Google street view image for 30 Decatur St, Cambridge, MA 02139

Off market aug 2006 for $500K

$1,586,092

Est. refi paymentEst. refi $3,453/mo

•

2.5 ba

•

1,954

sq ft

30 Decatur St, Cambridge, MA 02139

About this home

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 $1,586,092.

Single-familyProperty Type

1873Year Built

2,178 sq ftLot Size

$812Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,586,092

$1.1M since sold in August 2006$15K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.4% lower than the average sale price ($1.69M) of 6 comparable homes.

SOLD JUN 23, 2026
$1,405,000
A
2 beds1.5 baths1,276 sq ft
11 Kent Sq, Brookline, MA 02446
SOLD AUG 10, 2026
$2,325,000
B
4 beds2.5 baths1,839 sq ft
48 Amory St, Cambridge, MA 02139
SOLD JUN 26, 2026
$2,952,000
C
6 beds3.5 baths3,052 sq ft
302 Brookline St, Cambridge, MA 02139
SOLD NOV 12, 2025
$1,185,000
D
2 beds2 baths1,734 sq ft
203 Franklin St, Cambridge, MA 02139
SOLD AUG 3, 2026
$1,150,000
E
8 beds2.5 baths2,451 sq ft
36 Alleghany St, Boston, MA 02120
SOLD AUG 3, 2026
$1,150,000
F
8 beds2.5 baths2,451 sq ft
34 Alleghany St, Boston, MA 02120

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Earn from this home

Sell

$1,322,485

Est. take-home

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Refinance

Est. cash available

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Rent

$7,822/mo

Redfin rental estimate

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Market trends in 02139, MA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

103.2%

+0.0% MoM

Median sale price

$1.3M

$119K MoM

Avg. days on market

21d

0 days MoM

Recently sold homes

25 MoM

New listings for sale

$1,379,000
2 beds2 baths1,170 sq ft
309 Broadway #6, Cambridge, MA 02139
EARLY ACCESS
Unknown
4 beds4 baths2,100 sq ft
343 Allston St Unit B, Cambridge, MA 02139
$630,000
2 beds1 bath691 sq ft
269 Harvard St #34, Cambridge, MA 02139
HOT HOME
$1,125,000
3 beds3 baths1,648 sq ft
40 Prince St #40, Cambridge, MA 02139
EARLY ACCESS
Unknown
3 beds2 baths1,422 sq ft
90 Putnam Ave #3, Cambridge, MA 02139
$898,000
3 beds2 baths854 sq ft
241-255 River St #6, Cambridge, MA 02139
$1,700,000
6 beds3 baths2,479 sq ft
407 Washington St #407, Cambridge, MA 02139
$2,145,000
4 beds3 baths1,860 sq ft
99 Pleasant St, Cambridge, MA 02139
$2,799,999
6 beds3.5 baths3,414 sq ft
350 Washington St, Cambridge, MA 02139
VIDEO TOUR
$1,575,000
3 beds2.5 baths1,742 sq ft
20 Tufts St #20, Cambridge, MA 02139
See all

Provided by Redfin

Sale history for 30 Decatur St

Year

Property tax

Land + Additions

Assessment*

2025

$8,397 (+3.7%)

$842,800 + $479,600

$1,322,400

2024

$8,095 (+6.6%)

$908,300 + $459,100

$1,367,400

2023

$7,596 (+2.6%)

$899,200 + $397,100

$1,296,300

2022

$7,403 (+7.6%)

$898,900 + $351,600

$1,250,500

2021

$6,883 (+7.1%)

$849,600 + $326,900

$1,176,500

2020

$6,427 (+10.0%)

$807,800 + $309,900

$1,117,700

2019

$5,843 (+5.9%)

$704,500 + $279,100

$983,600

2018

$5,516 (−0.3%)

$619,500 + $257,500

$877,000

2017

$5,531 (+10.7%)

$607,300 + $245,000

$852,300

2016

$4,998 (+1.5%)

