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Single Family ResidenceResidential
$628,252$373 / 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 97How 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 $220,000 on May 31, 1988

40 WARREN ST

WESTBOROUGH, MA 01581
4
Beds
1.5
Baths
1,686 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$628K
$607K low$649K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$220,000 · May 31, 1988

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,221 (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.$704,400 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$335,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$368,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$655,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$729,346

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

Scores 0–100; higher = greater projected risk.

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
CountyWORCESTER
Lot (acres)The size of the land the home sits on, from county records.0.51
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
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, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.In-Ground Pool

Transaction History(14)

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 · 1.0 mi
M
Sarah W. Gibbons Middle SchoolA+
Middle · Grades 7–8 · 1.6 mi
E
Elsie A.Hastings Elementary SchoolA-
Elementary · Grades KG–3 · 1.9 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

40 Warren 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 76% of homes in Worcester County
  • Costs more per square foot than 81% of homes in Worcester County
  • Has a smaller lot than 65% of homes in Westborough 01581
  • Older than 67% 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
$262K$1.5M

This home is worth more than 40% 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$628,252
CheaperTypical $695,991Pricier

Pricier than 40% of homes nearby

Price per ft²$373
CheaperTypical $375Pricier

Pricier than 48% of homes nearby

Living area1,686 ft²
SmallerTypical 1,943 ft²Bigger

Bigger than 40% of homes nearby

Lot size0.51 ac
SmallerTypical 0.71 acBigger

Bigger than 35% of homes nearby

Year built1966
OlderTypical 1977Newer

Newer than 33% of homes nearby

How 40 Warren St ranks against every home in each area.
MeasureThis homeWestborough 01581Worcester County
Estimated valuepricier than$628,25240% of homes76% of homes
Price per ft²pricier than$37348% of homes81% of homes
Living areabigger than1,686 ft²40% of homes49% of homes
Lot sizebigger than0.51 ac35% of homes51% of homes
Year builtnewer than196633% of homes48% of homes

About 40 Warren St

How much is 40 Warren St, Westborough, MA worth?

The TopHap Estimate for 40 Warren St, Westborough, MA is $628,252 as of Oct 21, 2026. The likely range is $607,288 to $649,216. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Warren St, Westborough, MA last sell?

40 Warren St, Westborough, MA last sold on May 31, 1988 for $220,000, according to the county's recorded deed.

How big is 40 Warren St, Westborough, MA?

40 Warren St, Westborough, MA has 4 bedrooms, 1.5 bathrooms, 1,686 square feet of living space and a 0.51-acre lot.

When was 40 Warren St, Westborough, MA built?

40 Warren St, Westborough, MA was built in 1966, making it 60 years old. It is a colonial home. The building has 2 stories.

What schools serve 40 Warren St, Westborough, MA?

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

How does 40 Warren St, Westborough, MA compare to other homes in Westborough 01581?

Among the 5,696 homes in Westborough 01581, it is worth more than 40% of them ($628,252 against a typical $695,991), its price per square foot is higher than 48% of them ($373 against a typical $375), it is bigger than 40% of them (1,686 ft² against a typical 1,943 ft²), its lot is bigger than 35% of them (0.51 ac against a typical 0.71 ac) and it is newer than 33% of them (1966 against a typical 1977). Measured against all of Worcester County, it is worth more than 76% 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 40 Warren St, Westborough, MA?

The 2026 property tax bill for 40 Warren St, Westborough, MA was $11,221. The county assessed it at $704,400.

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