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Apartments (Generic)Residential

21 DEXTER ST

WALTHAM, MA 02453
6
Beds
4
Baths
4,786 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.
0.21 ac
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.
18
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.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$12,081 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,170,600 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$407,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$763,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,049,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Apartments (Generic)
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.21
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.Asphalt
HeatingThe type of heating system in the home.Hot Water
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(10)

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
Henry Whittemore Elementary SchoolD+
Elementary · Grades KG–5 · 0.5 mi
M
John W. McDevitt Middle SchoolC
Middle · Grades 6–8 · 1.2 mi
H
Waltham Sr High SchoolD+
High · Grades 9–12 · 2.3 mi

District: Waltham School District

Neighborhood · ZIP 02453These 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.106
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
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.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.8%
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.32,080
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,464 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,981
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,606
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 Dexter 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 98% of homes in Middlesex County
  • Has a bigger lot than 80% of homes in Southside
  • Older than 93% of homes in Middlesex County

How it measures up in Waltham 02453

The dot is this home. The mark in the middle is the typical home in Waltham 02453.

Living area4,786 ft²
SmallerTypical 1,872 ft²Bigger

Bigger than 97% of homes nearby

Lot size0.21 ac
SmallerTypical 0.15 acBigger

Bigger than 78% of homes nearby

Year built1890
OlderTypical 1930Newer

Newer than 11% of homes nearby

How 21 Dexter St ranks against every home in each area.
MeasureThis homeSouthsideWaltham 02453Middlesex County
Living areabigger than4,786 ft²96% of homes97% of homes98% of homes
Lot sizebigger than0.21 ac80% of homes78% of homes36% of homes
Year builtnewer than189016% of homes11% of homes7% of homes

About 21 Dexter St

When did 21 Dexter St, Waltham, MA last sell?

21 Dexter St, Waltham, MA last sold on May 17, 2013, according to the county's recorded deed.

How big is 21 Dexter St, Waltham, MA?

21 Dexter St, Waltham, MA has 6 bedrooms, 4 bathrooms, 4,786 square feet of living space and a 0.21-acre lot.

When was 21 Dexter St, Waltham, MA built?

21 Dexter St, Waltham, MA was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 21 Dexter St, Waltham, MA?

21 Dexter St, Waltham, MA is assigned to Henry Whittemore Elementary School (elementary), rated D+; John W. McDevitt Middle School (middle), rated C; Waltham Sr High School (high), rated D+. All sit in Waltham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Dexter St, Waltham, MA compare to other homes in Waltham 02453?

Among the 6,296 homes in Waltham 02453, it is bigger than 97% of them (4,786 ft² against a typical 1,872 ft²), its lot is bigger than 78% of them (0.21 ac against a typical 0.15 ac) and it is newer than 11% of them (1890 against a typical 1930). 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 Dexter St, Waltham, MA?

The 2026 property tax bill for 21 Dexter St, Waltham, MA was $12,081. The county assessed it at $1,170,600.

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