CondominiumResidential
28 River St
CAMBRIDGE, MA 02139
1,746 ft²
Lot SizeThe size of the land the home sits on, from county records.
1999
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 19994 units832–980 ft²
$3M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$741K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$798
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.
-17.0%vs the Cambridge ZIP median sale $/ft² ($961)
Sales Performance
—
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
0
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
0.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
2008202120222023
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
2008202120222023
8 arms-length sales on record for this building.
Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
2 bed
4 units$741K · $798/ft²
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
2 bd · 1 ba · 980 ft²
2 units$703K · $717/ft²
One-off layouts
2 units
Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.
$697K–$709K
2 units
$774K–$774K
1 unit
$817K–$817K
1 unit
Ownership & Financing
Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.100%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.0%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.6.7 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.33%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.29%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$704,634
Median tax billThe middle annual property tax bill among the building's units.$4,861
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0
Recent SalesThe latest recorded arms-length sales in the building, newest first.
Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.
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
PoolWhether the property has a pool, and what kind, such as in-ground.No
Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
EH
Amigos SchoolA
Elementary · Grades PK–8 · 0.2 mi
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%
All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
About 28 River St
How many units are in 28 River St, Cambridge, MA?
28 River St, Cambridge, MA has 4 residential units across built in 1999, according to county assessor records.
What is a unit at 28 River St, Cambridge, MA worth?
The median TopHap Estimate across the 4 units at 28 River St, Cambridge, MA is $741,265. That works out to $798 per square foot. Units run from 832 to 980 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.
Is 28 River St, Cambridge, MA expensive for Cambridge?
Units at 28 River St, Cambridge, MA carry a median of $798 per square foot, 17% below the Cambridge median of $961 per square foot.
How often do units sell at 28 River St, Cambridge, MA?
0 units at 28 River St, Cambridge, MA sold in the last 12 months, out of 8 recorded arms-length sales all time. That is a turnover rate of 0.0% of the building per year.
Have units at 28 River St, Cambridge, MA appreciated?
Across 4 repeat sales of the same unit, 28 River St, Cambridge, MA returned a median 5.2% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 7.2 years.
What floor plans does 28 River St, Cambridge, MA have?
The most common plan at 28 River St, Cambridge, MA is a 2-bedroom of 980 square feet, repeated 2 times, with a median estimate of $702,962. TopHap identifies 1 recurring plans in the building.
Closest homes
- 28 River St$774K0 ft · 2 bd · 1 ba · 832 ft² · Sold $865K · Sep 2023
- 28 River St$709K0 ft · 2 bd · 1 ba · 980 ft² · Sold $439K · Oct 2008
- 28 River St$817K0 ft · 2 bd · 1 ba · 937 ft² · Sold $849K · Feb 2023
- 30 River St23 ft · 4,664 ft² · Sold $100K · Oct 1991
- 32 River St47 ft · 6 bd · 4 ba · 3,104 ft² · Sold $422K · May 1999
- 34 River St89 ft · 6 bd · 4 ba · 3,195 ft² · Sold Aug 2025
- 11 Magazine St$2.5M123 ft · 3 bd · 2.5 ba · 1,803 ft² · Sold $1.7M · Aug 2018
- 11 Magazine St$2.1M123 ft · 4 bd · 4.5 ba · 2,504 ft² · Sold $1.1M · Jul 2010
More homes in Cambridge 02139
- 164 Pearl St$1.1M2 bd · 1.5 ba · 938 ft² · Sold $1.1M · Jul 2026
- 24 Ellsworth Ave$1.4M3 bd · 2.5 ba · 2,167 ft² · Sold $1.8M · Jul 2026
- 54 Pearl St$895K2 bd · 1 ba · 1,100 ft² · Sold $1M · Jul 2026
- 393 Broadway$665K1 bd · 1 ba · 695 ft² · Sold $668K · Jul 2026
- 12 Inman St$486K1 bd · 1 ba · 429 ft² · Sold $464K · Jul 2026
- 12 Arnold Cir$1.4M2 bd · 2 ba · 680 ft² · Sold $1.4M · Jul 2026
- 179 Chestnut St$1.2M2 bd · 1.5 ba · 1,048 ft² · Sold $1.2M · Jul 2026
- 85 Bristol St$1.2M5 bd · 2.5 ba · 1,465 ft² · Sold $1.3M · Jul 2026
- 88 Hancock St$868K2 bd · 1 ba · 720 ft² · Sold $780K · Jul 2026
- 410 Franklin St$1.3M2 bd · 2.5 ba · 681 ft² · Sold $1.2M · Jul 2026
- 45 Market St$1.5M3 bd · 2.5 ba · 1,398 ft² · Sold $1.5M · Jul 2026
- 54 Norfolk St5,088 ft² · Sold $900K · Jul 2026
Assigned schools
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