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Single Family ResidenceResidential
$679,734$203 / 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 97How 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 $515,000 on May 13, 2020

615 ROBERT ST

LONGMONT, CO 80503
5
Beds
4.3
Baths
3,353 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.
1,748 ft²
Lot SizeThe size of the land the home sits on, from county records.
2015
Year BuiltThe year the home was originally built, according to county records.
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

$680K
$656K low$703K 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 · May 13, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,902 (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.$50,803 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,406
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$45,397
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$46,694
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$747,100

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.Townhouse
CountyBOULDER
Lot (acres)The size of the land the home sits on, from county records.0.04
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.Deck · 168 ft²Patio · 349 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.

H
Silver Creek High SchoolA-
High · Grades 9–12 · 0.2 mi
M
Altona Middle SchoolA
Middle · Grades 6–8 · 0.5 mi
E
Eagle Crest Elementary SchoolB+
Elementary · Grades PK–5 · 0.6 mi

District: St. Vrain Valley School District Re 1j

Neighborhood · ZIP 80503These 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.68
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.48

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.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.0%
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.35,912
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.383 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$119,092
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$150,122
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.17 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

615 Robert 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.

  • Among the lowest price per square foot in Southwest Longmont
  • Bigger than 86% of homes in Boulder County
  • Has a smaller lot than 93% of homes in Longmont 80503
  • Newer than 91% of homes in Boulder County

What homes are worth in Longmont 80503

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

This home
$358K$2.7M

This home is worth more than 41% of homes in Longmont 80503.

How it measures up in Longmont 80503

The dot is this home. The mark in the middle is the typical home in Longmont 80503.

Estimated value$679,734
CheaperTypical $739,446Pricier

Pricier than 41% of homes nearby

Price per ft²$203
CheaperTypical $330Pricier

Pricier than 2% of homes nearby

Living area3,353 ft²
SmallerTypical 2,372 ft²Bigger

Bigger than 77% of homes nearby

Lot size1,748 ft²
SmallerTypical 0.2 acBigger

Bigger than 7% of homes nearby

Year built2015
OlderTypical 1993Newer

Newer than 88% of homes nearby

How 615 Robert St ranks against every home in each area.
MeasureThis homeSouthwest LongmontLongmont 80503Boulder County
Estimated valuepricier than$679,73437% of homes41% of homes45% of homes
Price per ft²pricier than$203almost no homes2% of homes2% of homes
Living areabigger than3,353 ft²75% of homes77% of homes86% of homes
Lot sizebigger than1,748 ft²17% of homes7% of homes11% of homes
Year builtnewer than201578% of homes88% of homes91% of homes

About 615 Robert St

How much is 615 Robert St, Longmont, CO worth?

The TopHap Estimate for 615 Robert St, Longmont, CO is $679,734 as of Aug 30, 2026. The likely range is $656,350 to $703,118. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 615 Robert St, Longmont, CO last sell?

615 Robert St, Longmont, CO last sold on May 13, 2020 for $515,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 615 Robert St, Longmont, CO?

615 Robert St, Longmont, CO has 5 bedrooms, 4.3 bathrooms, 3,353 square feet of living space and a 0.04-acre lot.

When was 615 Robert St, Longmont, CO built?

615 Robert St, Longmont, CO was built in 2015, making it 11 years old. It is a townhouse home.

What schools serve 615 Robert St, Longmont, CO?

615 Robert St, Longmont, CO is assigned to Silver Creek High School (high), rated A-; Altona Middle School (middle), rated A; Eagle Crest Elementary School (elementary), rated B+. All sit in St. Vrain Valley School District Re 1j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 615 Robert St, Longmont, CO compare to other homes in Longmont 80503?

Among the 11,721 homes in Longmont 80503, it is worth more than 41% of them ($679,734 against a typical $739,446), its price per square foot is higher than 2% of them ($203 against a typical $330), it is bigger than 77% of them (3,353 ft² against a typical 2,372 ft²), its lot is bigger than 7% of them (1,748 ft² against a typical 0.2 ac) and it is newer than 88% of them (2015 against a typical 1993). Measured against all of Boulder County, it is worth more than 45% 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 615 Robert St, Longmont, CO?

The 2025 property tax bill for 615 Robert St, Longmont, CO was $4,902. The county assessed it at $50,803.

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