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Single Family ResidenceResidential
$504,968$375 / 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 93How 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 $251,000 on Apr 2, 2014

9879 W 99TH AVE

WESTMINSTER, CO 80021
3
Beds
3
Baths
1,348 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.
1985
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$505K
$468K low$542K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$251,000 · Apr 2, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,550 (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.$31,232 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,126
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$21,106
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$31,718
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$499,708

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
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.2014
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.Frame (Unspecified)
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 160 ft²Patio · 160 ft²

Transaction History(7)

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
Wayne Carle Middle SchoolB
Middle · Grades 6–8 · 0.3 mi
E
Lukas Elementary SchoolB
Elementary · Grades KG–5 · 0.3 mi
H
Standley Lake High SchoolA
High · Grades 9–12 · 0.7 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

9879 W 99th 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 71% of homes in Jefferson County
  • Has a smaller lot than 86% of homes in Walnut Grove
  • Newer than 72% of homes in Walnut Grove

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
$284K$966K

This home is worth more than 33% 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$504,968
CheaperTypical $557,595Pricier

Pricier than 33% of homes nearby

Price per ft²$375
CheaperTypical $364Pricier

Pricier than 56% of homes nearby

Living area1,348 ft²
SmallerTypical 1,523 ft²Bigger

Bigger than 38% of homes nearby

Lot size0.11 ac
SmallerTypical 0.16 acBigger

Bigger than 19% of homes nearby

Year built1985
OlderTypical 1983Newer

Newer than 60% of homes nearby

How 9879 W 99th Ave ranks against every home in each area.
MeasureThis homeWalnut GroveBroomfield 80021Jefferson County
Estimated valuepricier than$504,96834% of homes33% of homes29% of homes
Price per ft²pricier than$37549% of homes56% of homes49% of homes
Living areabigger than1,348 ft²42% of homes38% of homes36% of homes
Lot sizebigger than0.11 ac14% of homes19% of homes15% of homes
Year builtnewer than198572% of homes60% of homes67% of homes

About 9879 W 99th Ave

How much is 9879 W 99th Ave, Westminster, CO worth?

The TopHap Estimate for 9879 W 99th Ave, Westminster, CO is $504,968 as of Sep 24, 2026. The likely range is $467,503 to $542,433. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9879 W 99th Ave, Westminster, CO last sell?

9879 W 99th Ave, Westminster, CO last sold on Apr 2, 2014 for $251,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 9879 W 99th Ave, Westminster, CO?

9879 W 99th Ave, Westminster, CO has 3 bedrooms, 3 bathrooms, 1,348 square feet of living space and a 0.11-acre lot.

When was 9879 W 99th Ave, Westminster, CO built?

9879 W 99th Ave, Westminster, CO was built in 1985, making it 41 years old. It is a split level home. The building has 2 stories.

What schools serve 9879 W 99th Ave, Westminster, CO?

9879 W 99th Ave, Westminster, CO is assigned to Wayne Carle Middle School (middle), rated B; Lukas Elementary School (elementary), 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 9879 W 99th Ave, Westminster, CO compare to other homes in Broomfield 80021?

Among the 9,713 homes in Broomfield 80021, it is worth more than 33% of them ($504,968 against a typical $557,595), its price per square foot is higher than 56% of them ($375 against a typical $364), it is bigger than 38% of them (1,348 ft² against a typical 1,523 ft²), its lot is bigger than 19% of them (0.11 ac against a typical 0.16 ac) and it is newer than 60% of them (1985 against a typical 1983). Measured against all of Jefferson County, it is worth more than 29% 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 9879 W 99th Ave, Westminster, CO?

The 2025 property tax bill for 9879 W 99th Ave, Westminster, CO was $2,550. The county assessed it at $31,232.

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