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Single Family ResidenceResidential
$817,410$403 / 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 $580,000 on Sep 1, 2017

30 UNION ST

WOBURN, MA 01801
4
Beds
3.5
Baths
2,027 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.
3,485 ft²
Lot SizeThe size of the land the home sits on, from county records.
1860
Year BuiltThe year the home was originally built, according to county records.
3
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

$817K
$777K low$858K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$580,000 · Sep 1, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,282 (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.$735,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$234,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$501,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$828,115

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.45
50
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.14 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.08
ConstructionThe main material the home's frame and walls are built from.Stone
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(6)

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.

H
Woburn Memorial High SchoolB-
High · Grades 9–12 · 0.3 mi
E
Malcolm White Elementary SchoolC
Elementary · Grades KG–5 · 0.4 mi
M
Kennedy Middle SchoolC
Middle · Grades 6–8 · 0.8 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

30 Union 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 79% of homes in Downtown Woburn
  • Costs less per square foot than 84% of homes in Woburn 01801
  • Bigger than 74% of homes in Woburn 01801
  • Has a smaller lot than 98% of homes in Woburn 01801
  • Older than 98% of homes in Middlesex County

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
$329K$1.3M

This home is worth more than 69% 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$817,410
CheaperTypical $723,262Pricier

Pricier than 69% of homes nearby

Price per ft²$403
CheaperTypical $488Pricier

Pricier than 16% of homes nearby

Living area2,027 ft²
SmallerTypical 1,544 ft²Bigger

Bigger than 74% of homes nearby

Lot size3,485 ft²
SmallerTypical 0.28 acBigger

Bigger than 2% of homes nearby

Year built1860
OlderTypical 1960Newer

Newer than 3% of homes nearby

How 30 Union St ranks against every home in each area.
MeasureThis homeDowntown WoburnWoburn 01801Middlesex County
Estimated valuepricier than$817,41079% of homes69% of homes54% of homes
Price per ft²pricier than$40322% of homes16% of homes34% of homes
Living areabigger than2,027 ft²71% of homes74% of homes58% of homes
Lot sizebigger than3,485 ft²4% of homes2% of homes7% of homes
Year builtnewer than18607% of homes3% of homes2% of homes

About 30 Union St

How much is 30 Union St, Woburn, MA worth?

The TopHap Estimate for 30 Union St, Woburn, MA is $817,410 as of Aug 30, 2026. The likely range is $777,303 to $857,517. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 30 Union St, Woburn, MA last sell?

30 Union St, Woburn, MA last sold on Sep 1, 2017 for $580,000, according to the county's recorded deed. TopHap holds 6 recorded sales for this parcel.

How big is 30 Union St, Woburn, MA?

30 Union St, Woburn, MA has 4 bedrooms, 3.5 bathrooms, 2,027 square feet of living space and a 0.08-acre lot.

When was 30 Union St, Woburn, MA built?

30 Union St, Woburn, MA was built in 1860, making it 166 years old. It is a conventional home. The building has 3 stories.

What schools serve 30 Union St, Woburn, MA?

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

How does 30 Union St, Woburn, MA compare to other homes in Woburn 01801?

Among the 11,913 homes in Woburn 01801, it is worth more than 69% of them ($817,410 against a typical $723,262), its price per square foot is higher than 16% of them ($403 against a typical $488), it is bigger than 74% of them (2,027 ft² against a typical 1,544 ft²), its lot is bigger than 2% of them (3,485 ft² against a typical 0.28 ac) and it is newer than 3% of them (1860 against a typical 1960). Measured against all of Middlesex County, it is worth more than 54% 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 30 Union St, Woburn, MA?

The 2025 property tax bill for 30 Union St, Woburn, MA was $6,282. The county assessed it at $735,600.

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