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Duplex (2 Units, Any Combination)Residential
Last sold for $150,000 on Oct 18, 1988

20 FRANKLIN ST

DORCHESTER, MA 02122
5
Beds
2
Baths
2,559 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1850
Year BuiltThe year the home was originally built, according to county records.
3
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

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$150,000 · Oct 18, 1988

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,957 (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.$600,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$203,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$397,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$601,700

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.60 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.57%
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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountySuffolk
Lot (acres)The size of the land the home sits on, from county records.0.10
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Richard J. Murphy K-8 SchoolC
Elementary · Grades PK–8 · 0.6 mi
H
Community Academy Of Science And HealthF
High · Grades 9–12 · 1.4 mi

District: Boston School District

Neighborhood · ZIP 02122These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.76

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.23,849
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,977 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$84,827
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$116,947
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.47 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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 Franklin 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.

  • Bigger than 78% of homes in Suffolk County
  • Has a bigger lot than 74% of homes in Dorchester 02122
  • Among the oldest homes in Dorchester

How it measures up in Dorchester 02122

The dot is this home. The mark in the middle is the typical home in Dorchester 02122.

Living area2,559 ft²
SmallerTypical 1,938 ft²Bigger

Bigger than 64% of homes nearby

Lot size0.1 ac
SmallerTypical 3,398 ft²Bigger

Bigger than 74% of homes nearby

Year built1850
OlderTypical 1910Newer

Older than almost all homes nearby

How 20 Franklin St ranks against every home in each area.
MeasureThis homeDorchesterDorchester 02122Suffolk County
Living areabigger than2,559 ft²55% of homes64% of homes78% of homes
Lot sizebigger than0.1 ac67% of homes74% of homes69% of homes
Year builtnewer than1850almost no homesalmost no homesalmost no homes

About 20 Franklin St

When did 20 Franklin St, Dorchester, MA last sell?

20 Franklin St, Dorchester, MA last sold on Oct 18, 1988 for $150,000, according to the county's recorded deed.

How big is 20 Franklin St, Dorchester, MA?

20 Franklin St, Dorchester, MA has 5 bedrooms, 2 bathrooms, 2,559 square feet of living space and a 0.10-acre lot.

When was 20 Franklin St, Dorchester, MA built?

20 Franklin St, Dorchester, MA was built in 1850, making it 176 years old. It is a conventional home. The building has 3 stories.

What schools serve 20 Franklin St, Dorchester, MA?

20 Franklin St, Dorchester, MA is assigned to Richard J. Murphy K-8 School (elementary), rated C; Community Academy Of Science And Health (high), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Franklin St, Dorchester, MA compare to other homes in Dorchester 02122?

Among the 4,918 homes in Dorchester 02122, it is bigger than 64% of them (2,559 ft² against a typical 1,938 ft²), its lot is bigger than 74% of them (0.1 ac against a typical 3,398 ft²) and it is newer than almost none of them (1850 against a typical 1910). 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 Franklin St, Dorchester, MA?

The 2025 property tax bill for 20 Franklin St, Dorchester, MA was $6,957. The county assessed it at $600,800.

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