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Apartments (Generic)Residential

9 WINDSOR AVE

ACTON, MA 01720
8
Baths
5,296 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.
0.15 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.
3
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,304 (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.$1,067,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$320,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$747,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,470,980

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.0.15
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
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Paul P. Gates Elementary SchoolA+
Elementary · Grades KG–6 · 0.3 mi
M
R. J. Grey Junior High SchoolA+
Middle · Grades 7–8 · 0.8 mi
H
Acton - Boxborough Regional High SchoolA+
High · Grades 9–12 · 0.9 mi

District: Acton-Boxborough School District

Neighborhood · ZIP 01720These 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.71
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 100.72

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.97%
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.2.6%
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.24,473
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,210 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$148,952
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$187,397
Average tempThe average temperature here across a full year.48°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

9 Windsor Ave 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 Acton 01720
  • Has a smaller lot than 98% of homes in Acton 01720
  • Older than 96% of homes in Acton 01720

How it measures up in Acton 01720

The dot is this home. The mark in the middle is the typical home in Acton 01720.

Living area5,296 ft²
SmallerTypical 2,086 ft²Bigger

Bigger than almost all homes nearby

Lot size0.15 ac
SmallerTypical 0.71 acBigger

Bigger than 2% of homes nearby

Year built1890
OlderTypical 1971Newer

Newer than 4% of homes nearby

How 9 Windsor Ave ranks against every home in each area.
MeasureThis homeActon 01720Middlesex County
Living areabigger than5,296 ft²almost all homes98% of homes
Lot sizebigger than0.15 ac2% of homes24% of homes
Year builtnewer than18904% of homes7% of homes

About 9 Windsor Ave

When did 9 Windsor Ave, Acton, MA last sell?

9 Windsor Ave, Acton, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 9 Windsor Ave, Acton, MA?

9 Windsor Ave, Acton, MA has 8 bathrooms, 5,296 square feet of living space and a 0.15-acre lot.

When was 9 Windsor Ave, Acton, MA built?

9 Windsor Ave, Acton, MA was built in 1890, making it 136 years old. The building has 3 stories.

What schools serve 9 Windsor Ave, Acton, MA?

9 Windsor Ave, Acton, MA is assigned to Paul P. Gates Elementary School (elementary), rated A+; R. J. Grey Junior High School (middle), rated A+; Acton - Boxborough Regional High School (high), rated A+. All sit in Acton-Boxborough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 9 Windsor Ave, Acton, MA compare to other homes in Acton 01720?

Among the 7,508 homes in Acton 01720, it is bigger than almost all of them (5,296 ft² against a typical 2,086 ft²), its lot is bigger than 2% of them (0.15 ac against a typical 0.71 ac) and it is newer than 4% of them (1890 against a typical 1971). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 9 Windsor Ave, Acton, MA?

The 2025 property tax bill for 9 Windsor Ave, Acton, MA was $18,304. The county assessed it at $1,067,300.

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