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Duplex (2 Units, Any Combination)Residential
Last sold for $800,000 on Aug 19, 2022

12 PUTNAM AVE

CHELMSFORD, MA 01824
4
Beds
4
Baths
2,820 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.
0.81 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$800,000 · Aug 19, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,936 (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.$899,500 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$342,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$556,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$770,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$821,688

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.81
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
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(11)

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
South RowA
Elementary · Grades KG–4 · 1.0 mi
M
McCarthy Middle SchoolB+
Middle · Grades 7–8 · 2.3 mi
H
Chelmsford High SchoolA-
High · Grades 9–12 · 2.6 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

12 Putnam Ave 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.

  • Bigger than 91% of homes in Chelmsford 01824
  • Has a bigger lot than 73% of homes in Middlesex County
  • Older than 93% 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.

Living area2,820 ft²
SmallerTypical 1,661 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.81 ac
SmallerTypical 0.8 acBigger

Bigger than 50% of homes nearby

Year built1920
OlderTypical 1965Newer

Newer than 7% of homes nearby

How 12 Putnam Ave ranks against every home in each area.
MeasureThis homeChelmsford 01824Middlesex County
Living areabigger than2,820 ft²91% of homes82% of homes
Lot sizebigger than0.81 ac50% of homes73% of homes
Year builtnewer than19207% of homes25% of homes

About 12 Putnam Ave

When did 12 Putnam Ave, Chelmsford, MA last sell?

12 Putnam Ave, Chelmsford, MA last sold on Aug 19, 2022 for $800,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 12 Putnam Ave, Chelmsford, MA?

12 Putnam Ave, Chelmsford, MA has 4 bedrooms, 4 bathrooms, 2,820 square feet of living space and a 0.81-acre lot.

When was 12 Putnam Ave, Chelmsford, MA built?

12 Putnam Ave, Chelmsford, MA was built in 1920, making it 106 years old. The building has 2 stories.

What schools serve 12 Putnam Ave, Chelmsford, MA?

12 Putnam Ave, Chelmsford, MA is assigned to South Row (elementary), rated A; McCarthy Middle School (middle), rated B+; Chelmsford High School (high), rated A-. All sit in Chelmsford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 12 Putnam Ave, Chelmsford, MA compare to other homes in Chelmsford 01824?

Among the 8,861 homes in Chelmsford 01824, it is bigger than 91% of them (2,820 ft² against a typical 1,661 ft²), its lot is bigger than 50% of them (0.81 ac against a typical 0.8 ac) and it is newer than 7% of them (1920 against a typical 1965). 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 Putnam Ave, Chelmsford, MA?

The 2026 property tax bill for 12 Putnam Ave, Chelmsford, MA was $11,936. The county assessed it at $899,500.

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