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Single Family ResidenceResidential
$403,498$354 / 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 $215,000 on Feb 26, 2021

21 WALNUT ST

ATTLEBORO, MA 02703
3
Beds
1
Baths
1,140 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$403K
$381K low$426K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$215,000 · Feb 26, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,069 (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.$324,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$129,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$194,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$300,200

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.Conventional
CountyBRISTOL
Lot (acres)The size of the land the home sits on, from county records.0.23
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Steam
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
A. Irvin Studley Elementary SchoolB
Elementary · Grades KG–4 · 0.5 mi
H
Attleboro High SchoolC+
High · Grades 9–12 · 0.5 mi
M
Cyril K. Brennan Middle SchoolC
Middle · Grades 5–8 · 0.6 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

21 Walnut 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 83% of homes in Attleboro 02703
  • Smaller than 81% of homes in Bristol County
  • Has a smaller lot than 80% of homes in Attleboro 02703
  • Older than 75% 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
$274K$873K

This home is worth more than 17% 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$403,498
CheaperTypical $510,787Pricier

Pricier than 17% of homes nearby

Price per ft²$354
CheaperTypical $339Pricier

Pricier than 58% of homes nearby

Living area1,140 ft²
SmallerTypical 1,594 ft²Bigger

Bigger than 22% of homes nearby

Lot size0.23 ac
SmallerTypical 0.37 acBigger

Bigger than 20% of homes nearby

Year built1930
OlderTypical 1968Newer

Newer than 25% of homes nearby

How 21 Walnut St ranks against every home in each area.
MeasureThis homeAttleboro 02703Bristol County
Estimated valuepricier than$403,49817% of homes18% of homes
Price per ft²pricier than$35458% of homes58% of homes
Living areabigger than1,140 ft²22% of homes19% of homes
Lot sizebigger than0.23 ac20% of homes32% of homes
Year builtnewer than193025% of homes28% of homes

About 21 Walnut St

How much is 21 Walnut St, Attleboro, MA worth?

The TopHap Estimate for 21 Walnut St, Attleboro, MA is $403,498 as of Aug 30, 2026. The likely range is $380,865 to $426,131. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Walnut St, Attleboro, MA last sell?

21 Walnut St, Attleboro, MA last sold on Feb 26, 2021 for $215,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Walnut St, Attleboro, MA?

21 Walnut St, Attleboro, MA has 3 bedrooms, 1 bathrooms, 1,140 square feet of living space and a 0.23-acre lot.

When was 21 Walnut St, Attleboro, MA built?

21 Walnut St, Attleboro, MA was built in 1930, making it 96 years old. It is a conventional home. The building has 2 stories.

What schools serve 21 Walnut St, Attleboro, MA?

21 Walnut St, Attleboro, MA is assigned to A. Irvin Studley Elementary School (elementary), rated B; Attleboro High School (high), rated C+; 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 21 Walnut St, Attleboro, MA compare to other homes in Attleboro 02703?

Among the 13,040 homes in Attleboro 02703, it is worth more than 17% of them ($403,498 against a typical $510,787), its price per square foot is higher than 58% of them ($354 against a typical $339), it is bigger than 22% of them (1,140 ft² against a typical 1,594 ft²), its lot is bigger than 20% of them (0.23 ac against a typical 0.37 ac) and it is newer than 25% of them (1930 against a typical 1968). Measured against all of Bristol County, it is worth more than 18% 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 21 Walnut St, Attleboro, MA?

The 2025 property tax bill for 21 Walnut St, Attleboro, MA was $4,069. The county assessed it at $324,200.

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