OFF MARKET

$1,206,897

•

2 ba

•

2,692

sq ft

21 Sunnybank Rd, Watertown, MA 02472

About this home

21 Sunnybank Rd is a 2,692 square foot multi-family home on a 6,098 square foot lot with 4 bedrooms and 2 bathrooms. Based on Redfin's Watertown data, we estimate the home's value is $1,206,897.

Multi-familyProperty Type

1925Year Built

6,098 sq ftLot Size

$448Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,206,897

$4,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 18.9% lower than the average sale price ($1.49M) of 6 comparable homes.

SOLD JUL 17, 2026
$2,700,000
A
4 beds2.5 baths2,424 sq ft
61 Larchwood Dr, Cambridge, MA 02138
SOLD DEC 19, 2025
$1,292,500
B
5 beds2 baths2,392 sq ft
133 Hillside, Watertown, MA 02472
SOLD APR 24, 2026
$1,300,000
C
5 beds2 baths2,732 sq ft
7-9 Clyde Rd, Watertown, MA 02472
SOLD JUL 9, 2026
$1,089,000
D
4 beds2 baths2,226 sq ft
9 Fairview Ave, Watertown, MA 02472
SOLD AUG 11, 2026
$1,225,000
E
4 beds2 baths2,862 sq ft
13-15 Columbia St, Watertown, MA 02472
SOLD JUN 5, 2026
$1,325,000
F
5 beds2 baths2,771 sq ft
93-95 Poplar St, Watertown, MA 02472

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Earn from this home

Sell

$1,146,083

Est. take-home

List your home with Redfin and save $6,034

Market trends in 02472, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.6%

+0.1% MoM

Median sale price

$850K

$5K MoM

Avg. days on market

19d

0 days MoM

Recently sold homes

102

6 MoM

New listings for sale

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$1,250,000
4 beds2 baths2,200 sq ft
6 Bates Rd E, Watertown, MA 02472
OPEN TODAY, 11AM TO 1PM
$759,000
2 beds2 baths1,050 sq ft
20 Beechwood Ave Unit A-2, Watertown, MA 02472
$545,000
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956 Belmont #956, Washington, DC 20472
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97 Melendy Ave #97, Watertown, MA 02472
OPEN TODAY, 12PM TO 1:30PM
$650,000
2 beds1.5 baths1,683 sq ft
9 Circuit Ln #9, Watertown, MA 02472
OPEN SUN, 11AM TO 12:30PM
$525,000
2 beds1 bath1,231 sq ft
84 Duff St #84, Watertown, MA 02472
OPEN TODAY, 12PM TO 1:30PM
$599,000
2 beds2 baths1,270 sq ft
131 Coolidge Ave #526, Watertown, MA 02472
$1,499,000
5 beds2 baths2,416 sq ft
27 Woodleigh Rd, Watertown, MA 02472
$1,099,000
5 beds3 baths2,300 sq ft
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See all

Provided by Redfin

Sale history for 21 Sunnybank Rd

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

Year

Property tax

Land + Additions

Assessment*

2026

$14,974 (+7.5%)

$607,700 + $619,700

$1,227,400

2025

$13,935 (+7.9%)

$607,700 + $585,400

$1,193,100

2024

$12,912 (−9.6%)

$599,900 + $503,700

$1,103,600

2023

$14,281 (+7.1%)

$562,400 + $489,200

$1,051,600

2022

$13,340 (+14.3%)

$517,400 + $489,400

$1,006,800

2021

$11,672 (+1.9%)

$479,900 + $472,900

$952,800

2020

$11,449 (+2.7%)

$479,900 + $463,200

$943,100

2019

$11,150 (−0.2%)

$479,900 + $385,800

$865,700

2018

$11,171 (−1.2%)

$479,900 + $349,400

$829,300

2017

$11,311 (+7.5%)

$464,900 + $349,400

$814,300

2016

$10,524 (+8.9%)

$419,900 + $349,400

$769,300

2015

$9,660 (+2.9%)

$378,700 + $264,000

$642,700

2014

$9,390 (+1.9%)

$363,700 + $264,000

$627,700

2013

$9,215 (+5.1%)

$363,700 + $264,000

$627,700

2012

$8,768 (+5.9%)

$344,900 + $264,000

$608,900

2011

$8,277 (+4.6%)

$311,200 + $283,400

$594,600

2010

$7,914 (−0.7%)

