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Single Family ResidenceResidential
$494,082$247 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

10521 DEVONSHIRE ST

FIRESTONE, CO 80504
4
Beds
3
Baths
2,002 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$494K
$472K low$517K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,622 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$32,280 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,380
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$25,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$32,280
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$516,422

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWeld
Lot (acres)The size of the land the home sits on, from county records.0.11
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Built-in
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 234 ft²

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

M
Coal Ridge Middle SchoolB-
Middle · Grades 6–8 · 0.2 mi
E
Prairie Ridge Elementary SchoolB-
Elementary · Grades PK–5 · 0.3 mi
H
Frederick Senior High SchoolB+
High · Grades 9–12 · 3.6 mi

District: St. Vrain Valley School District Re 1j

Neighborhood · ZIP 80504These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.67
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.64,420
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.637 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,047
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,711
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.14 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.69%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

10521 Devonshire St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 75% of homes in Longmont 80504
  • Costs less per square foot than 70% of homes in Longmont 80504
  • Bigger than 66% of homes in Weld County
  • Has a smaller lot than 89% of homes in Weld County

What homes are worth in Longmont 80504

Each bar is how many homes fall in that price range. The marker is this home.

This home
$320K$1.7M

This home is worth more than 25% of homes in Longmont 80504.

How it measures up in Longmont 80504

The dot is this home. The mark in the middle is the typical home in Longmont 80504.

Estimated value$494,082
CheaperTypical $570,952Pricier

Pricier than 25% of homes nearby

Price per ft²$247
CheaperTypical $276Pricier

Pricier than 30% of homes nearby

Living area2,002 ft²
SmallerTypical 2,033 ft²Bigger

Bigger than 48% of homes nearby

Lot size0.11 ac
SmallerTypical 0.17 acBigger

Bigger than 16% of homes nearby

Year built2002
OlderTypical 2002Newer

Newer than 55% of homes nearby

How 10521 Devonshire St ranks against every home in each area.
MeasureThis homeLongmont 80504Weld County
Estimated valuepricier than$494,08225% of homes53% of homes
Price per ft²pricier than$24730% of homes31% of homes
Living areabigger than2,002 ft²48% of homes66% of homes
Lot sizebigger than0.11 ac16% of homes11% of homes
Year builtnewer than200255% of homes53% of homes

About 10521 Devonshire St

How much is 10521 Devonshire St, Firestone, CO worth?

The TopHap Estimate for 10521 Devonshire St, Firestone, CO is $494,082 as of Sep 24, 2026. The likely range is $471,642 to $516,522. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 10521 Devonshire St, Firestone, CO?

10521 Devonshire St, Firestone, CO has 4 bedrooms, 3 bathrooms, 2,002 square feet of living space and a 0.11-acre lot.

When was 10521 Devonshire St, Firestone, CO built?

10521 Devonshire St, Firestone, CO was built in 2002, making it 24 years old. The building has 2 stories.

What schools serve 10521 Devonshire St, Firestone, CO?

10521 Devonshire St, Firestone, CO is assigned to Coal Ridge Middle School (middle), rated B-; Prairie Ridge Elementary School (elementary), rated B-; Frederick Senior High School (high), rated B+. All sit in St. Vrain Valley School District Re 1j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 10521 Devonshire St, Firestone, CO compare to other homes in Longmont 80504?

Among the 21,632 homes in Longmont 80504, it is worth more than 25% of them ($494,082 against a typical $570,952), its price per square foot is higher than 30% of them ($247 against a typical $276), it is bigger than 48% of them (2,002 ft² against a typical 2,033 ft²), its lot is bigger than 16% of them (0.11 ac against a typical 0.17 ac) and it is newer than 55% of them (2002 against a typical 2002). Measured against all of Weld County, it is worth more than 53% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 10521 Devonshire St, Firestone, CO?

The 2025 property tax bill for 10521 Devonshire St, Firestone, CO was $3,622. The county assessed it at $32,280.

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