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CondominiumResidential
$827,006$844 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $572,000 on Jun 16, 2014

109 RIVER ST

CAMBRIDGE, MA 02139
Building report
2
Beds
1
Baths
980 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.
1844
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$827K
$798K low$856K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$572,000 · Jun 16, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,430 (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.$697,600 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$697,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$999,970

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
CountyMIDDLESEX
HeatingThe type of heating system in the home.Hot Water
GarageWhether the property has a garage, and details like whether it is attached to the home.Covered
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(7)

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

109 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.

  • Worth less than 68% of homes in Riverside
  • Costs more per square foot than 94% of homes in Middlesex County
  • Smaller than 90% of homes in Middlesex County
  • Has a smaller lot than 86% of homes in Middlesex County
  • Among the oldest homes in Middlesex County

What homes are worth in Cambridge 02139

Each bar is how many homes fall in that price range. The marker is this home.

This home
$356K$2.5M

This home is worth more than 37% of homes in Cambridge 02139.

How it measures up in Cambridge 02139

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

Estimated value$827,006
CheaperTypical $956,555Pricier

Pricier than 37% of homes nearby

Price per ft²$844
CheaperTypical $904Pricier

Pricier than 33% of homes nearby

Living area980 ft²
SmallerTypical 1,200 ft²Bigger

Bigger than 34% of homes nearby

Lot size0.11 ac
SmallerTypical 0.11 acBigger

Bigger than 48% of homes nearby

Year built1844
OlderTypical 1903Newer

Newer than 2% of homes nearby

How 109 River St ranks against every home in each area.
MeasureThis homeRiversideCambridge 02139Middlesex County
Estimated valuepricier than$827,00632% of homes37% of homes54% of homes
Price per ft²pricier than$84425% of homes33% of homes94% of homes
Living areabigger than980 ft²36% of homes34% of homes10% of homes
Lot sizebigger than0.11 ac51% of homes48% of homes14% of homes
Year builtnewer than18442% of homes2% of homesalmost no homes

About 109 River St

How much is 109 River St, Cambridge, MA worth?

The TopHap Estimate for 109 River St, Cambridge, MA is $827,006 as of Jul 14, 2026. The likely range is $797,547 to $856,465. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 109 River St, Cambridge, MA last sell?

109 River St, Cambridge, MA last sold on Jun 16, 2014 for $572,000, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 109 River St, Cambridge, MA?

109 River St, Cambridge, MA has 2 bedrooms, 1 bathrooms and 980 square feet of living space.

When was 109 River St, Cambridge, MA built?

109 River St, Cambridge, MA was built in 1844, making it 182 years old. It is a condo/apartment home. The building has 1 story.

What schools serve 109 River St, Cambridge, MA?

109 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 109 River St, Cambridge, MA compare to other homes in Cambridge 02139?

Among the 7,274 homes in Cambridge 02139, it is worth more than 37% of them ($827,006 against a typical $956,555), its price per square foot is higher than 33% of them ($844 against a typical $904), it is bigger than 34% of them (980 ft² against a typical 1,200 ft²), its lot is bigger than 48% of them (0.11 ac against a typical 0.11 ac) and it is newer than 2% of them (1844 against a typical 1903). 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 109 River St, Cambridge, MA?

The 2025 property tax bill for 109 River St, Cambridge, MA was $4,430. The county assessed it at $697,600.

More homes on River St

Closest homes

More homes in Cambridge 02139

Assigned schools

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