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Single Family ResidenceResidential
$1,038,032$880 / 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 88How 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

21 WINTER ST

SOMERVILLE, MA 02144
2
Beds
1.5
Baths
1,180 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.
2,546 ft²
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
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

$1M
$914K low$1.2M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,070 (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.$1,014,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$748,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$266,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,407,235

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.Split Foyer
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.06
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.Slate
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Benjamin G BrownA-
Elementary · Grades KG–5 · 0.5 mi
M
West Somerville NeighborhoodC+
Middle · Grades PK–8 · 0.6 mi
H
Somerville High SchoolB-
High · Grades 9–12 · 1.5 mi

District: Somerville School District

Neighborhood · ZIP 02144These 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.121
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.77

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
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.27,333
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.23,644 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,001
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$167,407
Average tempThe average temperature here across a full year.50°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%

Owner Tools

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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

21 Winter 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 more than 72% of homes in Middlesex County
  • Costs more per square foot than 95% of homes in Middlesex County
  • Smaller than 81% of homes in Middlesex County
  • Has a smaller lot than 97% of homes in Middlesex County
  • Older than 85% of homes in Middlesex County

What homes are worth in Somerville 02144

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

This home
$531K$2.2M

This home is worth more than 52% of homes in Somerville 02144.

How it measures up in Somerville 02144

The dot is this home. The mark in the middle is the typical home in Somerville 02144.

Estimated value$1,038,032
CheaperTypical $1,017,064Pricier

Pricier than 52% of homes nearby

Price per ft²$880
CheaperTypical $753Pricier

Pricier than 82% of homes nearby

Living area1,180 ft²
SmallerTypical 2,266 ft²Bigger

Bigger than 20% of homes nearby

Lot size2,546 ft²
SmallerTypical 3,703 ft²Bigger

Bigger than 6% of homes nearby

Year built1900
OlderTypical 1910Newer

Newer than 33% of homes nearby

How 21 Winter St ranks against every home in each area.
MeasureThis homeDavis SquareSomerville 02144Middlesex County
Estimated valuepricier than$1,038,03241% of homes52% of homes72% of homes
Price per ft²pricier than$88074% of homes82% of homes95% of homes
Living areabigger than1,180 ft²20% of homes20% of homes19% of homes
Lot sizebigger than2,546 ft²8% of homes6% of homes3% of homes
Year builtnewer than190045% of homes33% of homes15% of homes

About 21 Winter St

How much is 21 Winter St, Somerville, MA worth?

The TopHap Estimate for 21 Winter St, Somerville, MA is $1,038,032 as of Aug 30, 2026. The likely range is $913,980 to $1,162,084. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Winter St, Somerville, MA last sell?

21 Winter St, Somerville, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Winter St, Somerville, MA?

21 Winter St, Somerville, MA has 2 bedrooms, 1.5 bathrooms, 1,180 square feet of living space and a 0.06-acre lot.

When was 21 Winter St, Somerville, MA built?

21 Winter St, Somerville, MA was built in 1900, making it 126 years old. It is a split foyer home. The building has 2 stories.

What schools serve 21 Winter St, Somerville, MA?

21 Winter St, Somerville, MA is assigned to Benjamin G Brown (elementary), rated A-; West Somerville Neighborhood (middle), rated C+; Somerville High School (high), rated B-. All sit in Somerville School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Winter St, Somerville, MA compare to other homes in Somerville 02144?

Among the 5,657 homes in Somerville 02144, it is worth more than 52% of them ($1,038,032 against a typical $1,017,064), its price per square foot is higher than 82% of them ($880 against a typical $753), it is bigger than 20% of them (1,180 ft² against a typical 2,266 ft²), its lot is bigger than 6% of them (2,546 ft² against a typical 3,703 ft²) and it is newer than 33% of them (1900 against a typical 1910). Measured against all of Middlesex County, it is worth more than 72% 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 21 Winter St, Somerville, MA?

The 2025 property tax bill for 21 Winter St, Somerville, MA was $11,070. The county assessed it at $1,014,700.

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