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Religious, Church, Worship (Synagogue, Temple, Parsonage)Other / Unknown

21 MARATHON ST

ARLINGTON, MA 02474
4 / 2
Baths
6,686 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1918
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Tax & Assessment

Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,216,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$655,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$561,600

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Religious, Church, Worship (Synagogue, Temple, Parsonage)
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.16
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Slate
HeatingThe type of heating system in the home.Steam
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
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
R.J. Hardy Elementary SchoolA
Elementary · Grades KG–5 · 0.3 mi
H
Arlington High SchoolA+
High · Grades 9–12 · 1.4 mi
M
Ottoson Middle SchoolA+
Middle · Grades 7–8 · 2.1 mi

District: Arlington School District

Neighborhood · ZIP 02474These 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.93
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
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.28,960
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,757 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$135,066
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,393
Average tempThe average temperature here across a full year.49°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

21 Marathon 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.

  • Among the largest homes in Arlington 02474
  • Has a smaller lot than 74% of homes in Middlesex County
  • Older than 81% of homes in Arlington 02474

How it measures up in Arlington 02474

The dot is this home. The mark in the middle is the typical home in Arlington 02474.

Living area6,686 ft²
SmallerTypical 1,980 ft²Bigger

Bigger than almost all homes nearby

Lot size0.16 ac
SmallerTypical 0.14 acBigger

Bigger than 62% of homes nearby

Year built1918
OlderTypical 1932Newer

Newer than 19% of homes nearby

How 21 Marathon St ranks against every home in each area.
MeasureThis homeArlington 02474Middlesex County
Living areabigger than6,686 ft²almost all homesalmost all homes
Lot sizebigger than0.16 ac62% of homes26% of homes
Year builtnewer than191819% of homes21% of homes

About 21 Marathon St

When did 21 Marathon St, Arlington, MA last sell?

21 Marathon St, Arlington, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Marathon St, Arlington, MA?

21 Marathon St, Arlington, MA has 4 bathrooms, 6,686 square feet of living space and a 0.16-acre lot.

When was 21 Marathon St, Arlington, MA built?

21 Marathon St, Arlington, MA was built in 1918, making it 108 years old. It is a colonial home. The building has 1 story.

What schools serve 21 Marathon St, Arlington, MA?

21 Marathon St, Arlington, MA is assigned to R.J. Hardy Elementary School (elementary), rated A; Arlington High School (high), rated A+; Ottoson Middle School (middle), rated A+. All sit in Arlington School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Marathon St, Arlington, MA compare to other homes in Arlington 02474?

Among the 8,570 homes in Arlington 02474, it is bigger than almost all of them (6,686 ft² against a typical 1,980 ft²), its lot is bigger than 62% of them (0.16 ac against a typical 0.14 ac) and it is newer than 19% of them (1918 against a typical 1932). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

More homes on Marathon St

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Assigned schools

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