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Single Family ResidenceResidential
$505,843$316 / 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 97How 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 $155,000 on Apr 6, 1999

12120 FOREST ST

THORNTON, CO 80241
3
Beds
3
Baths
1,601 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.
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
1994
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
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.

Valuation

$506K
$493K low$519K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$155,000 · Apr 6, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,020 (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.$24,060 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$4,960
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$19,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$35,440
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$485,000

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.0.12
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 202 ft²

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.

E
Skyview Elementary SchoolC
Elementary · Grades KG–5 · 0.2 mi
M
Shadow Ridge Middle SchoolC-
Middle · Grades 6–8 · 0.4 mi
H
Horizon High SchoolB+
High · Grades 9–12 · 1.9 mi

District: Northglenn-Thornton School District 12

Neighborhood · ZIP 80241These 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.62
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.46

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.9%
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.33,822
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,945 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,072
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$123,533
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.14 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

12120 Forest 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.

  • Worth more than 68% of homes in Concord
  • Costs less per square foot than 67% of homes in Concord
  • Bigger than 69% of homes in Concord
  • Has a smaller lot than 90% of homes in Concord
  • Newer than 66% of homes in Concord

What homes are worth in Thornton 80241

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

This home
$330K$748K

This home is worth more than 44% of homes in Thornton 80241.

How it measures up in Thornton 80241

The dot is this home. The mark in the middle is the typical home in Thornton 80241.

Estimated value$505,843
CheaperTypical $516,721Pricier

Pricier than 44% of homes nearby

Price per ft²$316
CheaperTypical $297Pricier

Pricier than 64% of homes nearby

Living area1,601 ft²
SmallerTypical 1,694 ft²Bigger

Bigger than 43% of homes nearby

Lot size0.12 ac
SmallerTypical 0.15 acBigger

Bigger than 27% of homes nearby

Year built1994
OlderTypical 1996Newer

Newer than 43% of homes nearby

How 12120 Forest St ranks against every home in each area.
MeasureThis homeConcordThornton 80241Adams County
Estimated valuepricier than$505,84368% of homes44% of homes59% of homes
Price per ft²pricier than$31633% of homes64% of homes63% of homes
Living areabigger than1,601 ft²69% of homes43% of homes50% of homes
Lot sizebigger than0.12 ac10% of homes27% of homes21% of homes
Year builtnewer than199466% of homes43% of homes49% of homes

About 12120 Forest St

How much is 12120 Forest St, Thornton, CO worth?

The TopHap Estimate for 12120 Forest St, Thornton, CO is $505,843 as of Sep 24, 2026. The likely range is $492,764 to $518,922. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12120 Forest St, Thornton, CO last sell?

12120 Forest St, Thornton, CO last sold on Apr 6, 1999 for $155,000, according to the county's recorded deed.

How big is 12120 Forest St, Thornton, CO?

12120 Forest St, Thornton, CO has 3 bedrooms, 3 bathrooms, 1,601 square feet of living space and a 0.12-acre lot.

When was 12120 Forest St, Thornton, CO built?

12120 Forest St, Thornton, CO was built in 1994, making it 32 years old. The building has 2 stories.

What schools serve 12120 Forest St, Thornton, CO?

12120 Forest St, Thornton, CO is assigned to Skyview Elementary School (elementary), rated C; Shadow Ridge Middle School (middle), rated C-; Horizon High School (high), rated B+. All sit in Northglenn-Thornton School District 12. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12120 Forest St, Thornton, CO compare to other homes in Thornton 80241?

Among the 10,624 homes in Thornton 80241, it is worth more than 44% of them ($505,843 against a typical $516,721), its price per square foot is higher than 64% of them ($316 against a typical $297), it is bigger than 43% of them (1,601 ft² against a typical 1,694 ft²), its lot is bigger than 27% of them (0.12 ac against a typical 0.15 ac) and it is newer than 43% of them (1994 against a typical 1996). Measured against all of Adams County, it is worth more than 59% 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 12120 Forest St, Thornton, CO?

The 2025 property tax bill for 12120 Forest St, Thornton, CO was $1,020. The county assessed it at $24,060.

More homes on Forest St

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