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Single Family ResidenceResidential
$545,133$226 / 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 94How 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 $420,000 on Mar 28, 2017

424 RIDGE AVE

LONGMONT, CO 80501
3
Beds
2.5
Baths
2,414 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.
3,794 ft²
Lot SizeThe size of the land the home sits on, from county records.
2004
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$545K
$515K low$575K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$420,000 · Mar 28, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,968 (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.$41,126 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,140
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$34,986
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$37,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$604,800

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.14 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.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.A-Frame
CountyBOULDER
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.2006
Lot (acres)The size of the land the home sits on, from county records.0.09
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 120 ft²Porch · 104 ft²

Transaction History(6)

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
Burlington Elementary SchoolC
Elementary · Grades PK–5 · 0.5 mi
M
Sunset Middle SchoolD
Middle · Grades 6–8 · 1.1 mi
H
Niwot High SchoolA+
High · Grades 9–12 · 3.5 mi

District: St. Vrain Valley School District Re 1j

Neighborhood · ZIP 80501These 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.115
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.49

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.44,021
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,442 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$77,365
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$98,163
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

424 Ridge 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 more than 74% of homes in Longmont 80501
  • Costs less per square foot than 95% of homes in Boulder County
  • Bigger than 85% of homes in Longmont 80501
  • Has a smaller lot than 88% of homes in Longmont 80501
  • Newer than 90% of homes in Longmont 80501

What homes are worth in Longmont 80501

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

This home
$285K$895K

This home is worth more than 74% of homes in Longmont 80501.

How it measures up in Longmont 80501

The dot is this home. The mark in the middle is the typical home in Longmont 80501.

Estimated value$545,133
CheaperTypical $476,418Pricier

Pricier than 74% of homes nearby

Price per ft²$226
CheaperTypical $302Pricier

Pricier than 13% of homes nearby

Living area2,414 ft²
SmallerTypical 1,600 ft²Bigger

Bigger than 85% of homes nearby

Lot size3,794 ft²
SmallerTypical 0.16 acBigger

Bigger than 12% of homes nearby

Year built2004
OlderTypical 1975Newer

Newer than 90% of homes nearby

How 424 Ridge Ave ranks against every home in each area.
MeasureThis homeSouthmoor ParkLongmont 80501Boulder County
Estimated valuepricier than$545,13363% of homes74% of homes29% of homes
Price per ft²pricier than$22615% of homes13% of homes5% of homes
Living areabigger than2,414 ft²83% of homes85% of homes66% of homes
Lot sizebigger than3,794 ft²17% of homes12% of homes16% of homes
Year builtnewer than200469% of homes90% of homes84% of homes

About 424 Ridge Ave

How much is 424 Ridge Ave, Longmont, CO worth?

The TopHap Estimate for 424 Ridge Ave, Longmont, CO is $545,133 as of Aug 30, 2026. The likely range is $515,078 to $575,188. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 424 Ridge Ave, Longmont, CO last sell?

424 Ridge Ave, Longmont, CO last sold on Mar 28, 2017 for $420,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 424 Ridge Ave, Longmont, CO?

424 Ridge Ave, Longmont, CO has 3 bedrooms, 2.5 bathrooms, 2,414 square feet of living space and a 0.09-acre lot.

When was 424 Ridge Ave, Longmont, CO built?

424 Ridge Ave, Longmont, CO was built in 2004, making it 22 years old. It is a a-frame home. The building has 2 stories.

What schools serve 424 Ridge Ave, Longmont, CO?

424 Ridge Ave, Longmont, CO is assigned to Burlington Elementary School (elementary), rated C; Sunset Middle School (middle), rated D; Niwot High School (high), rated A+. All sit in St. Vrain Valley School District Re 1j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 424 Ridge Ave, Longmont, CO compare to other homes in Longmont 80501?

Among the 13,174 homes in Longmont 80501, it is worth more than 74% of them ($545,133 against a typical $476,418), its price per square foot is higher than 13% of them ($226 against a typical $302), it is bigger than 85% of them (2,414 ft² against a typical 1,600 ft²), its lot is bigger than 12% of them (3,794 ft² against a typical 0.16 ac) and it is newer than 90% of them (2004 against a typical 1975). Measured against all of Boulder County, it is worth more than 29% 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 424 Ridge Ave, Longmont, CO?

The 2025 property tax bill for 424 Ridge Ave, Longmont, CO was $3,968. The county assessed it at $41,126.

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