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Duplex (2 Units, Any Combination)Residential
Last sold for $180,000 on Jul 24, 1991

51 ALLSTON ST

CHARLESTOWN, MA 02129
4
Beds
2.5
Baths
2,274 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.
1,123 ft²
Lot SizeThe size of the land the home sits on, from county records.
1885
Year BuiltThe year the home was originally built, according to county records.
3
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.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$180,000 · Jul 24, 1991

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,516 (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.$994,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$262,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$732,200

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.27%
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.0.03
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(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.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Charlestown High SchoolF
High · Grades 9–12 · 0.1 mi
E
Warren / Prescott K-8 SchoolA-
Elementary · Grades PK–8 · 0.2 mi

District: Boston School District

Neighborhood · ZIP 02129These 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.89
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.73

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.3%
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.18,397
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,594 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$152,177
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$178,903
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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

51 Allston 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 86% of homes in Charlestown 02129
  • Has a smaller lot than 71% of homes in Suffolk County
  • Older than 93% of homes in Suffolk County

How it measures up in Charlestown 02129

The dot is this home. The mark in the middle is the typical home in Charlestown 02129.

Living area2,274 ft²
SmallerTypical 1,200 ft²Bigger

Bigger than 86% of homes nearby

Lot size1,123 ft²
SmallerTypical 1,133 ft²Bigger

Bigger than 50% of homes nearby

Year built1885
OlderTypical 1899Newer

Newer than 40% of homes nearby

How 51 Allston St ranks against every home in each area.
MeasureThis homeCharlestown 02129Suffolk County
Living areabigger than2,274 ft²86% of homes72% of homes
Lot sizebigger than1,123 ft²50% of homes29% of homes
Year builtnewer than188540% of homes7% of homes

About 51 Allston St

When did 51 Allston St, Charlestown, MA last sell?

51 Allston St, Charlestown, MA last sold on Jul 24, 1991 for $180,000, according to the county's recorded deed.

How big is 51 Allston St, Charlestown, MA?

51 Allston St, Charlestown, MA has 4 bedrooms, 2.5 bathrooms, 2,274 square feet of living space and a 0.03-acre lot.

When was 51 Allston St, Charlestown, MA built?

51 Allston St, Charlestown, MA was built in 1885, making it 141 years old. It is a conventional home. The building has 3 stories.

What schools serve 51 Allston St, Charlestown, MA?

51 Allston St, Charlestown, MA is assigned to Charlestown High School (high), rated F; Warren / Prescott K-8 School (elementary), rated A-. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 51 Allston St, Charlestown, MA compare to other homes in Charlestown 02129?

Among the 5,261 homes in Charlestown 02129, it is bigger than 86% of them (2,274 ft² against a typical 1,200 ft²), its lot is bigger than 50% of them (1,123 ft² against a typical 1,133 ft²) and it is newer than 40% of them (1885 against a typical 1899). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 51 Allston St, Charlestown, MA?

The 2025 property tax bill for 51 Allston St, Charlestown, MA was $11,516. The county assessed it at $994,500.

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