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CondominiumResidential
$383,751$321 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $417,000 on Apr 11, 2022

21 ACTON ST

LOWELL, MA 01852
2
Beds
1.5
Baths
1,195 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.
2002
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$384K
$354K low$413K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$417,000 · Apr 11, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,059 (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.$445,700 (2026)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$445,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$419,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$421,078

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.1 percent flood zone

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
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMIDDLESEX
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(6)

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
Pyne ArtsC
Elementary · Grades PK–8 · 0.5 mi
H
Leblanc Therapeutic Day School
High · Grades 9–12 · 1.0 mi

District: Lowell School District

Neighborhood · ZIP 01852These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.87

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.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
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.38,007
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,196 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$68,803
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,531
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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 Acton 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.

  • Worth less than 94% of homes in Middlesex County
  • Costs less per square foot than 87% of homes in Middlesex County
  • Smaller than 81% of homes in Middlesex County
  • Has a smaller lot than 75% of homes in South Lowell
  • Newer than 96% of homes in South Lowell

What homes are worth in Lowell 01852

Each bar is how many homes fall in that price range. The marker is this home.

This home
$212K$864K

This home is worth more than 34% of homes in Lowell 01852.

How it measures up in Lowell 01852

The dot is this home. The mark in the middle is the typical home in Lowell 01852.

Estimated value$383,751
CheaperTypical $438,053Pricier

Pricier than 34% of homes nearby

Price per ft²$321
CheaperTypical $307Pricier

Pricier than 57% of homes nearby

Living area1,195 ft²
SmallerTypical 1,540 ft²Bigger

Bigger than 25% of homes nearby

Lot size0.15 ac
SmallerTypical 0.2 acBigger

Bigger than 39% of homes nearby

Year built2002
OlderTypical 1950Newer

Newer than 92% of homes nearby

How 21 Acton St ranks against every home in each area.
MeasureThis homeSouth LowellLowell 01852Middlesex County
Estimated valuepricier than$383,75159% of homes34% of homes6% of homes
Price per ft²pricier than$32182% of homes57% of homes13% of homes
Living areabigger than1,195 ft²37% of homes25% of homes19% of homes
Lot sizebigger than0.15 ac25% of homes39% of homes25% of homes
Year builtnewer than200296% of homes92% of homes90% of homes

About 21 Acton St

How much is 21 Acton St, Lowell, MA worth?

The TopHap Estimate for 21 Acton St, Lowell, MA is $383,751 as of Oct 21, 2026. The likely range is $354,198 to $413,304. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

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

21 Acton St, Lowell, MA last sold on Apr 11, 2022 for $417,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 21 Acton St, Lowell, MA?

21 Acton St, Lowell, MA has 2 bedrooms, 1.5 bathrooms and 1,195 square feet of living space.

When was 21 Acton St, Lowell, MA built?

21 Acton St, Lowell, MA was built in 2002, making it 24 years old. It is a condo/apartment home. The building has 3 stories.

What schools serve 21 Acton St, Lowell, MA?

21 Acton St, Lowell, MA is assigned to Pyne Arts (elementary), rated C; Leblanc Therapeutic Day School (high). All sit in Lowell School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Acton St, Lowell, MA compare to other homes in Lowell 01852?

Among the 8,439 homes in Lowell 01852, it is worth more than 34% of them ($383,751 against a typical $438,053), its price per square foot is higher than 57% of them ($321 against a typical $307), it is bigger than 25% of them (1,195 ft² against a typical 1,540 ft²), its lot is bigger than 39% of them (0.15 ac against a typical 0.2 ac) and it is newer than 92% of them (2002 against a typical 1950). Measured against all of Middlesex County, it is worth more than 6% of homes there. 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 Acton St, Lowell, MA?

The 2026 property tax bill for 21 Acton St, Lowell, MA was $5,059. The county assessed it at $445,700.

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