Google street view image for 21 Roberts Rd #19, Cambridge, MA 02138

OFF MARKET

$2,415,826

•

2.5 ba

•

2,425

sq ft

21 Roberts Rd #19, Cambridge, MA 02138

About this home

21 Roberts Rd #19 is a 2,425 square foot condo with 3 bedrooms and 2.5 bathrooms. Based on Redfin's Cambridge data, we estimate the home's value is $2,415,826.

CondoProperty Type

1854Year Built

$996Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,415,826

$117K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 57.9% higher than the average sale price ($1.53M) of 6 comparable homes.

SOLD JUL 29, 2026
$1,800,313
A
3 beds2 baths2,096 sq ft
24 Ellsworth Ave #1, Cambridge, MA 02139
SOLD JUN 1, 2026
$2,100,000
B
4 beds3 baths2,127 sq ft
53 Ellery #1, Cambridge, MA 02138
SOLD JUN 5, 2026
$1,180,000
C
2 beds2 baths1,267 sq ft
111 Beacon St Unit C, Somerville, MA 02143
SOLD JUL 1, 2026
$1,400,000
D
2 beds1.5 baths1,240 sq ft
61 Dana St #4, Cambridge, MA 02138
SOLD NOV 17, 2025
$1,400,000
E
3 beds2.5 baths1,851 sq ft
2 Village St #2, Somerville, MA 02143
SOLD JUL 6, 2026
$1,300,000
F
3 beds1.5 baths1,265 sq ft
135 Antrim Unit C, Cambridge, MA 02139

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Earn from this home

Sell

$2,295,098

Est. take-home

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Rent

$4,200/mo

Redfin rental estimate

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Market trends in 02138, MA

Last updated August 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

EARLY ACCESS
$649,000
1 bed1 bath690 sq ft
17 Healey St #201, Cambridge, MA 02138
$1,300,000
2 beds3 baths2,000 sq ft
156 Mount Auburn St #2, Cambridge, MA 02138
$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
$875,000
2 beds1 bath1,270 sq ft
503 Huron Ave #4, Cambridge, MA 02138
See all

Provided by Redfin

Sale history for 21 Roberts Rd #19

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

Year

Property tax

Land + Additions

Assessment*

2025

$19,061 (+14.2%)

$3,001,800

2024

$16,686 (+4.0%)

$2,818,600

2023

$16,040 (+2.3%)

$2,737,200

2022

$15,675 (+2.7%)

$2,647,800

2021

$15,270 (+8.1%)

$2,610,300

2020

$14,124 (+3.9%)

$2,456,400

2019

$13,592 (+1.7%)

$2,288,200

2018

$13,365 (+4.3%)

$2,124,800

2017

$12,816 (+3.3%)

$1,974,800

2016

$12,411 (+0.8%)

$1,775,500

2015

$12,317 (+4.1%)

$1,575,100

2014

$11,834 (+3.9%)

$1,412,200

2013

$11,395 (+3.2%)

$1,315,800

2012

$11,047 (+4.8%)

$1,302,700

2011

$10,544

$1,292,100

2010

$10,544

$1,292,100

Tax history for 21 Roberts Rd #19

Year

Property tax

Land + Additions

Assessment*

2025

$19,061 (+14.2%)

$3,001,800

2024

$16,686 (+4.0%)

$2,818,600

2023

$16,040 (+2.3%)

$2,737,200

2022

$15,675 (+2.7%)

$2,647,800

2021

$15,270 (+8.1%)

$2,610,300

2020

$14,124 (+3.9%)

$2,456,400

2019

$13,592 (+1.7%)

$2,288,200

2018

$13,365 (+4.3%)

$2,124,800

2017

$12,816 (+3.3%)

$1,974,800

2016

$12,411 (+0.8%)

$1,775,500

2015

$12,317 (+4.1%)

$1,575,100

2014

$11,834 (+3.9%)

$1,412,200

2013

$11,395 (+3.2%)

$1,315,800

2012

$11,047 (+4.8%)

$1,302,700

2011

$10,544

$1,292,100

2010

$10,544

$1,292,100

*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: 475

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

Property Information
Living Sq. Ft: 2,425
Gross Sq. Ft: 2,900
Ground Floor Sq. Ft: 2,425
# of Stories: 3
Legal Description: 000140 - 000000 - 000010 - 000001

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.: 2,425
Stories: 3.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1854
Year Renovated: —
County: Middlesex County
APN: 4784235

Home facts updated by county records on Jul 16, 2026

Around this home

Schools

John M. Tobin Montessori School

Public PreK-5 • Assigned • 0.4mi

9/10

Putnam Avenue Upper School

Public 6-8 • Assigned • 0.7mi

7/10

Cambridge Rindge and Latin School

Public 9-12 • Assigned • 0.2mi

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

63% 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

Estimated sale price

$2.30M – $2.78M

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Nearby similar homes

$815,000

2 beds1 bath877 sq ft

1105 Massachusetts Ave Unit 6A, Cambridge, MA 02138

$1,165,000

3 beds2 baths1,172 sq ft

113 Beacon St Unit B, Somerville, MA 02143

$669,000

1 bed1 bath678 sq ft

104 Beacon St #2, Somerville, MA 02143

$3,850,000

5 beds4 baths4,002 sq ft

9 Farrar St #9, Cambridge, MA 02138

$685,000

1 bed1.5 baths784 sq ft

931 Massachusetts Ave #606, Cambridge, MA 02139

3D WALKTHROUGH

$899,000

2 beds2 baths1,746 sq ft

21 Park St #2, Somerville, MA 02143

New listings for sale in 02138

EARLY ACCESSCOMPASS COMING SOON

$649,000

1 bed1 bath690 sq ft

17 Healey St #201, Cambridge, MA 02138

$1,300,000

2 beds3 baths2,000 sq ft

156 Mount Auburn St #2, Cambridge, MA 02138

$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

$875,000

2 beds1 bath1,270 sq ft

503 Huron Ave #4, Cambridge, MA 02138

Home values near 21 Roberts Rd #19

Data from public records.

Address	Redfin Estimate
29 Roberts Rd Apartment 27, Cambridge, MA 3 Beds \| 3 Baths \| 1798 Sq. Ft.	$1,546,423
23 Roberts Rd, Cambridge, MA 4 Beds \| 2 Baths \| 2110 Sq. Ft.	—

Address	Redfin Estimate
29 Roberts Rd Apartment 29, Cambridge, MA 3 Beds \| 3 Baths \| 1784 Sq. Ft.	$1,432,674
28 Roberts Rd, Cambridge, MA 3 Beds \| 1.5 Baths \| 1484 Sq. Ft.	$1,422,383

Address	Redfin Estimate
25 Roberts Rd, Cambridge, MA 3 Beds \| 1.5 Baths \| 1916 Sq. Ft.	$1,785,796
13 Roberts Rd, Cambridge, MA 6 Beds \| 3 Baths \| 3681 Sq. Ft.	$2,457,461

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