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Single Family ResidenceResidential
$579,130$270 / 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
Last sold for $441,000 on Feb 12, 2019

1240 BUTTON ROCK DR

LONGMONT, CO 80504
4
Beds
3
Baths
2,147 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1999
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
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

$579K
$556K low$602K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$441,000 · Feb 12, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,952 (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.$40,963 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$8,391
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$32,572
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$37,651
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$602,400

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.A-Frame
CountyBOULDER
Lot (acres)The size of the land the home sits on, from county records.0.15
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.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
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

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.

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

E
Fall River Elementary SchoolB
Elementary · Grades PK–5 · 0.3 mi
M
Trail Ridge Middle SchoolC-
Middle · Grades 6–8 · 0.5 mi
H
Skyline High SchoolD+
High · Grades 9–12 · 0.8 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

1240 Button Rock 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.

  • Worth more than 86% of homes in East Longmont
  • Costs less per square foot than 86% of homes in Boulder County
  • Bigger than 76% of homes in East Longmont
  • Has a smaller lot than 69% of homes in Longmont 80504
  • Newer than 79% of homes in East Longmont

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
$325K$1.6M

This home is worth more than 52% 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$579,130
CheaperTypical $572,281Pricier

Pricier than 52% of homes nearby

Price per ft²$270
CheaperTypical $278Pricier

Pricier than 44% of homes nearby

Living area2,147 ft²
SmallerTypical 2,016 ft²Bigger

Bigger than 57% of homes nearby

Lot size0.15 ac
SmallerTypical 0.17 acBigger

Bigger than 31% of homes nearby

Year built1999
OlderTypical 2002Newer

Newer than 36% of homes nearby

How 1240 Button Rock Dr ranks against every home in each area.
MeasureThis homeEast LongmontLongmont 80504Boulder County
Estimated valuepricier than$579,13086% of homes52% of homes33% of homes
Price per ft²pricier than$27044% of homes44% of homes14% of homes
Living areabigger than2,147 ft²76% of homes57% of homes58% of homes
Lot sizebigger than0.15 ac39% of homes31% of homes33% of homes
Year builtnewer than199979% of homes36% of homes76% of homes

About 1240 Button Rock Dr

How much is 1240 Button Rock Dr, Longmont, CO worth?

The TopHap Estimate for 1240 Button Rock Dr, Longmont, CO is $579,130 as of Aug 30, 2026. The likely range is $555,809 to $602,451. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1240 Button Rock Dr, Longmont, CO last sell?

1240 Button Rock Dr, Longmont, CO last sold on Feb 12, 2019 for $441,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 1240 Button Rock Dr, Longmont, CO?

1240 Button Rock Dr, Longmont, CO has 4 bedrooms, 3 bathrooms, 2,147 square feet of living space and a 0.15-acre lot.

When was 1240 Button Rock Dr, Longmont, CO built?

1240 Button Rock Dr, Longmont, CO was built in 1999, making it 27 years old. It is a a-frame home. The building has 2 stories.

What schools serve 1240 Button Rock Dr, Longmont, CO?

1240 Button Rock Dr, Longmont, CO is assigned to Fall River Elementary School (elementary), rated B; Trail Ridge Middle School (middle), rated C-; Skyline High School (high), rated D+. All sit in St. Vrain Valley School District Re 1j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1240 Button Rock Dr, Longmont, CO compare to other homes in Longmont 80504?

Among the 21,650 homes in Longmont 80504, it is worth more than 52% of them ($579,130 against a typical $572,281), its price per square foot is higher than 44% of them ($270 against a typical $278), it is bigger than 57% of them (2,147 ft² against a typical 2,016 ft²), its lot is bigger than 31% of them (0.15 ac against a typical 0.17 ac) and it is newer than 36% of them (1999 against a typical 2002). Measured against all of Boulder County, it is worth more than 33% 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 1240 Button Rock Dr, Longmont, CO?

The 2025 property tax bill for 1240 Button Rock Dr, Longmont, CO was $3,952. The county assessed it at $40,963.

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