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Single Family ResidenceResidential
$561,651$135 / 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 93How 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

421 MAIN ST

WEST TOWNSEND, MA 01474
4
Beds
2.5
Baths
4,169 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 ac
Lot SizeThe size of the land the home sits on, from county records.
1818
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$562K
$522K low$601K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,481 (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.$616,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$108,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$502,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$615,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$661,010

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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.Colonial
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.1.00
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(5)

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
Spaulding Memorial SchoolB
Elementary · Grades KG–4 · 1.4 mi
M
Hawthorne Brook Middle SchoolC
Middle · Grades 5–8 · 1.8 mi
H
North Middlesex Regional High SchoolB
High · Grades 9–12 · 4.2 mi

District: North Middlesex School District

Neighborhood · ZIP 01474These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

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.26%
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.1.3%
PopulationHow many people live in this area.2,034
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.215 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$115,822
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$127,071
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

421 Main 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 79% of homes in Middlesex County
  • Among the lowest price per square foot in Middlesex County
  • Bigger than 98% of homes in West Townsend 01474
  • Has a bigger lot than 79% of homes in Middlesex County
  • Among the oldest homes in Middlesex County

What homes are worth in West Townsend 01474

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

This home
$265K$790K

This home is worth more than 68% of homes in West Townsend 01474.

How it measures up in West Townsend 01474

The dot is this home. The mark in the middle is the typical home in West Townsend 01474.

Estimated value$561,651
CheaperTypical $495,896Pricier

Pricier than 68% of homes nearby

Price per ft²$135
CheaperTypical $266Pricier

Cheaper than almost all homes nearby

Living area4,169 ft²
SmallerTypical 1,931 ft²Bigger

Bigger than 98% of homes nearby

Lot size1 ac
SmallerTypical 1.66 acBigger

Bigger than 37% of homes nearby

Year built1818
OlderTypical 1980Newer

Newer than 3% of homes nearby

How 421 Main St ranks against every home in each area.
MeasureThis homeWest Townsend 01474Middlesex County
Estimated valuepricier than$561,65168% of homes21% of homes
Price per ft²pricier than$135almost no homesalmost no homes
Living areabigger than4,169 ft²98% of homes96% of homes
Lot sizebigger than1 ac37% of homes79% of homes
Year builtnewer than18183% of homesalmost no homes

About 421 Main St

How much is 421 Main St, West Townsend, MA worth?

The TopHap Estimate for 421 Main St, West Townsend, MA is $561,651 as of Sep 24, 2026. The likely range is $522,057 to $601,245. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Main St, West Townsend, MA last sell?

421 Main St, West Townsend, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 421 Main St, West Townsend, MA?

421 Main St, West Townsend, MA has 4 bedrooms, 2.5 bathrooms, 4,169 square feet of living space and a 1.00-acre lot.

When was 421 Main St, West Townsend, MA built?

421 Main St, West Townsend, MA was built in 1818, making it 208 years old. It is a colonial home. The building has 2 stories.

What schools serve 421 Main St, West Townsend, MA?

421 Main St, West Townsend, MA is assigned to Spaulding Memorial School (elementary), rated B; Hawthorne Brook Middle School (middle), rated C; North Middlesex Regional High School (high), rated B. All sit in North Middlesex School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Main St, West Townsend, MA compare to other homes in West Townsend 01474?

Among the 759 homes in West Townsend 01474, it is worth more than 68% of them ($561,651 against a typical $495,896), its price per square foot is higher than almost none of them ($135 against a typical $266), it is bigger than 98% of them (4,169 ft² against a typical 1,931 ft²), its lot is bigger than 37% of them (1 ac against a typical 1.66 ac) and it is newer than 3% of them (1818 against a typical 1980). Measured against all of Middlesex County, it is worth more than 21% 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 421 Main St, West Townsend, MA?

The 2026 property tax bill for 421 Main St, West Townsend, MA was $8,481. The county assessed it at $616,800.

More homes on Main St

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