$479,800 + $235,200

$715,000

2015

$4,922 (−3.0%)

$419,100 + $210,300

$629,400

2014

$5,072 (+11.8%)

$397,800 + $207,500

$605,300

2013

$4,538 (+2.6%)

$312,800 + $211,200

$524,000

2012

$4,421 (+3.9%)

$306,700 + $214,600

$521,300

2011

$4,255

$306,700 + $214,700

$521,400

2010

$4,255 (+7.2%)

$306,700 + $214,700

$521,400

2009

$3,970

$320,700 + $204,400

$525,100

Tax history for 30 Decatur St

Year

Property tax

Land + Additions

Assessment*

2025

$8,397 (+3.7%)

$842,800 + $479,600

$1,322,400

2024

$8,095 (+6.6%)

$908,300 + $459,100

$1,367,400

2023

$7,596 (+2.6%)

$899,200 + $397,100

$1,296,300

2022

$7,403 (+7.6%)

$898,900 + $351,600

$1,250,500

2021

$6,883 (+7.1%)

$849,600 + $326,900

$1,176,500

2020

$6,427 (+10.0%)

$807,800 + $309,900

$1,117,700

2019

$5,843 (+5.9%)

$704,500 + $279,100

$983,600

2018

$5,516 (−0.3%)

$619,500 + $257,500

$877,000

2017

$5,531 (+10.7%)

$607,300 + $245,000

$852,300

2016

$4,998 (+1.5%)

$479,800 + $235,200

$715,000

2015

$4,922 (−3.0%)

$419,100 + $210,300

$629,400

2014

$5,072 (+11.8%)

$397,800 + $207,500

$605,300

2013

$4,538 (+2.6%)

$312,800 + $211,200

$524,000

2012

$4,421 (+3.9%)

$306,700 + $214,600

$521,300

2011

$4,255

$306,700 + $214,700

$521,400

2010

$4,255 (+7.2%)

$306,700 + $214,700

$521,400

2009

$3,970

$320,700 + $204,400

$525,100

*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 Sep 10, 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...
3 weeks ago • Cambridge
Benjamin Ginsburg
Redfin Premier agent
155 deals
Was this helpful?
The Cambridge market is quite resilient. New zoning regulations now allow MF homes on traditional SF lots, as the City aims to boost housing supply & improve affordability. The high demand is consistently driven by the area's world-class healthcare,...
4 weeks ago • Cambridge
Kyle MacNichol
Redfin Premier agent
57 deals
Was this helpful?

Climate risks

6/10 Flood Factor

Estimated 73-81% chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

6/10 Heat Factor

7 days above 96° expected this year, 15 days in 30 years

6/10 Wind Factor

64% chance of strong winds in next 30 years

3/10 Air Factor

3 unhealthy days expected this year, 3 days in 30 years

Provided by First Street

Historical weather

Cambridge, MA • 02139

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

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.

9.2 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.51M – $1.83M

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Home values near 30 Decatur St

Data from public records.

Address	Redfin Estimate
24 Decatur Street, Cambridge, MA 4 Beds \| 2.5 Baths \| 1973 Sq. Ft.	$2,261,148
20 Decatur Street, Cambridge, MA 2 Beds \| 2.5 Baths \| 1175 Sq. Ft.	$1,643,080

Address	Redfin Estimate
27 Decatur Street, Cambridge, MA 3 Beds \| 3 Baths \| 1140 Sq. Ft.	$1,426,579
22 Decatur Street Unit 1, Cambridge, MA 2 Beds \| 1 Baths \| 816 Sq. Ft.	$903,286

Address	Redfin Estimate
25 Decatur Street, Cambridge, MA 5 Beds \| 4 Baths \| 3522 Sq. Ft.	$2,630,052
22 Decatur Street Unit 2, Cambridge, MA 2 Beds \| 1 Baths \| 818 Sq. Ft.	$854,690

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