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Single Family ResidenceResidential
$1,058,251$364 / 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 96How 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
Last sold for $705,000 on Aug 21, 2018

4 MARY LOU CIR

WESTBOROUGH, MA 01581
4
Beds
2.5
Baths
2,904 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.
0.67 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1.1M
$1M low$1.1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$705,000 · Aug 21, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$14,658 (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.$899,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$361,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$538,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,130,310

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.0.67
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
CoolingThe type of cooling or air conditioning in the home.Yes
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.

M
Sarah W. Gibbons Middle SchoolA
Middle · Grades 7–8 · 1.2 mi
H
Westborough High SchoolA
High · Grades 9–12 · 1.2 mi
E
J. Harding Armstrong Elementary SchoolA-
Elementary · Grades KG–3 · 1.3 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

4 Mary Lou Cir 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 97% of homes in Worcester County
  • Costs more per square foot than 78% of homes in Worcester County
  • Bigger than 88% of homes in Worcester County
  • Newer than 71% of homes in Worcester County

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 83% 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$1,058,251
CheaperTypical $699,445Pricier

Pricier than 83% of homes nearby

Price per ft²$364
CheaperTypical $375Pricier

Pricier than 43% of homes nearby

Living area2,904 ft²
SmallerTypical 1,947 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.67 ac
SmallerTypical 0.65 acBigger

Bigger than 51% of homes nearby

Year built1988
OlderTypical 1977Newer

Newer than 61% of homes nearby

How 4 Mary Lou Cir ranks against every home in each area.
MeasureThis homeWestborough 01581Worcester County
Estimated valuepricier than$1,058,25183% of homes97% of homes
Price per ft²pricier than$36443% of homes78% of homes
Living areabigger than2,904 ft²80% of homes88% of homes
Lot sizebigger than0.67 ac51% of homes59% of homes
Year builtnewer than198861% of homes71% of homes

About 4 Mary Lou Cir

How much is 4 Mary Lou Cir, Westborough, MA worth?

The TopHap Estimate for 4 Mary Lou Cir, Westborough, MA is $1,058,251 as of Sep 24, 2026. The likely range is $1,013,596 to $1,102,906. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4 Mary Lou Cir, Westborough, MA last sell?

4 Mary Lou Cir, Westborough, MA last sold on Aug 21, 2018 for $705,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4 Mary Lou Cir, Westborough, MA?

4 Mary Lou Cir, Westborough, MA has 4 bedrooms, 2.5 bathrooms, 2,904 square feet of living space and a 0.67-acre lot.

When was 4 Mary Lou Cir, Westborough, MA built?

4 Mary Lou Cir, Westborough, MA was built in 1988, making it 38 years old. It is a colonial home. The building has 2 stories.

What schools serve 4 Mary Lou Cir, Westborough, MA?

4 Mary Lou Cir, Westborough, MA is assigned to Sarah W. Gibbons Middle School (middle), rated A; Westborough High School (high), rated A; J. Harding Armstrong 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 4 Mary Lou Cir, Westborough, MA compare to other homes in Westborough 01581?

Among the 5,696 homes in Westborough 01581, it is worth more than 83% of them ($1,058,251 against a typical $699,445), its price per square foot is higher than 43% of them ($364 against a typical $375), it is bigger than 80% of them (2,904 ft² against a typical 1,947 ft²), its lot is bigger than 51% of them (0.67 ac against a typical 0.65 ac) and it is newer than 61% of them (1988 against a typical 1977). Measured against all of Worcester County, it is worth more than 97% 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 4 Mary Lou Cir, Westborough, MA?

The 2025 property tax bill for 4 Mary Lou Cir, Westborough, MA was $14,658. The county assessed it at $899,800.

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