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Single Family ResidenceResidential
$1,913,941$450 / 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 Sep 24, 2026

21 CLARK ST

WINCHESTER, MA 01890
6
Beds
4 / 1
Baths
4,252 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.
0.19 ac
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.
3
StoriesHow many floors the home has above ground.
12
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.9M
$1.8M low$2M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,880 (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.$1,702,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$603,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,098,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,702,400

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.Colonial
CountyMiddlesex
Lot (acres)The size of the land the home sits on, from county records.0.19
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
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes

Transaction History(1)

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
Winchester High SchoolA+
High · Grades 9–12 · 0.4 mi
E
Lynch Elementary SchoolA-
Elementary · Grades KG–5 · 0.5 mi
M
McCall Middle SchoolA
Middle · Grades 6–8 · 0.7 mi

District: Winchester School District

Neighborhood · ZIP 01890These 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.23
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.82

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.4%
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.23,604
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,661 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$195,899
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$255,940
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

21 Clark 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 94% of homes in Middlesex County
  • Costs less per square foot than 89% of homes in Winchester 01890
  • Bigger than 96% of homes in Middlesex County
  • Has a smaller lot than 76% of homes in Winchester 01890
  • Newer than 97% of homes in Winchester 01890

What homes are worth in Winchester 01890

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

This home
$353K$3.5M

This home is worth more than 71% of homes in Winchester 01890.

How it measures up in Winchester 01890

The dot is this home. The mark in the middle is the typical home in Winchester 01890.

Estimated value$1,913,941
CheaperTypical $1,515,255Pricier

Pricier than 71% of homes nearby

Price per ft²$450
CheaperTypical $582Pricier

Pricier than 11% of homes nearby

Living area4,252 ft²
SmallerTypical 2,635 ft²Bigger

Bigger than 86% of homes nearby

Lot size0.19 ac
SmallerTypical 0.27 acBigger

Bigger than 24% of homes nearby

Year built2015
OlderTypical 1952Newer

Newer than 97% of homes nearby

How 21 Clark St ranks against every home in each area.
MeasureThis homeWinchester 01890Middlesex County
Estimated valuepricier than$1,913,94171% of homes94% of homes
Price per ft²pricier than$45011% of homes47% of homes
Living areabigger than4,252 ft²86% of homes96% of homes
Lot sizebigger than0.19 ac24% of homes33% of homes
Year builtnewer than201597% of homes96% of homes

About 21 Clark St

How much is 21 Clark St, Winchester, MA worth?

The TopHap Estimate for 21 Clark St, Winchester, MA is $1,913,941 as of Sep 24, 2026. The likely range is $1,826,678 to $2,001,204. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 21 Clark St, Winchester, MA?

21 Clark St, Winchester, MA has 6 bedrooms, 4 bathrooms, 4,252 square feet of living space and a 0.19-acre lot.

When was 21 Clark St, Winchester, MA built?

21 Clark St, Winchester, MA was built in 2015, making it 11 years old. It is a colonial home. The building has 3 stories.

What schools serve 21 Clark St, Winchester, MA?

21 Clark St, Winchester, MA is assigned to Winchester High School (high), rated A+; Lynch Elementary School (elementary), rated A-; McCall Middle School (middle), rated A. All sit in Winchester School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Clark St, Winchester, MA compare to other homes in Winchester 01890?

Among the 7,523 homes in Winchester 01890, it is worth more than 71% of them ($1,913,941 against a typical $1,515,255), its price per square foot is higher than 11% of them ($450 against a typical $582), it is bigger than 86% of them (4,252 ft² against a typical 2,635 ft²), its lot is bigger than 24% of them (0.19 ac against a typical 0.27 ac) and it is newer than 97% of them (2015 against a typical 1952). Measured against all of Middlesex County, it is worth more than 94% 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 Clark St, Winchester, MA?

The 2025 property tax bill for 21 Clark St, Winchester, MA was $18,880. The county assessed it at $1,702,400.

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