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Single Family ResidenceResidential
$1,047,971$492 / 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 95How 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
Last sold for $195,000 on Dec 18, 2000

10420 AMMONS ST

WESTMINSTER, CO 80021
3
Beds
3
Baths
2,128 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.
0.96 ac
Lot SizeThe size of the land the home sits on, from county records.
1960
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$1M
$1M low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$195,000 · Dec 18, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,255 (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.$62,658 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$33,735
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$28,923
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$62,658
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$990,201

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.17 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.1 percent flood zone

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.2003
Lot (acres)The size of the land the home sits on, from county records.0.96
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Forced Air
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

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.

H
Standley Lake High SchoolB
High · Grades 9–12 · 0.8 mi
E
Semper Elementary SchoolC
Elementary · Grades PK–5 · 1.0 mi
M
Mandalay Middle SchoolB+
Middle · Grades 6–8 · 1.1 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

10420 Ammons 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 83% of homes in Broomfield 80021
  • Bigger than 83% of homes in Broomfield 80021
  • Has a bigger lot than 97% of homes in Broomfield 80021
  • Among the oldest 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
$300K$965K

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$1,047,971
CheaperTypical $557,428Pricier

Pricier than almost all homes nearby

Price per ft²$492
CheaperTypical $375Pricier

Pricier than 83% of homes nearby

Living area2,128 ft²
SmallerTypical 1,452 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.96 ac
SmallerTypical 0.16 acBigger

Bigger than 97% of homes nearby

Year built1960
OlderTypical 1983Newer

Older than almost all homes nearby

How 10420 Ammons St ranks against every home in each area.
MeasureThis homeMandalay GardensBroomfield 80021Jefferson County
Estimated valuepricier than$1,047,97168% of homesalmost all homes89% of homes
Price per ft²pricier than$49260% of homes83% of homes79% of homes
Living areabigger than2,128 ft²57% of homes83% of homes76% of homes
Lot sizebigger than0.96 ac26% of homes97% of homes90% of homes
Year builtnewer than196031% of homesalmost no homes17% of homes

About 10420 Ammons St

How much is 10420 Ammons St, Westminster, CO worth?

The TopHap Estimate for 10420 Ammons St, Westminster, CO is $1,047,971 as of Aug 30, 2026. The likely range is $1,000,559 to $1,095,383. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10420 Ammons St, Westminster, CO last sell?

10420 Ammons St, Westminster, CO last sold on Dec 18, 2000 for $195,000, according to the county's recorded deed.

How big is 10420 Ammons St, Westminster, CO?

10420 Ammons St, Westminster, CO has 3 bedrooms, 3 bathrooms, 2,128 square feet of living space and a 0.96-acre lot.

When was 10420 Ammons St, Westminster, CO built?

10420 Ammons St, Westminster, CO was built in 1960, making it 66 years old. It is a ranch home. The building has 1 story.

What schools serve 10420 Ammons St, Westminster, CO?

10420 Ammons St, Westminster, CO is assigned to Standley Lake High School (high), rated B; Semper Elementary School (elementary), rated C; Mandalay Middle School (middle), 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 10420 Ammons St, Westminster, CO compare to other homes in Broomfield 80021?

Among the 9,708 homes in Broomfield 80021, it is worth more than almost all of them ($1,047,971 against a typical $557,428), its price per square foot is higher than 83% of them ($492 against a typical $375), it is bigger than 83% of them (2,128 ft² against a typical 1,452 ft²), its lot is bigger than 97% of them (0.96 ac against a typical 0.16 ac) and it is newer than almost none of them (1960 against a typical 1983). Measured against all of Jefferson County, it is worth more than 89% 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 10420 Ammons St, Westminster, CO?

The 2024 property tax bill for 10420 Ammons St, Westminster, CO was $5,255. The county assessed it at $62,658.

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