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CondominiumResidential
$790,585$682 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $457,000 on May 28, 2010

666 MAIN ST

WINCHESTER, MA 01890
Building report
2
Beds
2
Baths
1,160 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.
1982
Year BuiltThe year the home was originally built, according to county records.
1
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

$791K
$745K low$836K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$457,000 · May 28, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,070 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$728,300 (2026)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$728,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$705,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$672,965

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.132 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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)
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
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(7)

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 · 0.2 mi
E
Lincoln Elementary SchoolA+
Elementary · Grades KG–5 · 0.3 mi
M
McCall Middle SchoolA+
Middle · Grades 6–8 · 0.4 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

666 Main 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 89% of homes in Winchester 01890
  • Costs more per square foot than 85% of homes in Middlesex County
  • Smaller than 93% of homes in Winchester 01890
  • Newer than 79% 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
$347K$3.6M

This home is worth more than 11% 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$790,585
CheaperTypical $1,533,642Pricier

Pricier than 11% of homes nearby

Price per ft²$682
CheaperTypical $584Pricier

Pricier than 80% of homes nearby

Living area1,160 ft²
SmallerTypical 2,632 ft²Bigger

Bigger than 7% of homes nearby

Year built1982
OlderTypical 1952Newer

Newer than 79% of homes nearby

How 666 Main St ranks against every home in each area.
MeasureThis homeWinchester 01890Middlesex County
Estimated valuepricier than$790,58511% of homes51% of homes
Price per ft²pricier than$68280% of homes85% of homes
Living areabigger than1,160 ft²7% of homes18% of homes
Year builtnewer than198279% of homes73% of homes

About 666 Main St

How much is 666 Main St, Winchester, MA worth?

The TopHap Estimate for 666 Main St, Winchester, MA is $790,585 as of Oct 21, 2026. The likely range is $744,940 to $836,230. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 666 Main St, Winchester, MA last sell?

666 Main St, Winchester, MA last sold on May 28, 2010 for $457,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 666 Main St, Winchester, MA?

666 Main St, Winchester, MA has 2 bedrooms, 2 bathrooms and 1,160 square feet of living space.

When was 666 Main St, Winchester, MA built?

666 Main St, Winchester, MA was built in 1982, making it 44 years old. It is a condo/apartment home. The building has 1 story.

What schools serve 666 Main St, Winchester, MA?

666 Main St, Winchester, MA is assigned to Winchester High School (high), rated A+; Lincoln 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 666 Main St, Winchester, MA compare to other homes in Winchester 01890?

Among the 7,523 homes in Winchester 01890, it is worth more than 11% of them ($790,585 against a typical $1,533,642), its price per square foot is higher than 80% of them ($682 against a typical $584), it is bigger than 7% of them (1,160 ft² against a typical 2,632 ft²) and it is newer than 79% of them (1982 against a typical 1952). Measured against all of Middlesex County, it is worth more than 51% 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 666 Main St, Winchester, MA?

The 2026 property tax bill for 666 Main St, Winchester, MA was $8,070. The county assessed it at $728,300.

More homes on Main St

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Assigned schools

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