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Triplex (3 Units, Any Combination)Residential
Last sold for $685,000 on Aug 29, 2025

21 SIBLEY ST

ATTLEBORO, MA 02703
4
Beds
3
Baths
1,512 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.
0.15 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.
15
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$685,000 · Aug 29, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,049 (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.$402,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$113,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$288,400

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Triplex (3 Units, Any Combination)
CountyBRISTOL
Lot (acres)The size of the land the home sits on, from county records.0.15
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(2)

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
Robert J. Coelho Middle SchoolB
Middle · Grades 5–8 · 0.8 mi
E
Hill-Roberts Elementary SchoolC
Elementary · Grades KG–4 · 1.9 mi
H
Attleboro High SchoolC+
High · Grades 9–12 · 4.8 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

21 Sibley 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.

  • Has a smaller lot than 91% of homes in Attleboro 02703
  • Older than 70% 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.

Living area1,512 ft²
SmallerTypical 1,594 ft²Bigger

Bigger than 46% of homes nearby

Lot size0.15 ac
SmallerTypical 0.37 acBigger

Bigger than 9% of homes nearby

Year built1949
OlderTypical 1968Newer

Newer than 30% of homes nearby

How 21 Sibley St ranks against every home in each area.
MeasureThis homeAttleboro 02703Bristol County
Living areabigger than1,512 ft²46% of homes41% of homes
Lot sizebigger than0.15 ac9% of homes20% of homes
Year builtnewer than194930% of homes34% of homes

About 21 Sibley St

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

21 Sibley St, Attleboro, MA last sold on Aug 29, 2025 for $685,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 Sibley St, Attleboro, MA?

21 Sibley St, Attleboro, MA has 4 bedrooms, 3 bathrooms, 1,512 square feet of living space and a 0.15-acre lot.

When was 21 Sibley St, Attleboro, MA built?

21 Sibley St, Attleboro, MA was built in 1949, making it 77 years old. The building has 2 stories.

What schools serve 21 Sibley St, Attleboro, MA?

21 Sibley St, Attleboro, MA is assigned to Robert J. Coelho Middle School (middle), rated B; Hill-Roberts Elementary School (elementary), rated C; Attleboro High School (high), rated C+. All sit in Attleboro School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Sibley St, Attleboro, MA compare to other homes in Attleboro 02703?

Among the 13,040 homes in Attleboro 02703, it is bigger than 46% of them (1,512 ft² against a typical 1,594 ft²), its lot is bigger than 9% of them (0.15 ac against a typical 0.37 ac) and it is newer than 30% of them (1949 against a typical 1968). 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 Sibley St, Attleboro, MA?

The 2025 property tax bill for 21 Sibley St, Attleboro, MA was $5,049. The county assessed it at $402,300.

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