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Duplex (2 Units, Any Combination)Residential

42 LEONARD ST

DORCHESTER, MA 02122
4
Beds
2
Baths
1,550 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.
1,910 ft²
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,455 (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.$557,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$169,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$388,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$543,600

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.48 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.36%
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)
CountySuffolk
Lot (acres)The size of the land the home sits on, from county records.0.04
HeatingThe type of heating system in the home.Electric
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.

H
Community Academy Of Science And HealthF
High · Grades 9–12 · 0.2 mi
E
Mather Elementary SchoolD+
Elementary · Grades PK–5 · 0.5 mi
M
Up Academy DorchesterD-
Middle · Grades PK–12 · 0.7 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

42 Leonard 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.

  • Smaller than 68% of homes in Dorchester
  • Has a smaller lot than 78% of homes in Dorchester
  • Older than 92% of homes in Dorchester 02122

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 area1,550 ft²
SmallerTypical 1,922 ft²Bigger

Bigger than 41% of homes nearby

Lot size1,910 ft²
SmallerTypical 3,441 ft²Bigger

Bigger than 29% of homes nearby

Year built1890
OlderTypical 1910Newer

Newer than 8% of homes nearby

How 42 Leonard St ranks against every home in each area.
MeasureThis homeDorchesterDorchester 02122Suffolk County
Living areabigger than1,550 ft²32% of homes41% of homes53% of homes
Lot sizebigger than1,910 ft²22% of homes29% of homes45% of homes
Year builtnewer than189010% of homes8% of homes13% of homes

About 42 Leonard St

How big is 42 Leonard St, Dorchester, MA?

42 Leonard St, Dorchester, MA has 4 bedrooms, 2 bathrooms, 1,550 square feet of living space and a 0.04-acre lot.

When was 42 Leonard St, Dorchester, MA built?

42 Leonard St, Dorchester, MA was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 42 Leonard St, Dorchester, MA?

42 Leonard St, Dorchester, MA is assigned to Community Academy Of Science And Health (high), rated F; Mather Elementary School (elementary), rated D+; Up Academy Dorchester (middle), rated D-. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 42 Leonard St, Dorchester, MA compare to other homes in Dorchester 02122?

Among the 4,918 homes in Dorchester 02122, it is bigger than 41% of them (1,550 ft² against a typical 1,922 ft²), its lot is bigger than 29% of them (1,910 ft² against a typical 3,441 ft²) and it is newer than 8% of them (1890 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 42 Leonard St, Dorchester, MA?

The 2025 property tax bill for 42 Leonard St, Dorchester, MA was $6,455. The county assessed it at $557,400.

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