Google street view image for 11 Flagg St Unit R, Cambridge, MA 02138

Off market jun 1997 for $398K

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Est. refi paymentEst. refi $2,936/mo

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•

— ba

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3,730

sq ft

11 Flagg St Unit R, Cambridge, MA 02138

About this home

11 Flagg St Unit R is a 3,730 square foot multi-family home on a 3,920 square foot lot. - it last sold on June 17, 1997 for $398,000.

Multi-familyProperty Type

1910Year Built

3,920 sq ftLot Size

$107Price/Sq.Ft.

Source:Public Records

Redfin Estimate

There isn’t enough information to generate an accurate estimate at this time. Learn More

Market trends in 02138, MA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.2%

+1.0% MoM

Median sale price

$1.5M

$98K MoM

Avg. days on market

31d

3 days MoM

Recently sold homes

26 MoM

New listings for sale

EARLY ACCESS
$869,000
2 beds2 baths985 sq ft
54 Concord Ave #102, Cambridge, MA 02138
OPEN SAT, 12PM TO 2PM
$1,297,000
2 beds2 baths1,115 sq ft
14 Concord Ave #824, Cambridge, MA 02138
OPEN FRI, 11:30AM TO 1PM
$1,100,000
2 beds2 baths1,075 sq ft
5 Adams Ter #3, Cambridge, MA 02138
$880,000
2 beds1 bath1,040 sq ft
31 Linnaean St #2, Cambridge, MA 02138
$2,695,000
3 beds4.5 baths2,460 sq ft
8 Holworthy Ter, Cambridge, MA 02138
VIDEO TOUR
$2,350,000
4 beds3.5 baths2,622 sq ft
214 Garden St #214, Cambridge, MA 02138
$3,485,000
5 beds4 baths4,002 sq ft
9 Farrar St #9, Cambridge, MA 02138
$3,900,000
10 beds10 baths4,320 sq ft
48 Kirkland St, Cambridge, MA 02138
VIDEO TOUR
$1,095,000
2 beds1.5 baths1,100 sq ft
254 Garden St #254, Cambridge, MA 02138
$579,000
1 bed1 bath625 sq ft
31 Wheeler St #101, Cambridge, MA 02138
See all

Provided by Redfin

Sale history for 11 Flagg St Unit R

Year

Property tax

Land + Additions

Assessment*

2025

2024

2023

2018

$9,961 (+6.6%)

$826,000 + $757,600

$1,583,600

2017

$9,344 (+4.0%)

$784,000 + $655,800

$1,439,800

2016

$8,985 (+4.0%)

$599,200 + $686,200

$1,285,400

2015

$8,640 (+2.7%)

$481,600 + $623,300

$1,104,900

2014

$8,414 (+2.5%)

$448,000 + $556,100

$1,004,100

2013

$8,212 (+13.6%)

$613,500 + $334,800

$948,300

2012

$7,227 (+3.9%)

$631,000 + $221,200

$852,200

2011

$6,954

$631,000 + $221,200

$852,200

2010

$6,954 (+4.7%)

$631,000 + $221,200

$852,200

2009

$6,641

$656,200 + $222,200

$878,400

Tax history for 11 Flagg St Unit R

Year

Property tax

Land + Additions

Assessment*

2025

2024

2023

2018

$9,961 (+6.6%)

$826,000 + $757,600

$1,583,600

2017

$9,344 (+4.0%)

$784,000 + $655,800

$1,439,800

2016

$8,985 (+4.0%)

$599,200 + $686,200

$1,285,400

2015

$8,640 (+2.7%)

$481,600 + $623,300

$1,104,900

2014

$8,414 (+2.5%)

$448,000 + $556,100

$1,004,100

2013

$8,212 (+13.6%)

$613,500 + $334,800

$948,300

2012

$7,227 (+3.9%)

$631,000 + $221,200

$852,200

2011

$6,954

$631,000 + $221,200

$852,200

2010

$6,954 (+4.7%)

$631,000 + $221,200

$852,200

2009

$6,641

$656,200 + $222,200

$878,400

*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: 1,226

Heating & Cooling
Heating Type: Forced Hot Water

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Multi-Family
Construction Type: Frame
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 2,659
Gross Sq. Ft: 3,730
# of Units: 4
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 3,920
Municipality Name: CAMBRIDGE
Acres: 0.09
Zoning Code: C-1

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: —
Baths: —
Sq. Ft.: 3,730
Stories: 2.0
Lot Size: 3,920 square feet
Style: Multi-Family (5+ Unit)
Year Built: 1910
Year Renovated: —
County: Middlesex County
APN: 408401

Home facts updated by county records on Nov 13, 2025

Around this home

Schools

Martin Luther King, Jr. School

Public PreK-5 • Assigned • 0.1mi

9/10

Putnam Avenue Upper School

Public 6-8 • Assigned • 0.1mi

7/10

Cambridge Rindge and Latin School

Public 9-12 • Assigned • 0.4mi

8/10

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

1/10 Flood Factor

Minimal risk 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

62% 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 • 02138

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

Is this your home?

Track this home’s value and nearby sales activity

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New listings for sale in 02138

EARLY ACCESSCOMPASS COMING SOON

$869,000

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54 Concord Ave #102, Cambridge, MA 02138

OPEN SAT, 12PM TO 2PM

$1,297,000

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14 Concord Ave #824, Cambridge, MA 02138

OPEN FRI, 11:30AM TO 1PM

$1,100,000

2 beds2 baths1,075 sq ft

5 Adams Ter #3, Cambridge, MA 02138

$880,000

2 beds1 bath1,040 sq ft

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$2,695,000

3 beds4.5 baths2,460 sq ft

8 Holworthy Ter, Cambridge, MA 02138

VIDEO TOUR

$2,350,000

4 beds3.5 baths2,622 sq ft

214 Garden St #214, Cambridge, MA 02138

$3,485,000

5 beds4 baths4,002 sq ft

9 Farrar St #9, Cambridge, MA 02138

$3,900,000

10 beds10 baths4,320 sq ft

48 Kirkland St, Cambridge, MA 02138

VIDEO TOUR

$1,095,000

2 beds1.5 baths1,100 sq ft

254 Garden St #254, Cambridge, MA 02138

Home values near 11 Flagg St Unit R

Data from public records.

Address	Redfin Estimate
20 Flagg St, Cambridge, MA 3 Beds \| 2.5 Baths \| 2130 Sq. Ft.	$2,729,480
7 Flagg St Apt 2, Cambridge, MA 2 Beds \| 1 Baths \| 916 Sq. Ft.	$978,318

Address	Redfin Estimate
18 Flagg St Apt 16, Cambridge, MA 4 Beds \| 3 Baths \| 2368 Sq. Ft.	$3,130,360
7 Flagg St Apt 7, Cambridge, MA 2 Beds \| 1 Baths \| 886 Sq. Ft.	$779,560

Address	Redfin Estimate
7 Flagg St Apt 1, Cambridge, MA 2 Beds \| 1 Baths \| 867 Sq. Ft.	$939,678
15 Flagg St, Cambridge, MA 4 Beds \| 3 Baths \| 3328 Sq. Ft.	$2,588,243

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