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Single Family ResidenceResidential
$518,932$243 / 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 Sep 24, 2026
Last sold for $170,000 on Dec 13, 2002

12258 MONROE DR

THORNTON, CO 80241
4
Beds
1
Baths
2,138 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.
0.16 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.
2
StoriesHow many floors the home has above ground.
6
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

$519K
$497K low$540K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$170,000 · Dec 13, 2002

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,317 (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.$31,070 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,130
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$25,940
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$34,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$497,000

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.15 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.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.Split Level
CountyAdams
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.0.16
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
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 · 600 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
Stellar Elementary SchoolB-
Elementary · Grades KG–5 · 0.2 mi
M
Century Middle SchoolC+
Middle · Grades 6–8 · 1.5 mi
H
Mountain Range High SchoolB
High · Grades 9–12 · 2.7 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%

Owner Tools

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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

12258 Monroe Dr 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.

  • Costs less per square foot than 88% of homes in Thornton 80241
  • Bigger than 77% of homes in Adams County
  • Among the oldest homes in Thornton 80241

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
$327K$740K

This home is worth more than 51% 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$518,932
CheaperTypical $515,697Pricier

Pricier than 51% of homes nearby

Price per ft²$243
CheaperTypical $296Pricier

Pricier than 12% of homes nearby

Living area2,138 ft²
SmallerTypical 1,696 ft²Bigger

Bigger than 76% of homes nearby

Lot size0.16 ac
SmallerTypical 0.15 acBigger

Bigger than 64% of homes nearby

Year built1973
OlderTypical 1996Newer

Older than almost all homes nearby

How 12258 Monroe Dr ranks against every home in each area.
MeasureThis homeThornton 80241Adams County
Estimated valuepricier than$518,93251% of homes63% of homes
Price per ft²pricier than$24312% of homes20% of homes
Living areabigger than2,138 ft²76% of homes77% of homes
Lot sizebigger than0.16 ac64% of homes48% of homes
Year builtnewer than1973almost no homes30% of homes

About 12258 Monroe Dr

How much is 12258 Monroe Dr, Thornton, CO worth?

The TopHap Estimate for 12258 Monroe Dr, Thornton, CO is $518,932 as of Sep 24, 2026. The likely range is $497,450 to $540,414. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12258 Monroe Dr, Thornton, CO last sell?

12258 Monroe Dr, Thornton, CO last sold on Dec 13, 2002 for $170,000, according to the county's recorded deed.

How big is 12258 Monroe Dr, Thornton, CO?

12258 Monroe Dr, Thornton, CO has 4 bedrooms, 1 bathrooms, 2,138 square feet of living space and a 0.16-acre lot.

When was 12258 Monroe Dr, Thornton, CO built?

12258 Monroe Dr, Thornton, CO was built in 1973, making it 53 years old. It is a split level home. The building has 2 stories.

What schools serve 12258 Monroe Dr, Thornton, CO?

12258 Monroe Dr, Thornton, CO is assigned to Stellar Elementary School (elementary), rated B-; Century Middle School (middle), rated C+; Mountain Range 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 12258 Monroe Dr, Thornton, CO compare to other homes in Thornton 80241?

Among the 10,624 homes in Thornton 80241, it is worth more than 51% of them ($518,932 against a typical $515,697), its price per square foot is higher than 12% of them ($243 against a typical $296), it is bigger than 76% of them (2,138 ft² against a typical 1,696 ft²), its lot is bigger than 64% of them (0.16 ac against a typical 0.15 ac) and it is newer than almost none of them (1973 against a typical 1996). Measured against all of Adams County, it is worth more than 63% 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 12258 Monroe Dr, Thornton, CO?

The 2025 property tax bill for 12258 Monroe Dr, Thornton, CO was $1,317. The county assessed it at $31,070.

More homes on Monroe Dr

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Assigned schools

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