Z765 is the cheaper fix. Bring the sketch; the county's number changes when the area does.

Value is the third argument. Make the first two first.

What the appeal is worth

Use the rule of thumb from what a Utah BOE appeal actually saves: on a primary residence, a $1,000 reduction in market value is worth roughly $5 to $7 a year after the 45% exemption at a combined rate near 1%. The Murray example — $30,000 high on a $375,000 unit — lands at $150 to $210 a year. Not life-changing. Also not nothing, for fifteen minutes with the project's sales, and it compounds until the model catches up.

The bigger cases are the ones with a story. A project carrying a $18,000 special assessment and a lending freeze can be $60,000 to $90,000 high per unit against its own post-announcement sales, which is $300 to $630 a year, every year the county's model keeps pricing the building it thinks it has. And the exemption, when it's missing, is worth more than either.

The appeal is cheap. The only way to lose it is to argue value before checking the two lines above it.

Where an appraisal fits — and where it doesn't

Most of the time, on a condo, it doesn't. If the project had four or five arm's-length sales in the window, the units are similar enough that the differences are visible in photographs, and the exemption line is correct, the MLS reports and your photos are the appeal. An appraiser who tells a condo owner with six same-building sales that they need a $500 report is selling something.

Where a signed tax appeal appraisal earns the fee is the set of cases the project can't argue on its own:

• No sales in the window. An eight-unit building where nothing closed in 2025 has to reach outside itself, and every outside comparable needs a defensible adjustment.
• A mixed-condition project where the adjustments are the fight. When the county's answer is "the updated units sold for $410,000," the case is the dollar difference between the 1998 kitchen and the 2024 one, and a hearing officer weighs that better from someone who adjusts for it weekly.
• A special-assessment or defect project. The documents explain the sales; a disinterested opinion ties them to a number.
• Resort and luxury attached in Summit and Wasatch County. Ski-in/ski-out, view corridor, and lock-off configuration make every unit its own product, and "the project" may have three sales in four years. That's an appraisal problem, not a spreadsheet problem.
• The county brings its own comparables. A hearing officer weighing two comp sets wants one of them signed.

If you want a read on which of those you have before paying for anything, send the unit, the project, and the notice figures. Sometimes the honest answer is "file the MLS reports and skip the report."

The appraisal is the tool for the argument. The project's sales are the tool for the fact.

Frequently asked

Related reading

Start with the mailing that triggers all of this — reading your Utah property valuation notice decodes the July notice line by line across the eight counties — then work backward from the September 15 checklist. If you bought the unit in the last year, the purchase-price appeal is the shorter road. The residential exemption guide covers the 0.55 division and the county declaration clocks, and the rental-property appeal explains why a tenant-occupied unit still qualifies. What a BOE appeal actually saves has the arithmetic, and what a Salt Lake County BOE hearing looks like covers the room. Service pages: tax appeal appraisal, house measurement.

The county priced the building because it had to. You get to price the unit because the sales that prove it are already on your floor. File them.