Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$536,723$545 / 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 Aug 30, 2026

8430 W 91ST AVE

WESTMINSTER, CO 80021
3
Beds
2
Baths
984 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.
0.21 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

$537K
$516K low$557K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,519 (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.$30,855 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,366
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$18,489
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$30,776
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$493,680

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.20
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.
66
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

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.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.2018
Lot (acres)The size of the land the home sits on, from county records.0.21
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.Package
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 264 ft²

Transaction History(3)

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
Lukas Elementary SchoolC
Elementary · Grades KG–5 · 0.9 mi
M
Wayne Carle Middle SchoolB
Middle · Grades 6–8 · 1.5 mi
H
Standley Lake High SchoolB
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%

Owner Tools

Do you own this home?
Claim this home

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

8430 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 65% of homes in Jefferson County
  • Costs more per square foot than 91% of homes in Broomfield 80021
  • Smaller than 87% of homes in Jefferson County
  • Has a bigger lot than 82% 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
$299K$981K

This home is worth more than 43% 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$536,723
CheaperTypical $558,239Pricier

Pricier than 43% of homes nearby

Price per ft²$545
CheaperTypical $374Pricier

Pricier than 91% of homes nearby

Living area984 ft²
SmallerTypical 1,451 ft²Bigger

Bigger than 18% of homes nearby

Lot size0.21 ac
SmallerTypical 0.16 acBigger

Bigger than 81% of homes nearby

Year built1973
OlderTypical 1983Newer

Newer than 6% of homes nearby

How 8430 W 91st Ave ranks against every home in each area.
MeasureThis homeKings MillBroomfield 80021Jefferson County
Estimated valuepricier than$536,72355% of homes43% of homes35% of homes
Price per ft²pricier than$54585% of homes91% of homes87% of homes
Living areabigger than984 ft²31% of homes18% of homes13% of homes
Lot sizebigger than0.21 ac82% of homes81% of homes54% of homes
Year builtnewer than197317% of homes6% of homes40% of homes

About 8430 W 91st Ave

How much is 8430 W 91st Ave, Westminster, CO worth?

The TopHap Estimate for 8430 W 91st Ave, Westminster, CO is $536,723 as of Aug 30, 2026. The likely range is $516,080 to $557,366. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8430 W 91st Ave, Westminster, CO last sell?

8430 W 91st Ave, Westminster, CO last sold on Jan 5, 2023, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8430 W 91st Ave, Westminster, CO?

8430 W 91st Ave, Westminster, CO has 3 bedrooms, 2 bathrooms, 984 square feet of living space and a 0.21-acre lot.

When was 8430 W 91st Ave, Westminster, CO built?

8430 W 91st Ave, Westminster, CO was built in 1973, making it 53 years old. It is a ranch home. The building has 1 story.

What schools serve 8430 W 91st Ave, Westminster, CO?

8430 W 91st Ave, Westminster, CO is assigned to Lukas Elementary School (elementary), rated C; Wayne Carle Middle School (middle), rated B; Standley Lake High School (high), rated B. All sit in Jefferson County School District R-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8430 W 91st Ave, Westminster, CO compare to other homes in Broomfield 80021?

Among the 9,709 homes in Broomfield 80021, it is worth more than 43% of them ($536,723 against a typical $558,239), its price per square foot is higher than 91% of them ($545 against a typical $374), it is bigger than 18% of them (984 ft² against a typical 1,451 ft²), its lot is bigger than 81% of them (0.21 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 35% 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 8430 W 91st Ave, Westminster, CO?

The 2025 property tax bill for 8430 W 91st Ave, Westminster, CO was $2,519. The county assessed it at $30,855.

More homes on W 91st Ave

Closest homes

More homes in Westminster 80021

Assigned schools

Explore the area

See this home in context

Open 8430 W 91st Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map