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Single Family ResidenceResidential
$491,041$234 / 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 93How 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 $380,000 on Nov 9, 2023

20 MARY ST

ATTLEBORO, MA 02703
4
Beds
2
Baths
2,094 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.
0.42 ac
Lot SizeThe size of the land the home sits on, from county records.
1949
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$491K
$455K low$527K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$380,000 · Nov 9, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,861 (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.$480,400 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$163,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$316,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$456,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$446,785

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.Cape Cod
CountyBRISTOL
Lot (acres)The size of the land the home sits on, from county records.0.42
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(9)

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
Attleboro High SchoolC
High · Grades 9–12 · 0.5 mi
E
A. Irvin Studley Elementary SchoolB-
Elementary · Grades KG–4 · 0.7 mi
M
Cyril K. Brennan Middle SchoolC-
Middle · Grades 5–8 · 0.8 mi

District: Attleboro School District

Neighborhood · ZIP 02703These 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.81
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.62

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.47,225
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,706 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$96,889
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,711
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

20 Mary 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.

  • Costs less per square foot than 97% of homes in Attleboro 02703
  • Bigger than 76% of homes in Attleboro 02703
  • Older than 70% of homes in Attleboro 02703

What homes are worth in Attleboro 02703

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

This home
$285K$907K

This home is worth more than 41% of homes in Attleboro 02703.

How it measures up in Attleboro 02703

The dot is this home. The mark in the middle is the typical home in Attleboro 02703.

Estimated value$491,041
CheaperTypical $516,561Pricier

Pricier than 41% of homes nearby

Price per ft²$234
CheaperTypical $344Pricier

Pricier than 3% of homes nearby

Living area2,094 ft²
SmallerTypical 1,595 ft²Bigger

Bigger than 76% of homes nearby

Lot size0.42 ac
SmallerTypical 0.37 acBigger

Bigger than 59% of homes nearby

Year built1949
OlderTypical 1969Newer

Newer than 30% of homes nearby

How 20 Mary St ranks against every home in each area.
MeasureThis homeAttleboro 02703Bristol County
Estimated valuepricier than$491,04141% of homes42% of homes
Price per ft²pricier than$2343% of homes6% of homes
Living areabigger than2,094 ft²76% of homes68% of homes
Lot sizebigger than0.42 ac59% of homes54% of homes
Year builtnewer than194930% of homes34% of homes

About 20 Mary St

How much is 20 Mary St, Attleboro, MA worth?

The TopHap Estimate for 20 Mary St, Attleboro, MA is $491,041 as of Sep 24, 2026. The likely range is $455,380 to $526,702. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Mary St, Attleboro, MA last sell?

20 Mary St, Attleboro, MA last sold on Nov 9, 2023 for $380,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 20 Mary St, Attleboro, MA?

20 Mary St, Attleboro, MA has 4 bedrooms, 2 bathrooms, 2,094 square feet of living space and a 0.42-acre lot.

When was 20 Mary St, Attleboro, MA built?

20 Mary St, Attleboro, MA was built in 1949, making it 77 years old. It is a cape cod home. The building has 2 stories.

What schools serve 20 Mary St, Attleboro, MA?

20 Mary St, Attleboro, MA is assigned to Attleboro High School (high), rated C; A. Irvin Studley Elementary School (elementary), rated B-; Cyril K. Brennan Middle School (middle), rated C-. All sit in Attleboro School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Mary St, Attleboro, MA compare to other homes in Attleboro 02703?

Among the 13,040 homes in Attleboro 02703, it is worth more than 41% of them ($491,041 against a typical $516,561), its price per square foot is higher than 3% of them ($234 against a typical $344), it is bigger than 76% of them (2,094 ft² against a typical 1,595 ft²), its lot is bigger than 59% of them (0.42 ac against a typical 0.37 ac) and it is newer than 30% of them (1949 against a typical 1969). Measured against all of Bristol County, it is worth more than 42% 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 20 Mary St, Attleboro, MA?

The 2026 property tax bill for 20 Mary St, Attleboro, MA was $5,861. The county assessed it at $480,400.

More homes on Mary St

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