Google street view image for 20 Riverside St Unit 1-5, Watertown, MA 02472

Off market nov 1999 for $120K

$375,197

Est. refi paymentEst. refi $777/mo

•

1 ba

•

692

sq ft

20 Riverside St Unit 1-5, Watertown, MA 02472

About this home

20 Riverside St Unit 1-5 is a 692 square foot condo with 1 bedroom and 1 bathroom. - it last sold on November 22, 1999 for $120,000. Based on Redfin's Watertown data, we estimate the home's value is $375,197.

CondoProperty Type

1962Year Built

$542Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$375,197

$255K since sold in November 1999$1,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 10.3% lower than the average sale price ($419K) of 6 comparable homes.

SOLD SEP 30, 2026
$389,000
A
1 bed1 bath672 sq ft
8 Riverside St Unit 3-3, Watertown, MA 02472
SOLD SEP 10, 2026
$425,000
B
2 beds1 bath685 sq ft
14 Riverside St Unit 2-1, Watertown, MA 02472
SOLD JUL 17, 2026
$362,000
C
1 bed1 bath670 sq ft
10 William St #37, Watertown, MA 02472
SOLD AUG 18, 2026
$505,000
D
2 beds1 bath738 sq ft
68 Aldrich Rd Unit B, Watertown, MA 02472
SOLD AUG 24, 2026
$410,000
E
2 beds1 bath950 sq ft
10 Williams St #45, Watertown, MA 02472
SOLD AUG 12, 2026
$420,000
F
2 beds1 bath950 sq ft
10 Williams St #55, Watertown, MA 02472

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Earn from this home

Sell

$339,602

Est. take-home

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Refinance

Est. cash available

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Rent

$2,380/mo

Redfin rental estimate

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Market trends in 02472, MA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

100.4%

+0.7% MoM

Median sale price

$880K

$5K MoM

Avg. days on market

22d

0 days MoM

Recently sold homes

14 MoM

New listings for sale

EARLY ACCESS
$1,100,000
3 beds3 baths2,028 sq ft
5 Winter St #5, Watertown, MA 02472
$397,000
2 beds1 bath600 sq ft
50 Carey Ave #9, Watertown, MA 02472
$575,000
1 bed1 bath840 sq ft
151 Coolidge Ave #608, Watertown, MA 02472
$1,595,000
4 beds4.5 baths3,284 sq ft
200 Belmont St Unit U01, Watertown, MA 02472
$774,900
3 beds1 bath2,224 sq ft
54 Jensen Rd, Watertown, MA 02472
3D WALKTHROUGH
$899,000
3 beds2.5 baths1,344 sq ft
559 Main St, Watertown, MA 02472
VIDEO TOUR
$539,000
2 beds1 bath896 sq ft
90 Cypress St #2, Watertown, MA 02472
$850,000
6 beds2.5 baths3,078 sq ft
40-42 Irving St, Watertown, MA 02472
$1,295,000
3 beds3 baths2,331 sq ft
25 Beechwood Ave #2, Watertown, MA 02472
$1,195,000
3 beds3 baths2,034 sq ft
194 N Beacon St #1, Watertown, MA 02472
See all

Provided by Redfin

Sale history for 20 Riverside St Unit 1-5

Year

Property tax

Land + Additions

Assessment*

2026

$4,440 (+4.5%)

$363,900

2025

$4,250 (+12.3%)

$363,900

2024

$3,783 (−12.4%)

$323,300

2023

$4,320 (+8.7%)

$318,100

2022

$3,974 (+9.9%)

$299,900

2021

$3,617 (+0.9%)

$295,300

2020

$3,585 (+8.6%)

$295,300

2019

$3,300 (+2.6%)

$256,200

2018

$3,215 (+3.4%)

$238,700

2017

$3,109 (+21.9%)

$223,800

2016

$2,551 (+0.6%)

$186,500

2015

$2,537 (+0.5%)

$168,800

2014

$2,525 (+1.9%)

$168,800

2013

$2,478 (−9.5%)

$168,800

2012

$2,739 (+3.4%)

$190,200

2011

$2,648 (+1.6%)

$190,200

2010

$2,606 (+8.1%)

$195,800

2009

$2,410

$196,900

Tax history for 20 Riverside St Unit 1-5

Year

Property tax

Land + Additions

Assessment*

2026

$4,440 (+4.5%)

$363,900

2025

$4,250 (+12.3%)

$363,900

2024

$3,783 (−12.4%)

$323,300

2023

$4,320 (+8.7%)

$318,100

2022

$3,974 (+9.9%)

$299,900

2021

$3,617 (+0.9%)

$295,300

2020

$3,585 (+8.6%)

$295,300

2019

$3,300 (+2.6%)

