30 Decatur St is a 1,954 square foot house on a 2,178 square foot lot with 6 bedrooms and 2.5 bathrooms. - it last sold on August 07, 2006 for $500,000. Based on Redfin's Cambridge data, we estimate the home's value is $1,677,405.
Single-familyProperty Type
1873Year Built
2,178 sq ftLot Size
$858Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,677,405
$1.2M since sold in August 2006$120K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.9% higher than the average sale price ($1.61M) 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: 977
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Forced Air
Room Information
# of Rooms: 12
Exterior
Exterior Information
Physical Condition: Fair
Building Style Type: Conventional
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable
Property Information
Living Sq. Ft: 1,954
Gross Sq. Ft: 2,951
Ground Floor Sq. Ft: 977
# of Units: 1
# of Stories: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 2,178
Municipality Name: CAMBRIDGE
Acres: 0.05
Zoning Code: C
State Use Description: 1-FAMILY RESIDENCE
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 6
Baths: 2.5
Sq. Ft.: 1,954
Stories: 2.0
Lot Size: 2,178 square feet
Style: Single Family Residential
Year Built: 1873
Year Renovated: —
County: Middlesex County
APN: 3846074S
Home facts updated by county records on Jul 29, 2026
Around this home
Schools
The Amigos School
Public PreK-8 • Assigned • 0.2mi
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.