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Triplex (3 Units, Any Combination)Residential
Last sold for $2,106,666 on May 20, 2021

171 RIVER ST

CAMBRIDGE, MA 02139
9
Beds
3.5
Baths
4,308 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.
2,047 ft²
Lot SizeThe size of the land the home sits on, from county records.
1905
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
14
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.$2,106,666 · May 20, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,512 (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.$1,183,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$708,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$474,200

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Triplex (3 Units, Any Combination)
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.05
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Hot Water
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

Transaction History(13)

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 · 0.1 mi
H
Cambridge Rindge and LatinA-
High · Grades 9–12 · 0.7 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%

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

171 River 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 97% of homes in Middlesex County
  • Has a smaller lot than 98% of homes in Middlesex County
  • Older than 84% of homes in Middlesex County

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 area4,308 ft²
SmallerTypical 1,200 ft²Bigger

Bigger than 96% of homes nearby

Lot size2,047 ft²
SmallerTypical 0.11 acBigger

Bigger than 10% of homes nearby

Year built1905
OlderTypical 1903Newer

Newer than 53% of homes nearby

How 171 River St ranks against every home in each area.
MeasureThis homeRiversideCambridge 02139Middlesex County
Living areabigger than4,308 ft²96% of homes96% of homes97% of homes
Lot sizebigger than2,047 ft²10% of homes10% of homes2% of homes
Year builtnewer than190549% of homes53% of homes16% of homes

About 171 River St

When did 171 River St, Cambridge, MA last sell?

171 River St, Cambridge, MA last sold on May 20, 2021 for $2,106,666, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 171 River St, Cambridge, MA?

171 River St, Cambridge, MA has 9 bedrooms, 3.5 bathrooms, 4,308 square feet of living space and a 0.05-acre lot.

When was 171 River St, Cambridge, MA built?

171 River St, Cambridge, MA was built in 1905, making it 121 years old. The building has 3 stories.

What schools serve 171 River St, Cambridge, MA?

171 River 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 171 River St, Cambridge, MA compare to other homes in Cambridge 02139?

Among the 7,274 homes in Cambridge 02139, it is bigger than 96% of them (4,308 ft² against a typical 1,200 ft²), its lot is bigger than 10% of them (2,047 ft² against a typical 0.11 ac) and it is newer than 53% of them (1905 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 171 River St, Cambridge, MA?

The 2025 property tax bill for 171 River St, Cambridge, MA was $7,512. The county assessed it at $1,183,000.

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Assigned schools

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