If you protested your property valuation back in May, Mile High Title Guy says the window to escalate that fight closed September 15. That was two days ago. For most Denver homeowners, winning that appeal would not have fixed the thing that actually made their bill go up.
That distinction is easy to miss. Denver's own assessment data shows that home values in most neighborhoods held flat or fell during the 2025 reassessment cycle. The typical single-family or row home in Denver saw its assessed value drop 1.6 percent from two years earlier. And yet property tax bills across the metro rose anyway, in some cases by double digits. The value most owners could have appealed was not the number driving the increase. A separate mechanism was.
What Actually Happened to Denver Home Values in 2025
When Denver Assessor Keith Erffmeyer and his counterparts across the metro released their biennial revaluation last year, the headline was relief. Erffmeyer said it had been fourteen years since he'd seen anything close to flat, let alone a decrease, and that even the 2021 reappraisal done in the middle of the pandemic still showed increases.
The relief wasn't evenly spread. Denver's north and west side neighborhoods saw the steepest declines: Athmar Park led the drop at 8.7 percent, followed by Clayton at 7.5 percent, College View at 7.4 percent, North Capitol Hill at 7.3 percent, and Civic Center at 6.9 percent. Meanwhile, seven of Denver's eight million-dollar-median neighborhoods kept climbing. Cherry Creek posted the largest jump in the city at 11.65 percent, pushing its median assessed value to $1.53 million. Belcaro rose 7.02 percent to $1.88 million, Country Club rose 4.44 percent to $1.62 million, Hilltop rose 4.37 percent to $1.65 million, and University Park rose 4.3 percent to $1.35 million.
| Neighborhood | Median Valuation Change (2023 to 2025 cycle) |
|---|---|
| Athmar Park | -8.7% |
| Clayton | -7.5% |
| College View | -7.4% |
| North Capitol Hill | -7.3% |
| Civic Center | -6.9% |
| Wellshire | +2.66% |
| University Park | +4.3% |
| Hilltop | +4.37% |
| Country Club | +4.44% |
| Belcaro | +7.02% |
| Cherry Creek | +11.65% |
Erffmeyer's read on Cherry Creek was blunt: it has been immune to bad news, residential or commercial, for as long as he can remember. But he also pointed out that whether a rising or falling value counts as good news depends entirely on whether you plan to sell.
The Formula Did What the Market Didn't
Here is where the paradox lives. Even in neighborhoods where assessed value fell, tax bills still went up, because two changes at the state level moved independently of any single home's worth.
The first was the expiration of temporary relief. CPR News reported that a 2024 law had lowered every residential property's taxable value by up to $55,000, a cushion built to soften the shock of the historic 2023 reassessment. That cushion expired heading into the 2026 tax year, so homeowners are now taxed on their full assessed value again.
The second was a permanent shift in the residential assessment rate itself, phased in under Senate Bill 24-233. That bill replaced the old Gallagher Amendment framework with a fixed schedule that steps the rate up over several tax years, arriving at a different number for school district levies than for local government levies starting in 2026.
CPR News ran the math on a $500,000 Denver home: under last year's discounts, the owner paid about $2,360 in property tax. Under this year's rules, with the same home worth the same amount, the bill comes to roughly $2,680, an increase of more than 13 percent. Nothing about the house changed. The formula did.
Susan Murphy, the Elbert County assessor and president of the Colorado Assessors' Association, said her office has fielded a wave of confused calls this year from property owners staring at a lower valuation and a higher bill in the same envelope.
Why the Same Formula Hits Neighborhoods Differently
If the rate and relief changes applied uniformly, you might expect every Denver homeowner to see roughly the same percentage increase. That is not quite what happens, because the formula change and the valuation change stack on top of each other rather than replacing one another.
In a neighborhood like Athmar Park or Clayton, where assessed value fell, that decline offset part of the formula-driven increase. The bill still went up, but the drop in value took some of the edge off. In a neighborhood like Cherry Creek or Belcaro, where value kept climbing, there was no offset. The formula increase and the valuation increase both landed on the same bill, which is why the priciest, fastest-appreciating pockets of the city are likely absorbing the largest total percentage increases this cycle, not just the largest dollar increases.
This matters for anyone comparing neighborhoods on cost, not just price. A lower purchase price does not automatically mean a gentler tax trajectory. What actually predicts your future bill is whether the neighborhood tends to run ahead of or behind the citywide valuation trend, because that trend compounds every two years regardless of what the state legislature does to the rate.
What This Means If You're Comparing Denver Neighborhoods Right Now
Denver's median annual property tax bill sits at roughly $3,071 on a median home value of about $636,400, an effective rate near 0.48 percent, according to SmartAsset's Colorado tax data. The mill levy varies by taxing district, and the valuation trend varies by neighborhood.
If you are weighing two Denver neighborhoods against each other, the honest question is not just "what does the median home cost today." It is "which side of the valuation trend has this neighborhood been on for the last two cycles, and is that likely to hold." A neighborhood on the rising side, like Cherry Creek or Country Club, will likely keep compounding both value and tax bill together. A neighborhood on the flat or falling side may see gentler compounding for now, though the next reassessment in 2027 could easily move in the opposite direction, since these cycles have swung both ways before.
If you are buying rather than just comparing, there is a second, more immediate trap worth knowing about. Lenders typically build a new buyer's initial escrow estimate off the seller's existing tax bill rather than the reassessed value tied to the purchase. Once the county issues the real bill under the new ownership, the escrow account can come up short, and the lender spreads that shortfall across the following year's payments. Asking a lender directly whether escrow was built on the reassessed number, not the seller's old bill, is a fair question to ask before closing.
A Short FAQ
Does a lower home price in Denver mean a lower property tax bill? Not automatically. The rate and mill levy apply proportionally to whatever a home is valued at, so a lower-priced home in a neighborhood with a rising valuation trend can see its bill climb faster, in percentage terms, than a higher-priced home in a neighborhood where values are flat or falling.
When is the next reassessment? AppealDesk says Colorado revalues real property every odd-numbered year. The 2025 reassessment set the values behind both the 2025 and 2026 tax bills. The next reassessment lands in 2027, covering the 2027 and 2028 tax years, and it will use sales data from the intervening period rather than today's market.
Will my tax bill match the seller's when I buy a home? Not necessarily, and the mismatch is a common source of first-year sticker shock for new owners. The bill you inherit is based on the county's assessed value for that specific property, which can differ meaningfully from what the seller was paying, especially if the home was under-assessed relative to its neighborhood for years.
Are there exemptions worth checking? Colorado offers a senior exemption for owners 65 and older who have owned and occupied a home for ten consecutive years, a disabled veteran exemption for those with a 100 percent permanent disability rating. Applications and deadlines are handled through the Denver County Assessor's Office.
Property tax mechanics are not the deciding factor in where anyone should live. But when two Denver neighborhoods look similar on price, the valuation trend underneath each one is a real difference, and it is one buyers rarely think to ask about until the first bill arrives. If you are trying to read that trend for a specific block or building, or just want a second set of eyes on what a neighborhood's carrying costs actually look like over time, Gather Realty is happy to walk through it with you.
This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.
