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 $2,754/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 July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.1%

1.1% MoM

Median sale price

$1.2M

$18K MoM

Avg. days on market

20d

1 days MoM

Recently sold homes

28 MoM

New listings for sale

NEW 3 HRS AGO
$1,300,000
2 beds3 baths2,000 sq ft
156 Mount Auburn St #2, Cambridge, MA 02138
OPEN SAT, 12PM TO 2PM
$800,000
2 beds1 bath898 sq ft
15 Fallon Pl Unit 15A, Cambridge, MA 02138
$1,295,000
2 beds2 baths1,340 sq ft
985 Memorial Dr #401, Cambridge, MA 02138
OPEN SAT, 1:30PM TO 3PM
$875,000
2 beds1 bath1,270 sq ft
503 Huron Ave #4, 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...
2 months ago • Cambridge
Benjamin Ginsburg
Redfin Premier agent
152 deals
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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

NEW 3 HRS AGO

$1,300,000

2 beds3 baths2,000 sq ft

156 Mount Auburn St #2, Cambridge, MA 02138

OPEN SAT, 12PM TO 2PM

$800,000

2 beds1 bath898 sq ft

15 Fallon Pl Unit 15A, Cambridge, MA 02138

$1,295,000

2 beds2 baths1,340 sq ft

985 Memorial Dr #401, Cambridge, MA 02138

OPEN SAT, 1:30PM TO 3PM

$875,000

2 beds1 bath1,270 sq ft

503 Huron Ave #4, 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.	$2,875,440
7 Flagg St Apt 2, Cambridge, MA 2 Beds \| 1 Baths \| 916 Sq. Ft.	$918,546

Address	Redfin Estimate
18 Flagg St Apt 16, Cambridge, MA 4 Beds \| 3 Baths \| 2368 Sq. Ft.	$3,306,425
7 Flagg St Apt 7, Cambridge, MA 2 Beds \| 1 Baths \| 886 Sq. Ft.	$794,434

Address	Redfin Estimate
7 Flagg St Apt 1, Cambridge, MA 2 Beds \| 1 Baths \| 867 Sq. Ft.	$958,287
15 Flagg St, Cambridge, MA 4 Beds \| 3 Baths \| 3328 Sq. Ft.	—

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