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CondominiumResidential
$580,530$397 / 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 Sep 24, 2026

643 MAIN ST

WOBURN, MA 01801
Building report
4
Beds
2
Baths
1,463 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.
1900
Year BuiltThe year the home was originally built, according to county records.
3
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

$581K
$547K low$614K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,314 (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.$388,100 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$388,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$642,770

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
51
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
91
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
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.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Kennedy Middle SchoolC
Middle · Grades 6–8 · 0.4 mi
E
Hurld Wyman Elementary School
Elementary · Grades KG–5 · 0.7 mi
H
Woburn Memorial High SchoolB-
High · Grades 9–12 · 0.7 mi

District: Woburn School District

Neighborhood · ZIP 01801These 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.91
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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
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.41,334
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,253 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$116,257
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$135,854
Average tempThe average temperature here across a full year.49°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

643 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 85% of homes in Woburn 01801
  • Costs less per square foot than 87% of homes in Woburn 01801
  • Smaller than 67% of homes in Middlesex County
  • Has a smaller lot than 75% of homes in Woburn 01801
  • Older than 85% of homes in Woburn 01801

What homes are worth in Woburn 01801

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

This home
$332K$1.3M

This home is worth more than 15% of homes in Woburn 01801.

How it measures up in Woburn 01801

The dot is this home. The mark in the middle is the typical home in Woburn 01801.

Estimated value$580,530
CheaperTypical $725,333Pricier

Pricier than 15% of homes nearby

Price per ft²$397
CheaperTypical $488Pricier

Pricier than 13% of homes nearby

Living area1,463 ft²
SmallerTypical 1,542 ft²Bigger

Bigger than 45% of homes nearby

Lot size0.21 ac
SmallerTypical 0.28 acBigger

Bigger than 25% of homes nearby

Year built1900
OlderTypical 1960Newer

Newer than 15% of homes nearby

How 643 Main St ranks against every home in each area.
MeasureThis homeDowntown WoburnWoburn 01801Middlesex County
Estimated valuepricier than$580,53022% of homes15% of homes23% of homes
Price per ft²pricier than$39719% of homes13% of homes32% of homes
Living areabigger than1,463 ft²43% of homes45% of homes33% of homes
Lot sizebigger than0.21 ac42% of homes25% of homes36% of homes
Year builtnewer than190029% of homes15% of homes15% of homes

About 643 Main St

How much is 643 Main St, Woburn, MA worth?

The TopHap Estimate for 643 Main St, Woburn, MA is $580,530 as of Sep 24, 2026. The likely range is $546,918 to $614,142. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 643 Main St, Woburn, MA last sell?

643 Main St, Woburn, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 643 Main St, Woburn, MA?

643 Main St, Woburn, MA has 4 bedrooms, 2 bathrooms, 1,463 square feet of living space and a 0.21-acre lot.

When was 643 Main St, Woburn, MA built?

643 Main St, Woburn, MA was built in 1900, making it 126 years old. The building has 3 stories.

What schools serve 643 Main St, Woburn, MA?

643 Main St, Woburn, MA is assigned to Kennedy Middle School (middle), rated C; Hurld Wyman Elementary School (elementary); Woburn Memorial High School (high), rated B-. All sit in Woburn School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 643 Main St, Woburn, MA compare to other homes in Woburn 01801?

Among the 11,913 homes in Woburn 01801, it is worth more than 15% of them ($580,530 against a typical $725,333), its price per square foot is higher than 13% of them ($397 against a typical $488), it is bigger than 45% of them (1,463 ft² against a typical 1,542 ft²), its lot is bigger than 25% of them (0.21 ac against a typical 0.28 ac) and it is newer than 15% of them (1900 against a typical 1960). Measured against all of Middlesex County, it is worth more than 23% 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 643 Main St, Woburn, MA?

The 2025 property tax bill for 643 Main St, Woburn, MA was $3,314. The county assessed it at $388,100.

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