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Single Family ResidenceResidential
$899,899$309 / 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 91How 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
Last sold for $153,000 on Jun 30, 1988

10055 ALLISON ST

WESTMINSTER, CO 80021
4
Beds
3
Baths
2,914 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.
0.7 ac
Lot SizeThe size of the land the home sits on, from county records.
1989
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$900K
$821K low$979K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$153,000 · Jun 30, 1988

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,061 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$53,901 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$22,841
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$31,060
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$53,901
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$859,488

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Split Level
CountyJefferson
Lot (acres)The size of the land the home sits on, from county records.0.70
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Forced Air
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Semper Elementary SchoolD
Elementary · Grades PK–5 · 0.6 mi
M
Mandalay Middle SchoolB-
Middle · Grades 6–8 · 0.8 mi
H
Standley Lake High SchoolA
High · Grades 9–12 · 0.9 mi

District: Jefferson County School District R-1

Neighborhood · ZIP 80021These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.44

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.8%
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.35,343
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,814 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,703
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,519
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.16 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

10055 Allison 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 more than 96% of homes in Broomfield 80021
  • Costs less per square foot than 87% of homes in Mandalay Gardens
  • Bigger than 96% of homes in Broomfield 80021
  • Has a bigger lot than 97% of homes in Broomfield 80021
  • Newer than 75% of homes in Mandalay Gardens

What homes are worth in Broomfield 80021

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

This home
$282K$973K

This home is worth more than 96% of homes in Broomfield 80021.

How it measures up in Broomfield 80021

The dot is this home. The mark in the middle is the typical home in Broomfield 80021.

Estimated value$899,899
CheaperTypical $557,864Pricier

Pricier than 96% of homes nearby

Price per ft²$309
CheaperTypical $358Pricier

Pricier than 20% of homes nearby

Living area2,914 ft²
SmallerTypical 1,543 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.7 ac
SmallerTypical 0.16 acBigger

Bigger than 97% of homes nearby

Year built1989
OlderTypical 1983Newer

Newer than 65% of homes nearby

How 10055 Allison St ranks against every home in each area.
MeasureThis homeMandalay GardensBroomfield 80021Jefferson County
Estimated valuepricier than$899,89949% of homes96% of homes83% of homes
Price per ft²pricier than$30913% of homes20% of homes20% of homes
Living areabigger than2,914 ft²78% of homes96% of homes92% of homes
Lot sizebigger than0.7 ac12% of homes97% of homes89% of homes
Year builtnewer than198975% of homes65% of homes70% of homes

About 10055 Allison St

How much is 10055 Allison St, Westminster, CO worth?

The TopHap Estimate for 10055 Allison St, Westminster, CO is $899,899 as of Sep 24, 2026. The likely range is $820,906 to $978,892. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10055 Allison St, Westminster, CO last sell?

10055 Allison St, Westminster, CO last sold on Jun 30, 1988 for $153,000, according to the county's recorded deed.

How big is 10055 Allison St, Westminster, CO?

10055 Allison St, Westminster, CO has 4 bedrooms, 3 bathrooms, 2,914 square feet of living space and a 0.70-acre lot.

When was 10055 Allison St, Westminster, CO built?

10055 Allison St, Westminster, CO was built in 1989, making it 37 years old. It is a split level home. The building has 2 stories.

What schools serve 10055 Allison St, Westminster, CO?

10055 Allison St, Westminster, CO is assigned to Semper Elementary School (elementary), rated D; Mandalay Middle School (middle), rated B-; Standley Lake High School (high), rated A. All sit in Jefferson County School District R-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 10055 Allison St, Westminster, CO compare to other homes in Broomfield 80021?

Among the 9,724 homes in Broomfield 80021, it is worth more than 96% of them ($899,899 against a typical $557,864), its price per square foot is higher than 20% of them ($309 against a typical $358), it is bigger than 96% of them (2,914 ft² against a typical 1,543 ft²), its lot is bigger than 97% of them (0.7 ac against a typical 0.16 ac) and it is newer than 65% of them (1989 against a typical 1983). Measured against all of Jefferson County, it is worth more than 83% 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 10055 Allison St, Westminster, CO?

The 2024 property tax bill for 10055 Allison St, Westminster, CO was $5,061. The county assessed it at $53,901.

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