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CondominiumResidential
$645,670$797 / 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 Aug 30, 2026
Last sold for $420,000 on Sep 8, 2017

666 MAIN ST

WINCHESTER, MA 01890
Building report
1
Beds
1.5
Baths
810 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1982
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$646K
$610K low$682K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$420,000 · Sep 8, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$65 (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.$589,400 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$589,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$581,495

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
Lot (acres)The size of the land the home sits on, from county records.0.13
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.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
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

Transaction History(8)

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 94% of homes in Winchester 01890
  • Costs more per square foot than 95% of homes in Winchester 01890
  • Smaller than 96% of homes in Winchester 01890
  • Has a smaller lot 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
$370K$3.5M

This home is worth more than 6% 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$645,670
CheaperTypical $1,511,572Pricier

Pricier than 6% of homes nearby

Price per ft²$797
CheaperTypical $587Pricier

Pricier than 95% of homes nearby

Living area810 ft²
SmallerTypical 2,622 ft²Bigger

Bigger than 4% of homes nearby

Lot size0.13 ac
SmallerTypical 0.26 acBigger

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$645,6706% of homes32% of homes
Price per ft²pricier than$79795% of homes92% of homes
Living areabigger than810 ft²4% of homes6% of homes
Lot sizebigger than0.13 ac7% of homes19% 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 $645,670 as of Aug 30, 2026. The likely range is $609,786 to $681,554. 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 Sep 8, 2017 for $420,000, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 666 Main St, Winchester, MA?

666 Main St, Winchester, MA has 1 bedrooms, 1.5 bathrooms, 810 square feet of living space and a 0.13-acre lot.

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 6% of them ($645,670 against a typical $1,511,572), its price per square foot is higher than 95% of them ($797 against a typical $587), it is bigger than 4% of them (810 ft² against a typical 2,622 ft²), its lot is bigger than 7% of them (0.13 ac against a typical 0.26 ac) and it is newer than 79% of them (1982 against a typical 1952). Measured against all of Middlesex County, it is worth more than 32% 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 2025 property tax bill for 666 Main St, Winchester, MA was $65. The county assessed it at $589,400.

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