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Single Family ResidenceResidential
$780,486$405 / 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 Oct 21, 2026
Last sold for $655,000 on Mar 25, 2022

121 WESTFORD ST

CHELMSFORD, MA 01824
3
Beds
2.5
Baths
1,926 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.
1.73 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
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

$780K
$734K low$826K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$655,000 · Mar 25, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,312 (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.$701,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$368,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$333,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$662,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$719,625

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.1.73
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

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
Col Moses Parker SchoolA-
Middle · Grades 5–6 · 1.3 mi
H
Chelmsford High SchoolA-
High · Grades 9–12 · 1.3 mi
E
Byam SchoolB+
Elementary · Grades KG–4 · 2.1 mi

District: Chelmsford School District

Neighborhood · ZIP 01824These 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.68
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.81

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.9%
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.27,961
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,525 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,207
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$151,835
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

121 Westford 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 more than 73% of homes in Chelmsford 01824
  • Costs less per square foot than 65% of homes in Middlesex County
  • Has a bigger lot than 86% of homes in Middlesex County

What homes are worth in Chelmsford 01824

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

This home
$323K$1.2M

This home is worth more than 73% of homes in Chelmsford 01824.

How it measures up in Chelmsford 01824

The dot is this home. The mark in the middle is the typical home in Chelmsford 01824.

Estimated value$780,486
CheaperTypical $680,392Pricier

Pricier than 73% of homes nearby

Price per ft²$405
CheaperTypical $395Pricier

Pricier than 55% of homes nearby

Living area1,926 ft²
SmallerTypical 1,666 ft²Bigger

Bigger than 63% of homes nearby

Lot size1.73 ac
SmallerTypical 0.8 acBigger

Bigger than 85% of homes nearby

Year built1966
OlderTypical 1965Newer

Newer than 56% of homes nearby

How 121 Westford St ranks against every home in each area.
MeasureThis homeChelmsford 01824Middlesex County
Estimated valuepricier than$780,48673% of homes50% of homes
Price per ft²pricier than$40555% of homes35% of homes
Living areabigger than1,926 ft²63% of homes54% of homes
Lot sizebigger than1.73 ac85% of homes86% of homes
Year builtnewer than196656% of homes60% of homes

About 121 Westford St

How much is 121 Westford St, Chelmsford, MA worth?

The TopHap Estimate for 121 Westford St, Chelmsford, MA is $780,486 as of Oct 21, 2026. The likely range is $734,477 to $826,495. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 121 Westford St, Chelmsford, MA last sell?

121 Westford St, Chelmsford, MA last sold on Mar 25, 2022 for $655,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 121 Westford St, Chelmsford, MA?

121 Westford St, Chelmsford, MA has 3 bedrooms, 2.5 bathrooms, 1,926 square feet of living space and a 1.73-acre lot.

When was 121 Westford St, Chelmsford, MA built?

121 Westford St, Chelmsford, MA was built in 1966, making it 60 years old. It is a ranch home. The building has 1 story.

What schools serve 121 Westford St, Chelmsford, MA?

121 Westford St, Chelmsford, MA is assigned to Col Moses Parker School (middle), rated A-; Chelmsford High School (high), rated A-; Byam School (elementary), rated B+. All sit in Chelmsford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 121 Westford St, Chelmsford, MA compare to other homes in Chelmsford 01824?

Among the 8,861 homes in Chelmsford 01824, it is worth more than 73% of them ($780,486 against a typical $680,392), its price per square foot is higher than 55% of them ($405 against a typical $395), it is bigger than 63% of them (1,926 ft² against a typical 1,666 ft²), its lot is bigger than 85% of them (1.73 ac against a typical 0.8 ac) and it is newer than 56% of them (1966 against a typical 1965). Measured against all of Middlesex County, it is worth more than 50% 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 121 Westford St, Chelmsford, MA?

The 2026 property tax bill for 121 Westford St, Chelmsford, MA was $9,312. The county assessed it at $701,700.

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