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Single Family ResidenceResidential
$736,223$373 / 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 Aug 30, 2026
Last sold for $465,000 on Aug 16, 2018

66 HARTWELL AVE

LITTLETON, MA 01460
3
Beds
3 / 1
Baths
1,976 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.
0.93 ac
Lot SizeThe size of the land the home sits on, from county records.
1983
Year BuiltThe year the home was originally built, according to county records.
2
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

$736K
$700K low$773K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$465,000 · Aug 16, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,393 (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.$632,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$227,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$404,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$632,100

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.Split Level
CountyMiddlesex
Lot (acres)The size of the land the home sits on, from county records.0.93
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes

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
Littleton Middle SchoolA
Middle · Grades 6–8 · 0.6 mi
H
Littleton High SchoolA+
High · Grades 9–12 · 0.7 mi
E
Shaker Lane Elementary School
Elementary · Grades PK–2 · 2.3 mi

District: Littleton School District

Neighborhood · ZIP 01460These 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.53
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.77

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.5%
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.10,435
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.593 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$145,801
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$165,869
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

66 Hartwell Ave 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.

  • Costs less per square foot than 74% of homes in Middlesex County
  • Has a bigger lot than 77% of homes in Middlesex County
  • Newer than 74% of homes in Middlesex County

What homes are worth in Littleton 01460

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

This home
$369K$1.3M

This home is worth more than 49% of homes in Littleton 01460.

How it measures up in Littleton 01460

The dot is this home. The mark in the middle is the typical home in Littleton 01460.

Estimated value$736,223
CheaperTypical $745,969Pricier

Pricier than 49% of homes nearby

Price per ft²$373
CheaperTypical $369Pricier

Pricier than 52% of homes nearby

Living area1,976 ft²
SmallerTypical 2,038 ft²Bigger

Bigger than 47% of homes nearby

Lot size0.93 ac
SmallerTypical 0.92 acBigger

Bigger than 58% of homes nearby

Year built1983
OlderTypical 1977Newer

Newer than 56% of homes nearby

How 66 Hartwell Ave ranks against every home in each area.
MeasureThis homeLittleton 01460Middlesex County
Estimated valuepricier than$736,22349% of homes44% of homes
Price per ft²pricier than$37352% of homes26% of homes
Living areabigger than1,976 ft²47% of homes56% of homes
Lot sizebigger than0.93 ac58% of homes77% of homes
Year builtnewer than198356% of homes74% of homes

About 66 Hartwell Ave

How much is 66 Hartwell Ave, Littleton, MA worth?

The TopHap Estimate for 66 Hartwell Ave, Littleton, MA is $736,223 as of Aug 30, 2026. The likely range is $699,604 to $772,842. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 66 Hartwell Ave, Littleton, MA last sell?

66 Hartwell Ave, Littleton, MA last sold on Aug 16, 2018 for $465,000, according to the county's recorded deed.

How big is 66 Hartwell Ave, Littleton, MA?

66 Hartwell Ave, Littleton, MA has 3 bedrooms, 3 bathrooms, 1,976 square feet of living space and a 0.93-acre lot.

When was 66 Hartwell Ave, Littleton, MA built?

66 Hartwell Ave, Littleton, MA was built in 1983, making it 43 years old. It is a split level home. The building has 2 stories.

What schools serve 66 Hartwell Ave, Littleton, MA?

66 Hartwell Ave, Littleton, MA is assigned to Littleton Middle School (middle), rated A; Littleton High School (high), rated A+; Shaker Lane Elementary School (elementary). All sit in Littleton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 66 Hartwell Ave, Littleton, MA compare to other homes in Littleton 01460?

Among the 3,400 homes in Littleton 01460, it is worth more than 49% of them ($736,223 against a typical $745,969), its price per square foot is higher than 52% of them ($373 against a typical $369), it is bigger than 47% of them (1,976 ft² against a typical 2,038 ft²), its lot is bigger than 58% of them (0.93 ac against a typical 0.92 ac) and it is newer than 56% of them (1983 against a typical 1977). Measured against all of Middlesex County, it is worth more than 44% 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 66 Hartwell Ave, Littleton, MA?

The 2025 property tax bill for 66 Hartwell Ave, Littleton, MA was $9,393. The county assessed it at $632,100.

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