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Single Family ResidenceResidential
$436,775$308 / 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 91How 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 $297,900 on Jul 24, 2007

20 BLACKMAR ST

BELLINGHAM, MA 02019
3
Beds
1
Baths
1,416 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.
0.46 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
1
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

$437K
$398K low$475K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$297,900 · Jul 24, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,440 (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.$353,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$132,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$221,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$471,390

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.24 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

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.Ranch
CountyNORFOLK
Lot (acres)The size of the land the home sits on, from county records.0.46
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
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(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.

H
Bellingham High SchoolC
High · Grades 8–12 · 1.1 mi
M
Bellingham Memorial SchoolC+
Middle · Grades 4–7 · 1.1 mi
E
Joseph F. DiPietro Elementary SchoolB-
Elementary · Grades KG–3 · 2.2 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

20 Blackmar 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 92% of homes in Norfolk County
  • Costs less per square foot than 92% of homes in Norfolk County
  • Smaller than 68% of homes in Bellingham 02019

What homes are worth in Bellingham 02019

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

This home
$331K$907K

This home is worth more than 24% 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.

Estimated value$436,775
CheaperTypical $506,195Pricier

Pricier than 24% of homes nearby

Price per ft²$308
CheaperTypical $306Pricier

Pricier than 51% of homes nearby

Living area1,416 ft²
SmallerTypical 1,704 ft²Bigger

Bigger than 32% of homes nearby

Lot size0.46 ac
SmallerTypical 0.51 acBigger

Bigger than 45% of homes nearby

Year built1966
OlderTypical 1969Newer

Newer than 46% of homes nearby

How 20 Blackmar St ranks against every home in each area.
MeasureThis homeBellingham 02019Norfolk County
Estimated valuepricier than$436,77524% of homes8% of homes
Price per ft²pricier than$30851% of homes8% of homes
Living areabigger than1,416 ft²32% of homes36% of homes
Lot sizebigger than0.46 ac45% of homes59% of homes
Year builtnewer than196646% of homes59% of homes

About 20 Blackmar St

How much is 20 Blackmar St, Bellingham, MA worth?

The TopHap Estimate for 20 Blackmar St, Bellingham, MA is $436,775 as of Aug 30, 2026. The likely range is $398,076 to $475,474. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Blackmar St, Bellingham, MA last sell?

20 Blackmar St, Bellingham, MA last sold on Jul 24, 2007 for $297,900, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 20 Blackmar St, Bellingham, MA?

20 Blackmar St, Bellingham, MA has 3 bedrooms, 1 bathrooms, 1,416 square feet of living space and a 0.46-acre lot.

When was 20 Blackmar St, Bellingham, MA built?

20 Blackmar St, Bellingham, MA was built in 1966, making it 60 years old. It is a ranch home. The building has 1 story.

What schools serve 20 Blackmar St, Bellingham, MA?

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

How does 20 Blackmar St, Bellingham, MA compare to other homes in Bellingham 02019?

Among the 6,055 homes in Bellingham 02019, it is worth more than 24% of them ($436,775 against a typical $506,195), its price per square foot is higher than 51% of them ($308 against a typical $306), it is bigger than 32% of them (1,416 ft² against a typical 1,704 ft²), its lot is bigger than 45% of them (0.46 ac against a typical 0.51 ac) and it is newer than 46% of them (1966 against a typical 1969). Measured against all of Norfolk County, it is worth more than 8% 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 Blackmar St, Bellingham, MA?

The 2025 property tax bill for 20 Blackmar St, Bellingham, MA was $4,440. The county assessed it at $353,500.

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