$311,200 + $283,400

$594,600

2009

$7,972

$353,500 + $297,800

$651,300

Tax history for 21 Sunnybank Rd

Year

Property tax

Land + Additions

Assessment*

2026

$14,974 (+7.5%)

$607,700 + $619,700

$1,227,400

2025

$13,935 (+7.9%)

$607,700 + $585,400

$1,193,100

2024

$12,912 (−9.6%)

$599,900 + $503,700

$1,103,600

2023

$14,281 (+7.1%)

$562,400 + $489,200

$1,051,600

2022

$13,340 (+14.3%)

$517,400 + $489,400

$1,006,800

2021

$11,672 (+1.9%)

$479,900 + $472,900

$952,800

2020

$11,449 (+2.7%)

$479,900 + $463,200

$943,100

2019

$11,150 (−0.2%)

$479,900 + $385,800

$865,700

2018

$11,171 (−1.2%)

$479,900 + $349,400

$829,300

2017

$11,311 (+7.5%)

$464,900 + $349,400

$814,300

2016

$10,524 (+8.9%)

$419,900 + $349,400

$769,300

2015

$9,660 (+2.9%)

$378,700 + $264,000

$642,700

2014

$9,390 (+1.9%)

$363,700 + $264,000

$627,700

2013

$9,215 (+5.1%)

$363,700 + $264,000

$627,700

2012

$8,768 (+5.9%)

$344,900 + $264,000

$608,900

2011

$8,277 (+4.6%)

$311,200 + $283,400

$594,600

2010

$7,914 (−0.7%)

$311,200 + $283,400

$594,600

2009

$7,972

$353,500 + $297,800

$651,300

*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: 1,346

Bathroom Information
# of Full Baths: 2

Heating & Cooling
Heating Type: Forced Hot Water

Fireplace Information
# of Fireplaces: 2
Has Fireplace

Room Information
# of Rooms: 10

Exterior

Exterior Information
Physical Condition: Average
Construction Type: Frame
Exterior Wall: Wood Siding/Shingle
Roof Shape Type: Hip

Property Information
Living Sq. Ft: 2,692
Gross Sq. Ft: 5,787
# of Units: 2
# of Stories: 3

Parking & Garage Information
Parking Type: Basement Garage
Garage / Carport Type: Basement

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,098
Municipality Name: WATERTOWN
Acres: 0.14
Zoning Code: T
State Use Description: 2-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 2,692
Stories: 3.0
Lot Size: 6,098 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1925
Year Renovated: —
County: Middlesex County
APN: 327200S

Home facts updated by county records on Jul 29, 2026

Around this home

Schools

Hosmer Elementary School

Public PreK-5 • Assigned • 0.3mi

7/10

Watertown Middle School

Public 6-8 • Assigned • 1.3mi

7/10

Watertown High School

Public 9-12 • Assigned • 1.4mi

6/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Watertown's urban-suburban feeling paired with its proximity to Cambridge & Boston have caused it to rapidly transform into a destination for home buyers. Historically a manufacturing city, it has changed into a restaurant, shopping, and biotech hub...
2 months ago • Watertown
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

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

5/10 Heat Factor

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

6/10 Wind Factor

59% chance of strong winds in next 30 years

3/10 Air Factor

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

Provided by First Street

Historical weather

Watertown, MA • 02472

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

$1.15M – $1.39M

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Home values near 21 Sunnybank Rd

Data from public records.

Address	Redfin Estimate
14 Sunnybank Rd, Watertown, MA 6 Beds \| 2 Baths \| 2600 Sq. Ft.	$1,194,048
9 Sunnybank Rd, Watertown, MA 3 Beds \| 1.5 Baths \| 1536 Sq. Ft.	$1,016,349

Address	Redfin Estimate
20 Sunnybank Rd, Watertown, MA 9 Beds \| 7 Baths \| 4103 Sq. Ft.	$1,856,296
15 Sunnybank Rd, Watertown, MA 5 Beds \| 4 Baths \| 3830 Sq. Ft.	$1,506,031

Address	Redfin Estimate
24 Sunnybank Rd, Watertown, MA 4 Beds \| 2 Baths \| 2718 Sq. Ft.	$1,189,793
16 Sunnybank Rd, Watertown, MA 3 Beds \| 1 Baths \| 1443 Sq. Ft.	$1,202,256

Property information provided by undefined .

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