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CondominiumResidential
$1,096,167$664 / 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 84How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $566,000 on Dec 27, 2012

10 COLBY ST

BELMONT, MA 02478
3
Beds
2.5
Baths
1,650 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
2012
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.1M
$919K low$1.3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$566,000 · Dec 27, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,568 (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.$840,000 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$840,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$860,320

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMIDDLESEX
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
FireplaceWhether the home has a fireplace, and what kind.Yes
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

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

H
Belmont High SchoolA+
High · Grades 9–12 · 0.4 mi
E
Mary Lee BurbankA+
Elementary · Grades KG–3 · 0.4 mi
M
Winthrop L Chenery Upper Elementary SchoolA-
Middle · Grades 4–6 · 0.8 mi

District: Belmont School District

Neighborhood · ZIP 02478These 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.55
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.74

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.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.27,636
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,959 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$162,650
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$213,185
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

10 Colby 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 less than 77% of homes in Belmont 02478
  • Costs more per square foot than 83% of homes in Middlesex County
  • Smaller than 74% of homes in Belmont 02478
  • Has a smaller lot than 87% of homes in Belmont 02478
  • Newer than 98% of homes in Belmont 02478

What homes are worth in Belmont 02478

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

This home
$561K$3.5M

This home is worth more than 23% of homes in Belmont 02478.

How it measures up in Belmont 02478

The dot is this home. The mark in the middle is the typical home in Belmont 02478.

Estimated value$1,096,167
CheaperTypical $1,458,120Pricier

Pricier than 23% of homes nearby

Price per ft²$664
CheaperTypical $715Pricier

Pricier than 34% of homes nearby

Living area1,650 ft²
SmallerTypical 2,126 ft²Bigger

Bigger than 26% of homes nearby

Lot size0.11 ac
SmallerTypical 0.16 acBigger

Bigger than 13% of homes nearby

Year built2012
OlderTypical 1930Newer

Newer than 98% of homes nearby

How 10 Colby St ranks against every home in each area.
MeasureThis homeBelmont 02478Middlesex County
Estimated valuepricier than$1,096,16723% of homes75% of homes
Price per ft²pricier than$66434% of homes83% of homes
Living areabigger than1,650 ft²26% of homes42% of homes
Lot sizebigger than0.11 ac13% of homes14% of homes
Year builtnewer than201298% of homes95% of homes

About 10 Colby St

How much is 10 Colby St, Belmont, MA worth?

The TopHap Estimate for 10 Colby St, Belmont, MA is $1,096,167 as of Sep 24, 2026. The likely range is $918,682 to $1,273,652. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10 Colby St, Belmont, MA last sell?

10 Colby St, Belmont, MA last sold on Dec 27, 2012 for $566,000, according to the county's recorded deed.

How big is 10 Colby St, Belmont, MA?

10 Colby St, Belmont, MA has 3 bedrooms, 2.5 bathrooms and 1,650 square feet of living space.

When was 10 Colby St, Belmont, MA built?

10 Colby St, Belmont, MA was built in 2012, making it 14 years old. It is a condo/apartment home. The building has 3 stories.

What schools serve 10 Colby St, Belmont, MA?

10 Colby St, Belmont, MA is assigned to Belmont High School (high), rated A+; Mary Lee Burbank (elementary), rated A+; Winthrop L Chenery Upper Elementary School (middle), rated A-. All sit in Belmont School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 10 Colby St, Belmont, MA compare to other homes in Belmont 02478?

Among the 7,995 homes in Belmont 02478, it is worth more than 23% of them ($1,096,167 against a typical $1,458,120), its price per square foot is higher than 34% of them ($664 against a typical $715), it is bigger than 26% of them (1,650 ft² against a typical 2,126 ft²), its lot is bigger than 13% of them (0.11 ac against a typical 0.16 ac) and it is newer than 98% of them (2012 against a typical 1930). Measured against all of Middlesex County, it is worth more than 75% 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 10 Colby St, Belmont, MA?

The 2025 property tax bill for 10 Colby St, Belmont, MA was $9,568. The county assessed it at $840,000.

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