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Single Family ResidenceResidential
$513,342$271 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $515,000 on Aug 21, 2025

910 ROUNDUP PL

LONGMONT, CO 80504
3
Beds
2.3
Baths
1,893 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.
0.31 ac
Lot SizeThe size of the land the home sits on, from county records.
2001
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
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

$513K
$489K low$537K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$515,000 · Aug 21, 2025
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$101,342
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$81,074
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.80%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$412,000
MARK MICHELS · recorded Aug 21, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,019 (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.$41,656 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$11,206
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$30,450
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$38,288
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$612,600

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.0.31
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.Porch · 30 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.

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

E
Alpine Elementary SchoolB+
Elementary · Grades PK–5 · 0.8 mi
H
Skyline High SchoolD+
High · Grades 9–12 · 1.3 mi
M
Timberline PK - 8 SchoolC-
Middle · Grades PK–8 · 1.5 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.64,419
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.$110,048
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

910 Roundup Pl 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 75% of homes in Boulder County
  • Costs less per square foot than 86% of homes in Boulder County
  • Has a bigger lot than 90% of homes in New North Longmont
  • Newer than 79% of homes in Boulder County

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
$322K$1.7M

This home is worth more than 31% 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$513,342
CheaperTypical $571,595Pricier

Pricier than 31% of homes nearby

Price per ft²$271
CheaperTypical $281Pricier

Pricier than 43% of homes nearby

Living area1,893 ft²
SmallerTypical 2,006 ft²Bigger

Bigger than 44% of homes nearby

Lot size0.31 ac
SmallerTypical 0.17 acBigger

Bigger than 84% of homes nearby

Year built2001
OlderTypical 2002Newer

Newer than 49% of homes nearby

How 910 Roundup Pl ranks against every home in each area.
MeasureThis homeNew North LongmontLongmont 80504Boulder County
Estimated valuepricier than$513,34236% of homes31% of homes25% of homes
Price per ft²pricier than$27159% of homes43% of homes14% of homes
Living areabigger than1,893 ft²40% of homes44% of homes49% of homes
Lot sizebigger than0.31 ac90% of homes84% of homes76% of homes
Year builtnewer than200161% of homes49% of homes79% of homes

About 910 Roundup Pl

How much is 910 Roundup Pl, Longmont, CO worth?

The TopHap Estimate for 910 Roundup Pl, Longmont, CO is $513,342 as of Jul 14, 2026. The likely range is $489,245 to $537,439. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 910 Roundup Pl, Longmont, CO last sell?

910 Roundup Pl, Longmont, CO last sold on Aug 21, 2025 for $515,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 910 Roundup Pl, Longmont, CO?

910 Roundup Pl, Longmont, CO has 3 bedrooms, 2.3 bathrooms, 1,893 square feet of living space and a 0.31-acre lot.

When was 910 Roundup Pl, Longmont, CO built?

910 Roundup Pl, Longmont, CO was built in 2001, making it 25 years old. It is a a-frame home. The building has 2 stories.

What schools serve 910 Roundup Pl, Longmont, CO?

910 Roundup Pl, Longmont, CO is assigned to Alpine Elementary School (elementary), rated B+; Skyline High School (high), rated D+; Timberline PK - 8 School (middle), 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 910 Roundup Pl, Longmont, CO compare to other homes in Longmont 80504?

Among the 21,700 homes in Longmont 80504, it is worth more than 31% of them ($513,342 against a typical $571,595), its price per square foot is higher than 43% of them ($271 against a typical $281), it is bigger than 44% of them (1,893 ft² against a typical 2,006 ft²), its lot is bigger than 84% of them (0.31 ac against a typical 0.17 ac) and it is newer than 49% of them (2001 against a typical 2002). Measured against all of Boulder County, it is worth more than 25% 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 910 Roundup Pl, Longmont, CO?

The 2025 property tax bill for 910 Roundup Pl, Longmont, CO was $4,019. The county assessed it at $41,656.

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See this home in context

Open 910 Roundup Plon TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

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