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CondominiumResidential
Last sold for $340,000 on Aug 1, 2019

21 SPRUCE ST

ACTON, MA 01720
2
Beds
1.5
Baths
1,345 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.
0.84 ac
Lot SizeThe size of the land the home sits on, from county records.
2011
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$340,000 · Aug 1, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,565 (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.$499,400 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$499,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$464,740

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.54
78
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
8
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
95
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
33
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.49 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyMIDDLESEX
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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
Paul P. Gates Elementary SchoolA+
Elementary · Grades KG–6 · 0.2 mi
M
R. J. Grey Junior High SchoolA
Middle · Grades 7–8 · 0.7 mi
H
Acton - Boxborough Regional High SchoolA
High · Grades 9–12 · 0.7 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

21 Spruce 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.

  • Smaller than 76% of homes in Acton 01720
  • Has a bigger lot than 75% of homes in Middlesex County
  • Newer than 95% of homes in Middlesex County

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 area1,345 ft²
SmallerTypical 2,086 ft²Bigger

Bigger than 24% of homes nearby

Lot size0.84 ac
SmallerTypical 0.71 acBigger

Bigger than 56% of homes nearby

Year built2011
OlderTypical 1971Newer

Newer than 93% of homes nearby

How 21 Spruce St ranks against every home in each area.
MeasureThis homeActon 01720Middlesex County
Living areabigger than1,345 ft²24% of homes27% of homes
Lot sizebigger than0.84 ac56% of homes75% of homes
Year builtnewer than201193% of homes95% of homes

About 21 Spruce St

When did 21 Spruce St, Acton, MA last sell?

21 Spruce St, Acton, MA last sold on Aug 1, 2019 for $340,000, according to the county's recorded deed.

How big is 21 Spruce St, Acton, MA?

21 Spruce St, Acton, MA has 2 bedrooms, 1.5 bathrooms and 1,345 square feet of living space.

When was 21 Spruce St, Acton, MA built?

21 Spruce St, Acton, MA was built in 2011, making it 15 years old. The building has 2 stories.

What schools serve 21 Spruce St, Acton, MA?

21 Spruce St, 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 21 Spruce St, Acton, MA compare to other homes in Acton 01720?

Among the 7,508 homes in Acton 01720, it is bigger than 24% of them (1,345 ft² against a typical 2,086 ft²), its lot is bigger than 56% of them (0.84 ac against a typical 0.71 ac) and it is newer than 93% of them (2011 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 21 Spruce St, Acton, MA?

The 2025 property tax bill for 21 Spruce St, Acton, MA was $8,565. The county assessed it at $499,400.

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