Google street view image for 12 Decatur St, Cambridge, MA 02139

OFF MARKET

$874,495

•

2.5 ba

•

1,321

sq ft

12 Decatur St, Cambridge, MA 02139

About this home

12 Decatur St is a 1,321 square foot condo with 3 bedrooms and 2.5 bathrooms. Based on Redfin's Cambridge data, we estimate the home's value is $874,495.

CondoProperty Type

2004Year Built

$662Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$874,495

$67K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 41.9% lower than the average sale price ($1.50M) of 6 comparable homes.

SOLD JUL 9, 2026
$1,315,000
A
3 beds2.5 baths1,310 sq ft
18 Tufts St #4, Cambridge, MA 02139
SOLD JUN 25, 2026
$1,725,000
B
3 beds2.5 baths1,386 sq ft
104 Hancock St #7, Cambridge, MA 02139
SOLD BY REDFIN JUL 7, 2026
$1,225,000
C
2 beds2 baths1,234 sq ft
20 Corporal Mcternan St #104, Cambridge, MA 02139
SOLD JUN 9, 2026
$1,704,000
D
3 beds2.5 baths1,380 sq ft
18 Tufts St #1, Cambridge, MA 02139
SOLD MAY 20, 2026
$1,650,000
E
3 beds2 baths1,500 sq ft
53 Jay St #2, Cambridge, MA 02139
SOLD MAY 5, 2026
$1,410,000
F
2 beds2 baths1,085 sq ft
100 Pacific #7, Cambridge, MA 02139

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Earn from this home

Sell

$830,155

Est. take-home

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Rent

$4,130/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

21 MoM

New listings for sale

OPEN THU, 11:30AM TO 12:30PM
$495,000
1 bed1 bath534 sq ft
51 Lopez St #4, Cambridge, MA 02139
$2,400,000
6 beds4 baths3,612 sq ft
14 Saint Paul St, Cambridge, MA 02139
$739,900
2 beds1 bath893 sq ft
277 River St #1, Cambridge, MA 02139
$1,295,000
3 beds2 baths1,254 sq ft
20 Marie Ave #1, Cambridge, MA 02139
$759,000
2 beds1 bath760 sq ft
287 Harvard St #79, Cambridge, MA 02139
$790,900
2 beds1 bath810 sq ft
65 Howard St #2, Cambridge, MA 02139
See all

Provided by Redfin

Sale history for 12 Decatur St

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2025

$1,219 (+7.2%)

$192,000

2024

$1,137 (+1.1%)

$192,000

2023

$1,125 (−1.1%)

$192,000

2022

$1,137 (+5.1%)

$192,000

2021

$1,082 (+1.7%)

$185,000

2020

$1,064 (−3.2%)

$185,000

2019

$1,099 (−2.9%)

$185,000

2018

$1,132 (−3.1%)

$180,000

2017

$1,168 (−7.2%)

$180,000

2016

$1,258 (−10.7%)

$180,000

2015

$1,408 (−6.6%)

$180,000

2014

$1,508 (−3.3%)

$180,000

2013

$1,559 (+2.2%)

$180,000

2012

$1,526 (+3.9%)

$180,000

2011

$1,469

$180,000

2010

$1,469 (+7.9%)

$180,000

2009

$1,361

$180,000

Tax history for 12 Decatur St

Year

Property tax

Land + Additions

Assessment*

2025

$1,219 (+7.2%)

$192,000

2024

$1,137 (+1.1%)

$192,000

2023

$1,125 (−1.1%)

$192,000

2022

$1,137 (+5.1%)

$192,000

2021

$1,082 (+1.7%)

$185,000

2020

$1,064 (−3.2%)

$185,000

2019

$1,099 (−2.9%)

$185,000

2018

$1,132 (−3.1%)

$180,000

2017

$1,168 (−7.2%)

$180,000

2016

$1,258 (−10.7%)

$180,000

2015

$1,408 (−6.6%)

$180,000

2014

$1,508 (−3.3%)

$180,000

2013

$1,559 (+2.2%)

$180,000

2012

$1,526 (+3.9%)

$180,000

2011

$1,469

$180,000

2010

$1,469 (+7.9%)

$180,000

2009

$1,361

$180,000

*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: 248

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Air

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Room Information
# of Rooms: 6

Exterior

Exterior Information
Physical Condition: Very Good
Building Style Type: Townhouse

Property Information
Living Sq. Ft: 1,321
Gross Sq. Ft: 1,873
Ground Floor Sq. Ft: 1,321
# of Stories: 3

Lot Information
# of Buildings: 1
Municipality Name: CAMBRIDGE
State Use Description: CONDOMINIUM

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 3
Baths: 2.5
Sq. Ft.: 1,321
Stories: 3.0
Lot Size: —
Style: Condo/Co-op
Year Built: 2004
Year Renovated: —
County: Middlesex County
APN: 4562081

Home facts updated by county records on Jul 16, 2026

Around this home

Schools
Places
Transit

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...
2 months ago • Cambridge
Benjamin Ginsburg
Redfin Premier agent
151 deals
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Climate risks

8/10 Flood Factor

Estimated 80%+ 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

$831,000 – $1.01M

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Nearby similar homes

$739,900

2 beds1 bath893 sq ft

277 River St #1, Cambridge, MA 02139

OPEN SUN, 12PM TO 2PM

$520,000

1 bed1 bath575 sq ft

80 Chestnut St Unit 5C, Cambridge, MA 02139

$1,200,000

2 beds2 baths1,306 sq ft

950 Massachusetts Ave Unit CB3, Cambridge, MA 02139

VIDEO TOUR

$719,000

2 beds1.5 baths876 sq ft

280 Harvard St Unit 1A, Cambridge, MA 02139

$735,000

1 bed1.5 baths962 sq ft

102 River St #2, Cambridge, MA 02139

$615,000

1 bed1.5 baths750 sq ft

872 Massachusetts Ave #304, Cambridge, MA 02139

New listings for sale in 02139

OPEN THU, 11:30AM TO 12:30PM

$495,000

1 bed1 bath534 sq ft

51 Lopez St #4, Cambridge, MA 02139

$2,400,000

6 beds4 baths3,612 sq ft

14 Saint Paul St, Cambridge, MA 02139

$739,900

2 beds1 bath893 sq ft

277 River St #1, Cambridge, MA 02139

$1,295,000

3 beds2 baths1,254 sq ft

20 Marie Ave #1, Cambridge, MA 02139

$759,000

2 beds1 bath760 sq ft

287 Harvard St #79, Cambridge, MA 02139

$790,900

2 beds1 bath810 sq ft

65 Howard St #2, Cambridge, MA 02139

Home values near 12 Decatur St

Data from public records.

Address	Redfin Estimate
10 Decatur St, Cambridge, MA 2 Beds \| 2.5 Baths \| 1220 Sq. Ft.	$1,401,565
16 Decatur St, Cambridge, MA 3 Beds \| 2.5 Baths \| 1327 Sq. Ft.	$1,628,077

Address	Redfin Estimate
14 Decatur St, Cambridge, MA 3 Beds \| 2.5 Baths \| 1327 Sq. Ft.	$1,566,714
14 Decatur St Apartment D14, Cambridge, MA 3 Beds \| 2.5 Baths \| 1711 Sq. Ft.	$1,690,371

Address	Redfin Estimate
18 Decatur St, Cambridge, MA 3 Beds \| 2.5 Baths \| 1363 Sq. Ft.	$1,646,156
18 Decatur St Apartment 18, Cambridge, MA 3 Beds \| 2.5 Baths \| 1484 Sq. Ft.	$1,615,044

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