12 Kelly Rd is a 3,447 square foot multi-family home on a 4,792 square foot lot with 7 bedrooms and 3.5 bathrooms. - it last sold on November 13, 1986 for $3,300,700. Based on Redfin's Cambridge data, we estimate the home's value is $3,019,648.
Multi-familyProperty Type
1873Year Built
4,792 sq ftLot Size
$876Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$3,019,648
$281K since sold in November 1986$68K since July
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Estimate history
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This home's estimate is 4.7% lower than the average sale price ($3.17M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Interior
Basement Information
Basement Sq. Ft: 1,566
Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1
Room Information
# of Rooms: 16
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Duplex
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable
Property Information
Living Sq. Ft: 3,447
Gross Sq. Ft: 5,890
Ground Floor Sq. Ft: 1,566
# of Units: 3
# of Stories: 3
Lot Information
# of Buildings: 1
Land Sq. Ft: 4,792
Municipality Name: CAMBRIDGE
Acres: 0.11
Zoning Code: C
State Use Description: 3-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 7
Baths: 3.5
Sq. Ft.: 3,447
Stories: 3.0
Lot Size: 4,792 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1873
Year Renovated: —
County: Middlesex County
APN: 850285S
Home facts updated by county records on Jul 29, 2026
Around this home
Schools
The Amigos School
Public PreK-8 • Assigned • 0.1mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
Despite new zoning laws encouraging housing production, Cambridge remains a Seller's market driven by pent-up demand and a constant influx of buyers. Because it is a historic, built-out city, there is little new housing to replace existing...
properties, & true supply growth is severely constrained.