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Single Family ResidenceResidential
$379,895$485 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $257,000 on Nov 22, 2016

8420 W 91ST AVE

WESTMINSTER, CO 80021
4
Beds
2
Baths
784 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1973
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$380K
$364K low$396K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$257,000 · Nov 22, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,511 (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.$30,749 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$15,478
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$15,271
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$31,986
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$491,991

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
35
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
75
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
25
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
66
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

Scores 0–100; higher = greater projected risk.

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.Bi-Level
CountyJefferson
Lot (acres)The size of the land the home sits on, from county records.0.34
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Evaporative
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

Transaction History(5)

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

Foreclosure Filings(9)

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

E
Lukas Elementary SchoolB
Elementary · Grades KG–5 · 0.9 mi
M
Wayne Carle Middle SchoolB
Middle · Grades 6–8 · 1.5 mi
H
Standley Lake High SchoolA
High · Grades 9–12 · 1.6 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

8420 W 91st Ave 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 92% of homes in Broomfield 80021
  • Costs more per square foot than 89% of homes in Broomfield 80021
  • Smaller than 98% of homes in Kings Mill
  • Has a bigger lot than 98% of homes in Kings Mill
  • Older than 94% of homes in Broomfield 80021

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$938K

This home is worth more than 8% 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$379,895
CheaperTypical $559,751Pricier

Pricier than 8% of homes nearby

Price per ft²$485
CheaperTypical $360Pricier

Pricier than 89% of homes nearby

Living area784 ft²
SmallerTypical 1,543 ft²Bigger

Bigger than 2% of homes nearby

Lot size0.34 ac
SmallerTypical 0.16 acBigger

Bigger than 94% of homes nearby

Year built1973
OlderTypical 1983Newer

Newer than 6% of homes nearby

How 8420 W 91st Ave ranks against every home in each area.
MeasureThis homeKings MillBroomfield 80021Jefferson County
Estimated valuepricier than$379,89516% of homes8% of homes12% of homes
Price per ft²pricier than$48586% of homes89% of homes81% of homes
Living areabigger than784 ft²2% of homes2% of homes3% of homes
Lot sizebigger than0.34 ac98% of homes94% of homes80% of homes
Year builtnewer than197317% of homes6% of homes39% of homes

About 8420 W 91st Ave

How much is 8420 W 91st Ave, Westminster, CO worth?

The TopHap Estimate for 8420 W 91st Ave, Westminster, CO is $379,895 as of Oct 21, 2026. The likely range is $363,506 to $396,284. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8420 W 91st Ave, Westminster, CO last sell?

8420 W 91st Ave, Westminster, CO last sold on Nov 22, 2016 for $257,000, according to the county's recorded deed.

How big is 8420 W 91st Ave, Westminster, CO?

8420 W 91st Ave, Westminster, CO has 4 bedrooms, 2 bathrooms, 784 square feet of living space and a 0.34-acre lot.

When was 8420 W 91st Ave, Westminster, CO built?

8420 W 91st Ave, Westminster, CO was built in 1973, making it 53 years old. It is a bi-level home. The building has 1 story.

What schools serve 8420 W 91st Ave, Westminster, CO?

8420 W 91st Ave, Westminster, CO is assigned to Lukas Elementary School (elementary), rated B; Wayne Carle 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 8420 W 91st Ave, Westminster, CO compare to other homes in Broomfield 80021?

Among the 9,727 homes in Broomfield 80021, it is worth more than 8% of them ($379,895 against a typical $559,751), its price per square foot is higher than 89% of them ($485 against a typical $360), it is bigger than 2% of them (784 ft² against a typical 1,543 ft²), its lot is bigger than 94% of them (0.34 ac against a typical 0.16 ac) and it is newer than 6% of them (1973 against a typical 1983). Measured against all of Jefferson County, it is worth more than 12% 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 8420 W 91st Ave, Westminster, CO?

The 2025 property tax bill for 8420 W 91st Ave, Westminster, CO was $2,511. The county assessed it at $30,749.

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