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Single Family ResidenceResidential
$489,760$250 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

21 FROTHINGHAM ST

LOWELL, MA 01852
4
Beds
1.5
Baths
1,956 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1935
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$490K
$458K low$521K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,408 (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.$558,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$197,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$361,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$568,955

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.13
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Steam
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

M
James Sullivan Middle SchoolC-
Middle · Grades 5–8 · 0.3 mi
E
Peter W ReillyB+
Elementary · Grades PK–4 · 0.3 mi
H
Leblanc Therapeutic Day School
High · Grades 9–12 · 0.6 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 Frothingham 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 86% of homes in Middlesex County
  • Costs less per square foot than 97% of homes in Middlesex County
  • Bigger than 67% of homes in Lowell 01852
  • Has a smaller lot than 84% of homes in Belvidere
  • Older than 67% of homes in Belvidere

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
$209K$877K

This home is worth more than 64% 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$489,760
CheaperTypical $439,204Pricier

Pricier than 64% of homes nearby

Price per ft²$250
CheaperTypical $306Pricier

Pricier than 22% of homes nearby

Living area1,956 ft²
SmallerTypical 1,538 ft²Bigger

Bigger than 67% of homes nearby

Lot size0.13 ac
SmallerTypical 0.19 acBigger

Bigger than 32% of homes nearby

Year built1935
OlderTypical 1950Newer

Newer than 46% of homes nearby

How 21 Frothingham St ranks against every home in each area.
MeasureThis homeBelvidereLowell 01852Middlesex County
Estimated valuepricier than$489,76035% of homes64% of homes14% of homes
Price per ft²pricier than$25018% of homes22% of homes3% of homes
Living areabigger than1,956 ft²60% of homes67% of homes55% of homes
Lot sizebigger than0.13 ac16% of homes32% of homes21% of homes
Year builtnewer than193533% of homes46% of homes34% of homes

About 21 Frothingham St

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

The TopHap Estimate for 21 Frothingham St, Lowell, MA is $489,760 as of Sep 24, 2026. The likely range is $458,418 to $521,102. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

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

21 Frothingham St, Lowell, MA last sold on Dec 30, 2013, according to the county's recorded deed.

How big is 21 Frothingham St, Lowell, MA?

21 Frothingham St, Lowell, MA has 4 bedrooms, 1.5 bathrooms, 1,956 square feet of living space and a 0.13-acre lot.

When was 21 Frothingham St, Lowell, MA built?

21 Frothingham St, Lowell, MA was built in 1935, making it 91 years old. It is a conventional home. The building has 2 stories.

What schools serve 21 Frothingham St, Lowell, MA?

21 Frothingham St, Lowell, MA is assigned to James Sullivan Middle School (middle), rated C-; Peter W Reilly (elementary), rated B+; 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 Frothingham St, Lowell, MA compare to other homes in Lowell 01852?

Among the 8,439 homes in Lowell 01852, it is worth more than 64% of them ($489,760 against a typical $439,204), its price per square foot is higher than 22% of them ($250 against a typical $306), it is bigger than 67% of them (1,956 ft² against a typical 1,538 ft²), its lot is bigger than 32% of them (0.13 ac against a typical 0.19 ac) and it is newer than 46% of them (1935 against a typical 1950). Measured against all of Middlesex County, it is worth more than 14% 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 Frothingham St, Lowell, MA?

The 2025 property tax bill for 21 Frothingham St, Lowell, MA was $6,408. The county assessed it at $558,200.

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