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Single Family ResidenceResidential
$746,016$422 / 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 Oct 21, 2026
Last sold for $530,000 on May 10, 2019

21 S CHELMSFORD RD

WESTFORD, MA 01886
3
Beds
2.5
Baths
1,766 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.
0.92 ac
Lot SizeThe size of the land the home sits on, from county records.
1963
Year BuiltThe year the home was originally built, according to county records.
1
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

$746K
$707K low$785K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$530,000 · May 10, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,520 (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.$726,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$353,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$372,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$663,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$733,875

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.Ranch
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.92
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
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(8)

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
Colonel John Robinson Elementary School
Elementary · Grades PK–2 · 2.8 mi
H
Westford AcademyA+
High · Grades 9–12 · 2.9 mi
M
Lloyd G. Blanchard Middle SchoolA+
Middle · Grades 6–8 · 4.0 mi

District: Westford School District

Neighborhood · ZIP 01886These 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.19
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 100.80

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.1.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.25,048
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.803 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$163,754
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$183,117
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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 S Chelmsford Rd 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.

  • Has a bigger lot than 75% of homes in Middlesex County
  • Older than 76% of homes in Westford 01886

What homes are worth in Westford 01886

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

This home
$307K$1.5M

This home is worth more than 41% of homes in Westford 01886.

How it measures up in Westford 01886

The dot is this home. The mark in the middle is the typical home in Westford 01886.

Estimated value$746,016
CheaperTypical $809,169Pricier

Pricier than 41% of homes nearby

Price per ft²$422
CheaperTypical $408Pricier

Pricier than 59% of homes nearby

Living area1,766 ft²
SmallerTypical 2,075 ft²Bigger

Bigger than 36% of homes nearby

Lot size0.92 ac
SmallerTypical 0.92 acBigger

Bigger than 43% of homes nearby

Year built1963
OlderTypical 1984Newer

Newer than 24% of homes nearby

How 21 S Chelmsford Rd ranks against every home in each area.
MeasureThis homeWestford 01886Middlesex County
Estimated valuepricier than$746,01641% of homes46% of homes
Price per ft²pricier than$42259% of homes40% of homes
Living areabigger than1,766 ft²36% of homes47% of homes
Lot sizebigger than0.92 ac43% of homes75% of homes
Year builtnewer than196324% of homes57% of homes

About 21 S Chelmsford Rd

How much is 21 S Chelmsford Rd, Westford, MA worth?

The TopHap Estimate for 21 S Chelmsford Rd, Westford, MA is $746,016 as of Oct 21, 2026. The likely range is $707,185 to $784,847. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 S Chelmsford Rd, Westford, MA last sell?

21 S Chelmsford Rd, Westford, MA last sold on May 10, 2019 for $530,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 S Chelmsford Rd, Westford, MA?

21 S Chelmsford Rd, Westford, MA has 3 bedrooms, 2.5 bathrooms, 1,766 square feet of living space and a 0.92-acre lot.

When was 21 S Chelmsford Rd, Westford, MA built?

21 S Chelmsford Rd, Westford, MA was built in 1963, making it 63 years old. It is a ranch home. The building has 1 story.

What schools serve 21 S Chelmsford Rd, Westford, MA?

21 S Chelmsford Rd, Westford, MA is assigned to Colonel John Robinson Elementary School (elementary); Westford Academy (high), rated A+; Lloyd G. Blanchard Middle School (middle), rated A+. All sit in Westford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 S Chelmsford Rd, Westford, MA compare to other homes in Westford 01886?

Among the 8,171 homes in Westford 01886, it is worth more than 41% of them ($746,016 against a typical $809,169), its price per square foot is higher than 59% of them ($422 against a typical $408), it is bigger than 36% of them (1,766 ft² against a typical 2,075 ft²), its lot is bigger than 43% of them (0.92 ac against a typical 0.92 ac) and it is newer than 24% of them (1963 against a typical 1984). Measured against all of Middlesex County, it is worth more than 46% 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 S Chelmsford Rd, Westford, MA?

The 2026 property tax bill for 21 S Chelmsford Rd, Westford, MA was $9,520. The county assessed it at $726,200.

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