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Duplex (2 Units, Any Combination)Residential

12 WILLOW ST

CONCORD, MA 01742
2
Beds
2
Baths
1,723 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.
3,315 ft²
Lot SizeThe size of the land the home sits on, from county records.
1896
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$13,106 (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.$988,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$734,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$254,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyMIDDLESEX
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1965
Lot (acres)The size of the land the home sits on, from county records.0.08
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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
Alcott Elementary SchoolA+
Elementary · Grades KG–5 · 0.4 mi
H
Concord Carlisle High SchoolA+
High · Grades 9–12 · 0.6 mi
M
Concord Middle SchoolA+
Middle · Grades 6–8 · 2.3 mi

District: Concord School District

Neighborhood · ZIP 01742These 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.47
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.74

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.94%
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.2.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.18,974
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.737 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$185,796
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$221,000
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

12 Willow 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.

  • Smaller than 73% of homes in Concord 01742
  • Among the smallest lots in Concord 01742
  • Older than 92% of homes in Middlesex County

How it measures up in Concord 01742

The dot is this home. The mark in the middle is the typical home in Concord 01742.

Living area1,723 ft²
SmallerTypical 2,387 ft²Bigger

Bigger than 27% of homes nearby

Lot size3,315 ft²
SmallerTypical 0.65 acBigger

Smaller than almost all homes nearby

Year built1896
OlderTypical 1966Newer

Newer than 9% of homes nearby

How 12 Willow St ranks against every home in each area.
MeasureThis homeConcord 01742Middlesex County
Living areabigger than1,723 ft²27% of homes45% of homes
Lot sizebigger than3,315 ft²almost no homes5% of homes
Year builtnewer than18969% of homes8% of homes

About 12 Willow St

When did 12 Willow St, Concord, MA last sell?

12 Willow St, Concord, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 12 Willow St, Concord, MA?

12 Willow St, Concord, MA has 2 bedrooms, 2 bathrooms, 1,723 square feet of living space and a 0.08-acre lot.

When was 12 Willow St, Concord, MA built?

12 Willow St, Concord, MA was built in 1896, making it 130 years old. It is a duplex single home. The building has 2 stories.

What schools serve 12 Willow St, Concord, MA?

12 Willow St, Concord, MA is assigned to Alcott Elementary School (elementary), rated A+; Concord Carlisle High School (high), rated A+; Concord Middle School (middle), rated A+. All sit in Concord School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12 Willow St, Concord, MA compare to other homes in Concord 01742?

Among the 5,735 homes in Concord 01742, it is bigger than 27% of them (1,723 ft² against a typical 2,387 ft²), its lot is bigger than almost none of them (3,315 ft² against a typical 0.65 ac) and it is newer than 9% of them (1896 against a typical 1966). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 12 Willow St, Concord, MA?

The 2025 property tax bill for 12 Willow St, Concord, MA was $13,106. The county assessed it at $988,400.

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