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Single Family ResidenceResidential
$1,186,589$548 / 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 94How 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 $560,000 on Feb 20, 2015

10085 ALLISON ST

BROOMFIELD, CO 80021
3
Beds
7 / 3
Baths
2,164 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.
0.71 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$1.2M
$1.1M low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$560,000 · Feb 20, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,376 (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.$63,999 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,471
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$44,528
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$63,885
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,023,982

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.Ranch
CountyJEFFERSON
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2017
Lot (acres)The size of the land the home sits on, from county records.0.71
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 275 ft²

Transaction History(1)

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.

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 · 0.8 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

10085 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.

  • Among the most valuable homes in Broomfield 80021
  • Costs more per square foot than 96% of homes in Broomfield 80021
  • Bigger than 83% of homes in Broomfield 80021
  • Has a bigger lot than 97% of homes in Broomfield 80021
  • Newer than 72% 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 almost all 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$1,186,589
CheaperTypical $557,864Pricier

Pricier than almost all homes nearby

Price per ft²$548
CheaperTypical $358Pricier

Pricier than 96% of homes nearby

Living area2,164 ft²
SmallerTypical 1,543 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.71 ac
SmallerTypical 0.16 acBigger

Bigger than 97% of homes nearby

Year built1988
OlderTypical 1983Newer

Newer than 64% of homes nearby

How 10085 Allison St ranks against every home in each area.
MeasureThis homeMandalay GardensBroomfield 80021Jefferson County
Estimated valuepricier than$1,186,58984% of homesalmost all homes93% of homes
Price per ft²pricier than$54888% of homes96% of homes89% of homes
Living areabigger than2,164 ft²57% of homes83% of homes75% of homes
Lot sizebigger than0.71 ac15% of homes97% of homes89% of homes
Year builtnewer than198872% of homes64% of homes69% of homes

About 10085 Allison St

How much is 10085 Allison St, Broomfield, CO worth?

The TopHap Estimate for 10085 Allison St, Broomfield, CO is $1,186,589 as of Sep 24, 2026. The likely range is $1,118,378 to $1,254,800. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10085 Allison St, Broomfield, CO last sell?

10085 Allison St, Broomfield, CO last sold on Feb 20, 2015 for $560,000, according to the county's recorded deed.

How big is 10085 Allison St, Broomfield, CO?

10085 Allison St, Broomfield, CO has 3 bedrooms, 7 bathrooms, 2,164 square feet of living space and a 0.71-acre lot.

When was 10085 Allison St, Broomfield, CO built?

10085 Allison St, Broomfield, CO was built in 1988, making it 38 years old. It is a ranch home. The building has 1 story.

What schools serve 10085 Allison St, Broomfield, CO?

10085 Allison St, Broomfield, 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 10085 Allison St, Broomfield, CO compare to other homes in Broomfield 80021?

Among the 9,724 homes in Broomfield 80021, it is worth more than almost all of them ($1,186,589 against a typical $557,864), its price per square foot is higher than 96% of them ($548 against a typical $358), it is bigger than 83% of them (2,164 ft² against a typical 1,543 ft²), its lot is bigger than 97% of them (0.71 ac against a typical 0.16 ac) and it is newer than 64% of them (1988 against a typical 1983). Measured against all of Jefferson County, it is worth more than 93% 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 10085 Allison St, Broomfield, CO?

The 2025 property tax bill for 10085 Allison St, Broomfield, CO was $6,376. The county assessed it at $63,999.

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Assigned schools

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