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Duplex (2 Units, Any Combination)Residential
Last sold for $245,000 on Aug 20, 2010

40 KEY ST

BELLINGHAM, MA 02019
3
Beds
2
Baths
1,914 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1948
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
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.$245,000 · Aug 20, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,944 (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.$393,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$165,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$228,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$365,300

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Cape Cod
CountyNorfolk
Lot (acres)The size of the land the home sits on, from county records.0.28
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(3)

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.

E
Joseph F. DiPietro Elementary SchoolB-
Elementary · Grades KG–3 · 1.1 mi
M
Bellingham Memorial SchoolC+
Middle · Grades 4–7 · 4.0 mi
H
Bellingham High SchoolC
High · Grades 8–12 · 4.0 mi

District: Bellingham School District

Neighborhood · ZIP 02019These 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.95
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 100.64

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.17,554
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.931 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,962
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,449
Average tempThe average temperature here across a full year.49°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

40 Key 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 79% of homes in Bellingham 02019
  • Older than 88% of homes in Bellingham 02019

How it measures up in Bellingham 02019

The dot is this home. The mark in the middle is the typical home in Bellingham 02019.

Living area1,914 ft²
SmallerTypical 1,700 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.28 ac
SmallerTypical 0.51 acBigger

Bigger than 21% of homes nearby

Year built1948
OlderTypical 1969Newer

Newer than 12% of homes nearby

How 40 Key St ranks against every home in each area.
MeasureThis homeBellingham 02019Norfolk County
Living areabigger than1,914 ft²63% of homes60% of homes
Lot sizebigger than0.28 ac21% of homes39% of homes
Year builtnewer than194812% of homes35% of homes

About 40 Key St

When did 40 Key St, Bellingham, MA last sell?

40 Key St, Bellingham, MA last sold on Aug 20, 2010 for $245,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 40 Key St, Bellingham, MA?

40 Key St, Bellingham, MA has 3 bedrooms, 2 bathrooms, 1,914 square feet of living space and a 0.28-acre lot.

When was 40 Key St, Bellingham, MA built?

40 Key St, Bellingham, MA was built in 1948, making it 78 years old. It is a cape cod home. The building has 1 story.

What schools serve 40 Key St, Bellingham, MA?

40 Key St, Bellingham, MA is assigned to Joseph F. DiPietro Elementary School (elementary), rated B-; Bellingham Memorial School (middle), rated C+; Bellingham High School (high), rated C. All sit in Bellingham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Key St, Bellingham, MA compare to other homes in Bellingham 02019?

Among the 6,055 homes in Bellingham 02019, it is bigger than 63% of them (1,914 ft² against a typical 1,700 ft²), its lot is bigger than 21% of them (0.28 ac against a typical 0.51 ac) and it is newer than 12% of them (1948 against a typical 1969). 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 Key St, Bellingham, MA?

The 2025 property tax bill for 40 Key St, Bellingham, MA was $4,944. The county assessed it at $393,600.

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