Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$391,140$378 / 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 $162,000 on Jul 8, 2014

11143 FOREST AVE

THORNTON, CO 80233
2
Beds
1
Baths
1,034 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.
1979
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
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

$391K
$375K low$407K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$162,000 · Jul 8, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,132 (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.$26,690 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,940
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$20,750
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$30,020
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$427,000

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.42
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
75
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
17
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
66
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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
CountyAdams
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.Baseboard
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 · 120 ft²

Transaction History(4)

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(2)

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

E
Riverdale Elementary SchoolC+
Elementary · Grades PK–5 · 0.4 mi
M
Shadow Ridge Middle SchoolC-
Middle · Grades 6–8 · 1.7 mi
H
Thornton High SchoolD+
High · Grades 9–12 · 3.5 mi

District: Northglenn-Thornton School District 12

Neighborhood · ZIP 80233These 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.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.41

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.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.51,691
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,551 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,509
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$100,105
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

Do you own this home?
Claim this home

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

11143 Forest 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 85% of homes in Grange Creek
  • Costs more per square foot than 86% of homes in Grange Creek
  • Smaller than 85% of homes in Grange Creek
  • Has a smaller lot than 87% of homes in Grange Creek
  • Among the newest homes in Grange Creek

What homes are worth in Denver 80233

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

This home
$299K$625K

This home is worth more than 22% of homes in Denver 80233.

How it measures up in Denver 80233

The dot is this home. The mark in the middle is the typical home in Denver 80233.

Estimated value$391,140
CheaperTypical $451,784Pricier

Pricier than 22% of homes nearby

Price per ft²$378
CheaperTypical $293Pricier

Pricier than 79% of homes nearby

Living area1,034 ft²
SmallerTypical 1,490 ft²Bigger

Bigger than 20% of homes nearby

Lot size0.16 ac
SmallerTypical 0.17 acBigger

Bigger than 35% of homes nearby

Year built1979
OlderTypical 1977Newer

Newer than 60% of homes nearby

How 11143 Forest Ave ranks against every home in each area.
MeasureThis homeGrange CreekDenver 80233Adams County
Estimated valuepricier than$391,14015% of homes22% of homes23% of homes
Price per ft²pricier than$37886% of homes79% of homes84% of homes
Living areabigger than1,034 ft²15% of homes20% of homes16% of homes
Lot sizebigger than0.16 ac13% of homes35% of homes48% of homes
Year builtnewer than1979almost all homes60% of homes36% of homes

About 11143 Forest Ave

How much is 11143 Forest Ave, Thornton, CO worth?

The TopHap Estimate for 11143 Forest Ave, Thornton, CO is $391,140 as of Sep 24, 2026. The likely range is $375,059 to $407,221. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 11143 Forest Ave, Thornton, CO last sell?

11143 Forest Ave, Thornton, CO last sold on Jul 8, 2014 for $162,000, according to the county's recorded deed.

How big is 11143 Forest Ave, Thornton, CO?

11143 Forest Ave, Thornton, CO has 2 bedrooms, 1 bathrooms, 1,034 square feet of living space and a 0.16-acre lot.

When was 11143 Forest Ave, Thornton, CO built?

11143 Forest Ave, Thornton, CO was built in 1979, making it 47 years old. It is a ranch home. The building has 1 story.

What schools serve 11143 Forest Ave, Thornton, CO?

11143 Forest Ave, Thornton, CO is assigned to Riverdale Elementary School (elementary), rated C+; Shadow Ridge Middle School (middle), rated C-; Thornton High School (high), rated D+. All sit in Northglenn-Thornton School District 12. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 11143 Forest Ave, Thornton, CO compare to other homes in Denver 80233?

Among the 13,052 homes in Denver 80233, it is worth more than 22% of them ($391,140 against a typical $451,784), its price per square foot is higher than 79% of them ($378 against a typical $293), it is bigger than 20% of them (1,034 ft² against a typical 1,490 ft²), its lot is bigger than 35% of them (0.16 ac against a typical 0.17 ac) and it is newer than 60% of them (1979 against a typical 1977). Measured against all of Adams County, it is worth more than 23% 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 11143 Forest Ave, Thornton, CO?

The 2025 property tax bill for 11143 Forest Ave, Thornton, CO was $1,132. The county assessed it at $26,690.

More homes on Forest Ave

Closest homes

More homes in Thornton 80233

Assigned schools

Explore the area

See this home in context

Open 11143 Forest Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map