Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$368,824$201 / 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 97How 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

20 B ST

LOWELL, MA 01851
3
Beds
2
Baths
1,839 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.
3,920 ft²
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$369K
$359K low$379K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,184 (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.$451,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$142,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$308,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$472,340

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.0.09
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
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(14)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

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

M
Laura Lee Therapeutic Day SchoolB
Middle · Grades 5–8 · 0.2 mi
E
Abraham LincolnB-
Elementary · Grades PK–4 · 0.2 mi
H
Lowell High SchoolC-
High · Grades 9–12 · 1.4 mi

District: Lowell School District

Neighborhood · ZIP 01851These 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.111
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.85

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
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.33,136
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.9,695 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,238
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,324
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%

Owner Tools

Do you own this home?
Claim this home

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

20 B 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
  • Among the lowest price per square foot in Middlesex County
  • Has a smaller lot than 92% of homes in Middlesex County
  • Older than 85% of homes in Middlesex County

What homes are worth in Lowell 01851

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

This home
$209K$743K

This home is worth more than 26% of homes in Lowell 01851.

How it measures up in Lowell 01851

The dot is this home. The mark in the middle is the typical home in Lowell 01851.

Estimated value$368,824
CheaperTypical $464,889Pricier

Pricier than 26% of homes nearby

Price per ft²$201
CheaperTypical $300Pricier

Pricier than 8% of homes nearby

Living area1,839 ft²
SmallerTypical 1,755 ft²Bigger

Bigger than 54% of homes nearby

Lot size3,920 ft²
SmallerTypical 0.14 acBigger

Bigger than 12% of homes nearby

Year built1900
OlderTypical 1920Newer

Newer than 34% of homes nearby

How 20 B St ranks against every home in each area.
MeasureThis homeLower HighlandsLowell 01851Middlesex County
Estimated valuepricier than$368,82459% of homes26% of homes6% of homes
Price per ft²pricier than$20117% of homes8% of homesalmost no homes
Living areabigger than1,839 ft²51% of homes54% of homes50% of homes
Lot sizebigger than3,920 ft²26% of homes12% of homes8% of homes
Year builtnewer than190051% of homes34% of homes15% of homes

About 20 B St

How much is 20 B St, Lowell, MA worth?

The TopHap Estimate for 20 B St, Lowell, MA is $368,824 as of Sep 24, 2026. The likely range is $358,507 to $379,141. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 B St, Lowell, MA last sell?

20 B St, Lowell, MA last sold on Aug 20, 2021, according to the county's recorded deed. TopHap holds 7 recorded sales for this parcel.

How big is 20 B St, Lowell, MA?

20 B St, Lowell, MA has 3 bedrooms, 2 bathrooms, 1,839 square feet of living space and a 0.09-acre lot.

When was 20 B St, Lowell, MA built?

20 B St, Lowell, MA was built in 1900, making it 126 years old. It is a conventional home. The building has 1 story.

What schools serve 20 B St, Lowell, MA?

20 B St, Lowell, MA is assigned to Laura Lee Therapeutic Day School (middle), rated B; Abraham Lincoln (elementary), rated B-; Lowell High School (high), rated C-. All sit in Lowell School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 B St, Lowell, MA compare to other homes in Lowell 01851?

Among the 5,774 homes in Lowell 01851, it is worth more than 26% of them ($368,824 against a typical $464,889), its price per square foot is higher than 8% of them ($201 against a typical $300), it is bigger than 54% of them (1,839 ft² against a typical 1,755 ft²), its lot is bigger than 12% of them (3,920 ft² against a typical 0.14 ac) and it is newer than 34% of them (1900 against a typical 1920). 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 20 B St, Lowell, MA?

The 2025 property tax bill for 20 B St, Lowell, MA was $5,184. The county assessed it at $451,600.

More homes on B St

Closest homes

More homes in Lowell 01851

Assigned schools

Explore the area

See this home in context

Open 20 B St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map