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Single Family ResidenceResidential
$423,127$326 / 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 95How 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

40 LLEWELLYN ST

LOWELL, MA 01850
3
Beds
1
Baths
1,296 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$423K
$400K low$446K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,287 (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.$465,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$175,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$290,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$432,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$432,984

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.0.21
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Steam
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
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(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 SchoolD-
Middle · Grades 5–8 · 0.8 mi
E
Moody Elementary SchoolD
Elementary · Grades PK–4 · 0.8 mi
H
Lowell High SchoolD
High · Grades 9–12 · 1.0 mi

District: Lowell School District

Neighborhood · ZIP 01850These 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.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.82

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.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.16,865
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.11,591 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,769
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$72,358
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

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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

40 Llewellyn 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 91% of homes in Middlesex County
  • Costs less per square foot than 86% of homes in Middlesex County
  • Smaller than 76% of homes in Middlesex County
  • Has a bigger lot than 70% of homes in Lowell 01850
  • Older than 68% of homes in Middlesex County

What homes are worth in Lowell 01850

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

This home
$199K$631K

This home is worth more than 52% of homes in Lowell 01850.

How it measures up in Lowell 01850

The dot is this home. The mark in the middle is the typical home in Lowell 01850.

Estimated value$423,127
CheaperTypical $418,172Pricier

Pricier than 52% of homes nearby

Price per ft²$326
CheaperTypical $301Pricier

Pricier than 69% of homes nearby

Living area1,296 ft²
SmallerTypical 1,565 ft²Bigger

Bigger than 34% of homes nearby

Lot size0.21 ac
SmallerTypical 0.14 acBigger

Bigger than 70% of homes nearby

Year built1930
OlderTypical 1925Newer

Newer than 60% of homes nearby

How 40 Llewellyn St ranks against every home in each area.
MeasureThis homeLowell 01850Middlesex County
Estimated valuepricier than$423,12752% of homes9% of homes
Price per ft²pricier than$32669% of homes14% of homes
Living areabigger than1,296 ft²34% of homes24% of homes
Lot sizebigger than0.21 ac70% of homes36% of homes
Year builtnewer than193060% of homes32% of homes

About 40 Llewellyn St

How much is 40 Llewellyn St, Lowell, MA worth?

The TopHap Estimate for 40 Llewellyn St, Lowell, MA is $423,127 as of Sep 24, 2026. The likely range is $400,348 to $445,906. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 40 Llewellyn St, Lowell, MA last sell?

40 Llewellyn St, Lowell, MA last sold on Jan 1, 1900, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 40 Llewellyn St, Lowell, MA?

40 Llewellyn St, Lowell, MA has 3 bedrooms, 1 bathrooms, 1,296 square feet of living space and a 0.21-acre lot.

When was 40 Llewellyn St, Lowell, MA built?

40 Llewellyn St, Lowell, MA was built in 1930, making it 96 years old. It is a conventional home. The building has 2 stories.

What schools serve 40 Llewellyn St, Lowell, MA?

40 Llewellyn St, Lowell, MA is assigned to James Sullivan Middle School (middle), rated D-; Moody Elementary School (elementary), rated D; Lowell High School (high), rated D. All sit in Lowell School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Llewellyn St, Lowell, MA compare to other homes in Lowell 01850?

Among the 3,731 homes in Lowell 01850, it is worth more than 52% of them ($423,127 against a typical $418,172), its price per square foot is higher than 69% of them ($326 against a typical $301), it is bigger than 34% of them (1,296 ft² against a typical 1,565 ft²), its lot is bigger than 70% of them (0.21 ac against a typical 0.14 ac) and it is newer than 60% of them (1930 against a typical 1925). Measured against all of Middlesex County, it is worth more than 9% 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 40 Llewellyn St, Lowell, MA?

The 2026 property tax bill for 40 Llewellyn St, Lowell, MA was $5,287. The county assessed it at $465,800.

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