$3,357,132
$287K since July
This home's estimate is 7.1% lower than the average sale price ($3.61M) of 6 comparable homes.
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OFF MARKET
$3,357,132
4
bd•
3.5 ba
•
4,325
sq ft
21 Decatur St, Cambridge, MA 02139
About this home
21 Decatur St is a 4,325 square foot townhouse on a 4,200 square foot lot with 4 bedrooms and 3.5 bathrooms. Based on Redfin's Cambridge data, we estimate the home's value is $3,357,132.
TownhomeProperty Type
1873Year Built
4,200 sq ftLot Size
$776Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
Earn from this home
Sell
$3,189,753
Est. take-home
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Rent
$6,228/mo
Redfin rental estimate
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Market trends in 02139, MA
Last updated July 2026
Buyer's Market
Seller's Market
Seller's market
Sale-to-List Price
104.0%
0.3% MoM
Median sale price
$1.1M
$195K MoM
Avg. days on market
22d
1 days MoM
Recently sold homes
70
21 MoM
New listings for sale
Provided by Redfin
Property details
Around this home
The Amigos School
Public PreK-8 • Assigned • 0.2mi
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Sun exposure
In this area, properties receive around 9.2 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.
JuneDecember
Provided by Shadowmap
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