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Single Family ResidenceResidential
$896,692$311 / 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 Aug 30, 2026

9129 FOREST ST

FIRESTONE, CO 80504
5
Beds
5
Baths
2,886 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.
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
2007
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$897K
$858K low$935K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,779 (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.$57,750 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$10,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$47,750
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$57,750
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$923,992

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
CountyWeld
Lot (acres)The size of the land the home sits on, from county records.0.29
ConstructionThe main material the home's frame and walls are built from.Wood (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
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 · 715 ft²

Transaction History(2)

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.

M
Coal Ridge Middle SchoolB-
Middle · Grades 6–8 · 1.6 mi
H
Frederick Senior High SchoolB+
High · Grades 9–12 · 2.5 mi
E
Legacy Elementary SchoolC+
Elementary · Grades PK–5 · 2.5 mi

District: St. Vrain Valley School District Re 1j

Neighborhood · ZIP 80504These 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.67
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.5.2%
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.64,420
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.637 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,047
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,711
Average tempThe average temperature here across a full year.49°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

9129 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 94% of homes in Weld County
  • Costs more per square foot than 69% of homes in Longmont 80504
  • Bigger than 92% of homes in Weld County
  • Has a bigger lot than 83% of homes in Longmont 80504
  • Newer than 73% of homes in Longmont 80504

What homes are worth in Longmont 80504

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

This home
$330K$1.7M

This home is worth more than 90% of homes in Longmont 80504.

How it measures up in Longmont 80504

The dot is this home. The mark in the middle is the typical home in Longmont 80504.

Estimated value$896,692
CheaperTypical $573,546Pricier

Pricier than 90% of homes nearby

Price per ft²$311
CheaperTypical $278Pricier

Pricier than 69% of homes nearby

Living area2,886 ft²
SmallerTypical 2,016 ft²Bigger

Bigger than 81% of homes nearby

Lot size0.29 ac
SmallerTypical 0.17 acBigger

Bigger than 83% of homes nearby

Year built2007
OlderTypical 2002Newer

Newer than 73% of homes nearby

How 9129 Forest St ranks against every home in each area.
MeasureThis homeLongmont 80504Weld County
Estimated valuepricier than$896,69290% of homes94% of homes
Price per ft²pricier than$31169% of homes61% of homes
Living areabigger than2,886 ft²81% of homes92% of homes
Lot sizebigger than0.29 ac83% of homes80% of homes
Year builtnewer than200773% of homes67% of homes

About 9129 Forest St

How much is 9129 Forest St, Firestone, CO worth?

The TopHap Estimate for 9129 Forest St, Firestone, CO is $896,692 as of Aug 30, 2026. The likely range is $858,417 to $934,967. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 9129 Forest St, Firestone, CO last sell?

9129 Forest St, Firestone, CO last sold on Aug 18, 2021, according to the county's recorded deed.

How big is 9129 Forest St, Firestone, CO?

9129 Forest St, Firestone, CO has 5 bedrooms, 5 bathrooms, 2,886 square feet of living space and a 0.29-acre lot.

When was 9129 Forest St, Firestone, CO built?

9129 Forest St, Firestone, CO was built in 2007, making it 19 years old. It is a ranch home. The building has 1 story.

What schools serve 9129 Forest St, Firestone, CO?

9129 Forest St, Firestone, CO is assigned to Coal Ridge Middle School (middle), rated B-; Frederick Senior High School (high), rated B+; Legacy Elementary School (elementary), rated C+. All sit in St. Vrain Valley School District Re 1j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9129 Forest St, Firestone, CO compare to other homes in Longmont 80504?

Among the 21,648 homes in Longmont 80504, it is worth more than 90% of them ($896,692 against a typical $573,546), its price per square foot is higher than 69% of them ($311 against a typical $278), it is bigger than 81% of them (2,886 ft² against a typical 2,016 ft²), its lot is bigger than 83% of them (0.29 ac against a typical 0.17 ac) and it is newer than 73% of them (2007 against a typical 2002). Measured against all of Weld County, it is worth more than 94% 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 9129 Forest St, Firestone, CO?

The 2025 property tax bill for 9129 Forest St, Firestone, CO was $5,779. The county assessed it at $57,750.

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