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Single Family ResidenceResidential
$354,039$150 / 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 79How 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 $375,000 on Jul 28, 2026

8340 MASON CIR

WESTMINSTER, CO 80031
5
Beds
2
Baths
2,355 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.
Pre-foreclosure (NTS)A foreclosure notice on this home is currently active. Many are worked out before any auction happens.
Auction scheduled for Sep 16, 2026.

Valuation

$354K
$280K low$428K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$375,000 · Jul 28, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,194 (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.$35,840 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,120
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$29,720
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$32,940
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$527,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyADAMS
Lot (acres)The size of the land the home sits on, from county records.0.28
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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
ViewThe type of view from the property, or another feature of the site that affects value.Sound
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 336 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.

Foreclosure Filings(1)

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

M
Shaw Heights Middle SchoolC-
Middle · Grades 6–8 · 0.6 mi
E
Mesa Elementary SchoolD+
Elementary · Grades PK–5 · 1.0 mi
H
Westminster High SchoolB-
High · Grades 9–12 · 1.9 mi

District: Westminster School District 50

Neighborhood · ZIP 80031These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.48

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.6%
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.40,182
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,768 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,207
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,051
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.15 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

8340 Mason Cir 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 96% of homes in Shaw Heights
  • Among the lowest price per square foot in Shaw Heights
  • Bigger than 96% of homes in Shaw Heights
  • Has a bigger lot than 98% of homes in Shaw Heights
  • Newer than 92% of homes in Shaw Heights

What homes are worth in Westminster 80031

Each bar is how many homes fall in that price range. The marker is this home.

This home
$185K$1.1M

This home is worth more than 14% of homes in Westminster 80031.

How it measures up in Westminster 80031

The dot is this home. The mark in the middle is the typical home in Westminster 80031.

Estimated value$354,039
CheaperTypical $499,990Pricier

Pricier than 14% of homes nearby

Price per ft²$150
CheaperTypical $309Pricier

Cheaper than almost all homes nearby

Living area2,355 ft²
SmallerTypical 1,663 ft²Bigger

Bigger than 81% of homes nearby

Lot size0.28 ac
SmallerTypical 0.17 acBigger

Bigger than 88% of homes nearby

Year built1977
OlderTypical 1983Newer

Newer than 39% of homes nearby

How 8340 Mason Cir ranks against every home in each area.
MeasureThis homeShaw HeightsWestminster 80031Adams County
Estimated valuepricier than$354,0394% of homes14% of homes14% of homes
Price per ft²pricier than$150almost no homesalmost no homesalmost no homes
Living areabigger than2,355 ft²96% of homes81% of homes83% of homes
Lot sizebigger than0.28 ac98% of homes88% of homes86% of homes
Year builtnewer than197792% of homes39% of homes33% of homes

About 8340 Mason Cir

How much is 8340 Mason Cir, Westminster, CO worth?

The TopHap Estimate for 8340 Mason Cir, Westminster, CO is $354,039 as of Oct 21, 2026. The likely range is $279,800 to $428,278. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8340 Mason Cir, Westminster, CO last sell?

8340 Mason Cir, Westminster, CO last sold on Jul 28, 2026 for $375,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 8340 Mason Cir, Westminster, CO?

8340 Mason Cir, Westminster, CO has 5 bedrooms, 2 bathrooms, 2,355 square feet of living space and a 0.28-acre lot.

When was 8340 Mason Cir, Westminster, CO built?

8340 Mason Cir, Westminster, CO was built in 1977, making it 49 years old. The building has 2 stories.

What schools serve 8340 Mason Cir, Westminster, CO?

8340 Mason Cir, Westminster, CO is assigned to Shaw Heights Middle School (middle), rated C-; Mesa Elementary School (elementary), rated D+; Westminster High School (high), rated B-. All sit in Westminster School District 50. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8340 Mason Cir, Westminster, CO compare to other homes in Westminster 80031?

Among the 12,756 homes in Westminster 80031, it is worth more than 14% of them ($354,039 against a typical $499,990), its price per square foot is higher than almost none of them ($150 against a typical $309), it is bigger than 81% of them (2,355 ft² against a typical 1,663 ft²), its lot is bigger than 88% of them (0.28 ac against a typical 0.17 ac) and it is newer than 39% of them (1977 against a typical 1983). Measured against all of Adams County, it is worth more than 14% 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 8340 Mason Cir, Westminster, CO?

The 2025 property tax bill for 8340 Mason Cir, Westminster, CO was $3,194. The county assessed it at $35,840.

More homes on Mason Cir

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