$256,200

2018

$3,215 (+3.4%)

$238,700

2017

$3,109 (+21.9%)

$223,800

2016

$2,551 (+0.6%)

$186,500

2015

$2,537 (+0.5%)

$168,800

2014

$2,525 (+1.9%)

$168,800

2013

$2,478 (−9.5%)

$168,800

2012

$2,739 (+3.4%)

$190,200

2011

$2,648 (+1.6%)

$190,200

2010

$2,606 (+8.1%)

$195,800

2009

$2,410

$196,900

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Property details

Interior

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Heating Type: Forced Hot Water

Exterior

Exterior Information
Physical Condition: Average
Construction Type: Frame
Exterior Wall: Brick
Roof Shape Type: Flat

Property Information
Living Sq. Ft: 692
Gross Sq. Ft: 692
# of Units: 1
# of Stories: 1

Lot Information
# of Buildings: 1
Land Sq. Ft: 77,780
Municipality Name: WATERTOWN
Acres: 1.7856
Zoning Code: R.75
State Use Description: CONDOMINIUM

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 1
Baths: 1.0
Sq. Ft.: 692
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1962
Year Renovated: —
County: Middlesex County
APN: 2204525S

Home facts updated by county records on Sep 10, 2026

About this building

1 for sale

20 Riverside St, Watertown, MA 02472

See photos & sale trends

Photo via 2-3 listing

Units for sale


2-3	$359,000	1 bed	1 bath	421 sq ft

Around this home

Schools

Hosmer Elementary School

Public PreK-5 • Assigned • 0.8mi

7/10

Watertown Middle School

Public 6-8 • Assigned • 0.7mi

7/10

Watertown High School

Public 9-12 • Assigned • 0.7mi

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...
1 month ago • Watertown
Benjamin Ginsburg
Redfin Premier agent
155 deals
Was this helpful?
Watertown’s market has exploded in recent years, with high home prices. Located close to Boston, it offers the perfect balance of a seamless urban commute and the tranquility of suburban living. Enhanced by flexible MBTA bus options and its location...
1 month ago • Watertown
Kyle MacNichol
Redfin Premier agent
59 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, 16 days in 30 years

6/10 Wind Factor

54% 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 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.

9 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$357,000 – $432,000

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Nearby similar homes

VIDEO TOUR

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Listed 91 days

New listings for sale in 02472

EARLY ACCESSCOMPASS COMING SOON

$1,100,000

3 beds3 baths2,028 sq ft

5 Winter St #5, Watertown, MA 02472

Private roof deck • 360 degree views • Granite counters

$397,000

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Open-concept design • Granite countertops • Updated cabinetry

$575,000

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151 Coolidge Ave #608, Watertown, MA 02472

Recently renovated • Open floor plan • Two parking spaces

$1,595,000

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New construction • Custom millwork • Open concept layout

$774,900

3 beds1 bath2,224 sq ft

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Fenced-in yard • Bonus sunroom • Hardwood floors

3D WALKTHROUGH

$899,000

3 beds2.5 baths1,344 sq ft

559 Main St, Watertown, MA 02472

Three-season sunroom • Fully fenced yard • 5,294 sq ft lot

VIDEO TOUR

$539,000

2 beds1 bath896 sq ft

90 Cypress St #2, Watertown, MA 02472

Top-floor living • Renovated kitchen • Induction cooking

$850,000

6 beds2.5 baths3,078 sq ft

40-42 Irving St, Watertown, MA 02472

Backyard • 8,720 sq ft lot • 4 parking spots

$1,295,000

3 beds3 baths2,331 sq ft

25 Beechwood Ave #2, Watertown, MA 02472

Newly renovated • Gourmet kitchen • Custom cabinetry

Home values near 20 Riverside St Unit 1-5

Data from public records.

Address	Redfin Estimate
20 Riverside Street Unit G1, Watertown, MA 1 Beds \| 1 Baths \| 686 Sq. Ft.	$389,093
20 Riverside Street Unit G5, Watertown, MA 1 Beds \| 1 Baths \| 481 Sq. Ft.	$342,443

Address	Redfin Estimate
20 Riverside Street Unit G3, Watertown, MA - Beds \| 1 Baths \| 477 Sq. Ft.	$327,264
20 Riverside Street Unit G6, Watertown, MA 2 Beds \| 1 Baths \| 809 Sq. Ft.	$431,042

Address	Redfin Estimate
20 Riverside Street Unit G4, Watertown, MA 1 Beds \| 1 Baths \| 692 Sq. Ft.	$378,178
20 Riverside Street Unit 1-2, Watertown, MA 2 Beds \| 1 Baths \| 809 Sq. Ft.	$406,569

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