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Duplex (2 Units, Any Combination)Residential
Last sold for $316,533 on Jul 12, 1994

40 COTTAGE ST

CAMBRIDGE, MA 02139
7
Beds
7 / 2
Baths
2,923 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1839
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
13
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$316,533 · Jul 12, 1994

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$21,379 (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.$3,366,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,105,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$2,261,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$3,366,700

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.Victorian
CountyMiddlesex
Lot (acres)The size of the land the home sits on, from county records.0.11
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
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(2)

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
Amigos SchoolA
Elementary · Grades PK–8 · 0.0 mi
H
Cambridge Rindge and LatinA-
High · Grades 9–12 · 0.8 mi

District: Cambridge School District

Neighborhood · ZIP 02139These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
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.39,263
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.22,546 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,313
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$158,134
Average tempThe average temperature here across a full year.50°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

40 Cottage 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.

  • Bigger than 87% of homes in Cambridgeport
  • Has a smaller lot than 86% of homes in Middlesex County
  • Among the oldest homes in Cambridgeport

How it measures up in Cambridge 02139

The dot is this home. The mark in the middle is the typical home in Cambridge 02139.

Living area2,923 ft²
SmallerTypical 1,196 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.11 ac
SmallerTypical 0.11 acBigger

Bigger than 49% of homes nearby

Year built1839
OlderTypical 1903Newer

Older than almost all homes nearby

How 40 Cottage St ranks against every home in each area.
MeasureThis homeCambridgeportCambridge 02139Middlesex County
Living areabigger than2,923 ft²87% of homes87% of homes84% of homes
Lot sizebigger than0.11 ac52% of homes49% of homes14% of homes
Year builtnewer than1839almost no homesalmost no homesalmost no homes

About 40 Cottage St

When did 40 Cottage St, Cambridge, MA last sell?

40 Cottage St, Cambridge, MA last sold on Jul 12, 1994 for $316,533, according to the county's recorded deed.

How big is 40 Cottage St, Cambridge, MA?

40 Cottage St, Cambridge, MA has 7 bedrooms, 7 bathrooms, 2,923 square feet of living space and a 0.11-acre lot.

When was 40 Cottage St, Cambridge, MA built?

40 Cottage St, Cambridge, MA was built in 1839, making it 187 years old. It is a victorian home. The building has 2 stories.

What schools serve 40 Cottage St, Cambridge, MA?

40 Cottage St, Cambridge, MA is assigned to Amigos School (elementary), rated A; Cambridge Rindge and Latin (high), rated A-. All sit in Cambridge School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 40 Cottage St, Cambridge, MA compare to other homes in Cambridge 02139?

Among the 7,274 homes in Cambridge 02139, it is bigger than 87% of them (2,923 ft² against a typical 1,196 ft²), its lot is bigger than 49% of them (0.11 ac against a typical 0.11 ac) and it is newer than almost none of them (1839 against a typical 1903). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 40 Cottage St, Cambridge, MA?

The 2025 property tax bill for 40 Cottage St, Cambridge, MA was $21,379. The county assessed it at $3,366,700.

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Assigned schools

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