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Single Family ResidenceResidential
$844,395$495 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $845,000 on May 1, 2026

122 M ST

SOUTH BOSTON, MA 02127
2
Beds
1
Baths
1,705 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.
925 ft²
Lot SizeThe size of the land the home sits on, from county records.
1870
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.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$844K
$791K low$898K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$845,000 · May 1, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,648 (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.$919,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$354,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$564,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,609,490

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.02
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Oliver Hazard Perry K-8 SchoolB-
Elementary · Grades PK–8 · 0.2 mi
H
Excel High SchoolD-
High · Grades 9–12 · 0.6 mi

District: Boston School District

Neighborhood · ZIP 02127These 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.110
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.79

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.44%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.37,644
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.15,131 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$146,200
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$170,961
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

122 M 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 more than 66% of homes in Suffolk County
  • Costs less per square foot than 98% of homes in South Boston 02127
  • Bigger than 73% of homes in South Boston 02127
  • Has a smaller lot than 78% of homes in Suffolk County
  • Among the oldest homes in South Boston 02127

What homes are worth in South Boston 02127

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

This home
$442K$1.9M

This home is worth more than 50% of homes in South Boston 02127.

How it measures up in South Boston 02127

The dot is this home. The mark in the middle is the typical home in South Boston 02127.

Estimated value$844,395
CheaperTypical $844,884Pricier

Pricier than 50% of homes nearby

Price per ft²$495
CheaperTypical $805Pricier

Pricier than 2% of homes nearby

Living area1,705 ft²
SmallerTypical 1,203 ft²Bigger

Bigger than 73% of homes nearby

Lot size925 ft²
SmallerTypical 1,220 ft²Bigger

Bigger than 29% of homes nearby

Year built1870
OlderTypical 1905Newer

Older than almost all homes nearby

How 122 M St ranks against every home in each area.
MeasureThis homeSouth Boston 02127Suffolk County
Estimated valuepricier than$844,39550% of homes66% of homes
Price per ft²pricier than$4952% of homes31% of homes
Living areabigger than1,705 ft²73% of homes58% of homes
Lot sizebigger than925 ft²29% of homes22% of homes
Year builtnewer than1870almost no homes3% of homes

About 122 M St

How much is 122 M St, South Boston, MA worth?

The TopHap Estimate for 122 M St, South Boston, MA is $844,395 as of Sep 24, 2026. The likely range is $790,761 to $898,029. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 122 M St, South Boston, MA last sell?

122 M St, South Boston, MA last sold on May 1, 2026 for $845,000, according to the county's recorded deed.

How big is 122 M St, South Boston, MA?

122 M St, South Boston, MA has 2 bedrooms, 1 bathrooms, 1,705 square feet of living space and a 0.02-acre lot.

When was 122 M St, South Boston, MA built?

122 M St, South Boston, MA was built in 1870, making it 156 years old. The building has 3 stories.

What schools serve 122 M St, South Boston, MA?

122 M St, South Boston, MA is assigned to Oliver Hazard Perry K-8 School (elementary), rated B-; Excel High School (high), rated D-. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 122 M St, South Boston, MA compare to other homes in South Boston 02127?

Among the 11,103 homes in South Boston 02127, it is worth more than 50% of them ($844,395 against a typical $844,884), its price per square foot is higher than 2% of them ($495 against a typical $805), it is bigger than 73% of them (1,705 ft² against a typical 1,203 ft²), its lot is bigger than 29% of them (925 ft² against a typical 1,220 ft²) and it is newer than almost none of them (1870 against a typical 1905). Measured against all of Suffolk County, it is worth more than 66% 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 122 M St, South Boston, MA?

The 2025 property tax bill for 122 M St, South Boston, MA was $10,648. The county assessed it at $919,500.

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Assigned schools

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