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Triplex (3 Units, Any Combination)Residential

21 SEYMOUR ST

ROSLINDALE, MA 02131
6
Beds
3
Baths
3,193 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1935
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
15
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
6
ParkingThe number of parking spaces on the property, including the garage.

Valuation

1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$595,800
LOANDEPOT.COM LLC · R · recorded Dec 8, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,512 (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.$821,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$262,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$558,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$821,400

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Triplex (3 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.0.14
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water

Transaction History(3)

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.

M
Washington Irving Middle School
Middle · Grades 6–8 · 0.3 mi
E
George H. Conley Elementary SchoolD-
Elementary · Grades PK–5 · 0.4 mi
H
Another Course To CollegeF
High · Grades 9–12 · 1.1 mi

District: Boston School District

Neighborhood · ZIP 02131These 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.70
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.29,422
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10,044 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$104,779
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$134,833
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

21 Seymour 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 92% of homes in Roslindale 02131
  • Has a bigger lot than 83% of homes in Suffolk County
  • Newer than 68% of homes in Roslindale 02131

How it measures up in Roslindale 02131

The dot is this home. The mark in the middle is the typical home in Roslindale 02131.

Living area3,193 ft²
SmallerTypical 1,650 ft²Bigger

Bigger than 92% of homes nearby

Lot size0.14 ac
SmallerTypical 0.11 acBigger

Bigger than 76% of homes nearby

Year built1935
OlderTypical 1920Newer

Newer than 68% of homes nearby

How 21 Seymour St ranks against every home in each area.
MeasureThis homeRoslindale 02131Suffolk County
Living areabigger than3,193 ft²92% of homes87% of homes
Lot sizebigger than0.14 ac76% of homes83% of homes
Year builtnewer than193568% of homes64% of homes

About 21 Seymour St

How big is 21 Seymour St, Roslindale, MA?

21 Seymour St, Roslindale, MA has 6 bedrooms, 3 bathrooms, 3,193 square feet of living space and a 0.14-acre lot.

When was 21 Seymour St, Roslindale, MA built?

21 Seymour St, Roslindale, MA was built in 1935, making it 91 years old. It is a conventional home. The building has 3 stories.

What schools serve 21 Seymour St, Roslindale, MA?

21 Seymour St, Roslindale, MA is assigned to Washington Irving Middle School (middle); George H. Conley Elementary School (elementary), rated D-; Another Course To College (high), rated F. All sit in Boston School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Seymour St, Roslindale, MA compare to other homes in Roslindale 02131?

Among the 7,665 homes in Roslindale 02131, it is bigger than 92% of them (3,193 ft² against a typical 1,650 ft²), its lot is bigger than 76% of them (0.14 ac against a typical 0.11 ac) and it is newer than 68% of them (1935 against a typical 1920). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21 Seymour St, Roslindale, MA?

The 2025 property tax bill for 21 Seymour St, Roslindale, MA was $9,512. The county assessed it at $821,400.

Closest homes

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Assigned schools

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