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Single Family ResidenceResidential
$577,672$359 / 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

100 W MAIN ST

WESTBOROUGH, MA 01581
3
Beds
1.5
Baths
1,607 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$578K
$542K low$613K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,461 (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.$519,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$307,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$211,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$690,365

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWORCESTER
Lot (acres)The size of the land the home sits on, from county records.0.34
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.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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
Westborough High SchoolA
High · Grades 9–12 · 0.2 mi
E
J. Harding Armstrong Elementary SchoolA-
Elementary · Grades KG–3 · 0.4 mi
M
Sarah W. Gibbons Middle SchoolA
Middle · Grades 7–8 · 0.5 mi

District: Westborough School District

Neighborhood · ZIP 01581These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.59

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.21,880
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,023 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$137,510
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$171,995
Average tempThe average temperature here across a full year.48°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.50%

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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

100 W 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 69% of homes in Westborough 01581
  • Costs more per square foot than 76% of homes in Worcester County
  • Has a smaller lot than 82% of homes in Westborough 01581
  • Older than 84% of homes in Westborough 01581

What homes are worth in Westborough 01581

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

This home
$263K$1.6M

This home is worth more than 31% of homes in Westborough 01581.

How it measures up in Westborough 01581

The dot is this home. The mark in the middle is the typical home in Westborough 01581.

Estimated value$577,672
CheaperTypical $704,760Pricier

Pricier than 31% of homes nearby

Price per ft²$359
CheaperTypical $382Pricier

Pricier than 34% of homes nearby

Living area1,607 ft²
SmallerTypical 1,944 ft²Bigger

Bigger than 37% of homes nearby

Lot size0.34 ac
SmallerTypical 0.65 acBigger

Bigger than 18% of homes nearby

Year built1950
OlderTypical 1976Newer

Newer than 16% of homes nearby

How 100 W Main St ranks against every home in each area.
MeasureThis homeWestborough 01581Worcester County
Estimated valuepricier than$577,67231% of homes68% of homes
Price per ft²pricier than$35934% of homes76% of homes
Living areabigger than1,607 ft²37% of homes45% of homes
Lot sizebigger than0.34 ac18% of homes37% of homes
Year builtnewer than195016% of homes33% of homes

About 100 W Main St

How much is 100 W Main St, Westborough, MA worth?

The TopHap Estimate for 100 W Main St, Westborough, MA is $577,672 as of Aug 30, 2026. The likely range is $542,364 to $612,980. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 W Main St, Westborough, MA last sell?

100 W Main St, Westborough, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 100 W Main St, Westborough, MA?

100 W Main St, Westborough, MA has 3 bedrooms, 1.5 bathrooms, 1,607 square feet of living space and a 0.34-acre lot.

When was 100 W Main St, Westborough, MA built?

100 W Main St, Westborough, MA was built in 1950, making it 76 years old. The building has 2 stories.

What schools serve 100 W Main St, Westborough, MA?

100 W Main St, Westborough, MA is assigned to Westborough High School (high), rated A; J. Harding Armstrong Elementary School (elementary), rated A-; Sarah W. Gibbons Middle School (middle), rated A. All sit in Westborough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100 W Main St, Westborough, MA compare to other homes in Westborough 01581?

Among the 5,696 homes in Westborough 01581, it is worth more than 31% of them ($577,672 against a typical $704,760), its price per square foot is higher than 34% of them ($359 against a typical $382), it is bigger than 37% of them (1,607 ft² against a typical 1,944 ft²), its lot is bigger than 18% of them (0.34 ac against a typical 0.65 ac) and it is newer than 16% of them (1950 against a typical 1976). Measured against all of Worcester County, it is worth more than 68% 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 100 W Main St, Westborough, MA?

The 2025 property tax bill for 100 W Main St, Westborough, MA was $8,461. The county assessed it at $519,400.

More homes on W Main St

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Assigned schools

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