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CondominiumResidential
$1,247,557$925 / 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 90How 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

103 RIVER ST

CAMBRIDGE, MA 02139
Building report
1
Beds
1
Baths
1,349 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.
2,545 ft²
Lot SizeThe size of the land the home sits on, from county records.
1989
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
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

$1.2M
$1.1M low$1.4M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,111 (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.$962,300 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$962,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$804,745

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyMIDDLESEX
HeatingThe type of heating system in the home.Hot Water
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 · 0.1 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

103 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 more than 81% of homes in Middlesex County
  • Costs more per square foot than 96% of homes in Middlesex County
  • Smaller than 72% of homes in Middlesex County
  • Has a smaller lot than 97% of homes in Middlesex County
  • Newer than 92% of homes in Cambridge 02139

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 70% 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$1,247,557
CheaperTypical $956,555Pricier

Pricier than 70% of homes nearby

Price per ft²$925
CheaperTypical $904Pricier

Pricier than 56% of homes nearby

Living area1,349 ft²
SmallerTypical 1,200 ft²Bigger

Bigger than 58% of homes nearby

Lot size2,545 ft²
SmallerTypical 0.11 acBigger

Bigger than 17% of homes nearby

Year built1989
OlderTypical 1903Newer

Newer than 92% of homes nearby

How 103 River St ranks against every home in each area.
MeasureThis homeRiversideCambridge 02139Middlesex County
Estimated valuepricier than$1,247,55766% of homes70% of homes81% of homes
Price per ft²pricier than$92546% of homes56% of homes96% of homes
Living areabigger than1,349 ft²61% of homes58% of homes28% of homes
Lot sizebigger than2,545 ft²20% of homes17% of homes3% of homes
Year builtnewer than198986% of homes92% of homes81% of homes

About 103 River St

How much is 103 River St, Cambridge, MA worth?

The TopHap Estimate for 103 River St, Cambridge, MA is $1,247,557 as of Jul 14, 2026. The likely range is $1,120,674 to $1,374,440. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 103 River St, Cambridge, MA last sell?

103 River St, Cambridge, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 103 River St, Cambridge, MA?

103 River St, Cambridge, MA has 1 bedrooms, 1 bathrooms and 1,349 square feet of living space.

When was 103 River St, Cambridge, MA built?

103 River St, Cambridge, MA was built in 1989, making it 37 years old. The building has 1 story.

What schools serve 103 River St, Cambridge, MA?

103 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 103 River St, Cambridge, MA compare to other homes in Cambridge 02139?

Among the 7,274 homes in Cambridge 02139, it is worth more than 70% of them ($1,247,557 against a typical $956,555), its price per square foot is higher than 56% of them ($925 against a typical $904), it is bigger than 58% of them (1,349 ft² against a typical 1,200 ft²), its lot is bigger than 17% of them (2,545 ft² against a typical 0.11 ac) and it is newer than 92% of them (1989 against a typical 1903). Measured against all of Middlesex County, it is worth more than 81% 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 103 River St, Cambridge, MA?

The 2025 property tax bill for 103 River St, Cambridge, MA was $6,111. The county assessed it at $962,300.

More homes on River St

Closest homes

More homes in Cambridge 02139

Assigned schools

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