Google street view image for 18 Ralph St, Watertown, MA 02472

OFF MARKET

$851,507

•

2.5 ba

•

1,148

sq ft

18 Ralph St, Watertown, MA 02472

About this home

18 Ralph St is a 1,148 square foot house on a 8,712 square foot lot with 2 bedrooms and 2.5 bathrooms. Based on Redfin's Watertown data, we estimate the home's value is $851,507.

Single-familyProperty Type

1949Year Built

8,712 sq ftLot Size

$742Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$851,507

$7,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 10.6% lower than the average sale price ($953K) of 6 comparable homes.

SOLD AUG 6, 2026
$790,000
A
4 beds2 baths1,344 sq ft
111 Warren St, Waltham, MA 02453
SOLD NOV 3, 2025
$925,000
B
3 beds2.5 baths1,600 sq ft
60 Everett Ave, Watertown, MA 02472
SOLD JUL 10, 2026
$1,260,000
C
3 beds2 baths1,170 sq ft
16 Melbourne Ave, Newton, MA 02460
SOLD JUL 1, 2026
$1,102,000
D
3 beds2 baths1,558 sq ft
91 Canterbury Rd, Waltham, MA 02453
SOLD DEC 19, 2025
$860,000
E
3 beds1.5 baths1,269 sq ft
28 Whitney St, Watertown, MA 02472
SOLD JUN 4, 2026
$780,000
F
3 beds1 bath1,260 sq ft
10 Parsons Ave, Waltham, MA 02453

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Earn from this home

Sell

$808,306

Est. take-home

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Rent

$3,427/mo

Redfin rental estimate

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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

OPEN FRI, 11AM TO 12PM
$759,000
2 beds2 baths1,050 sq ft
20 Beechwood Ave Unit A-2, Watertown, MA 02472
$545,000
2 beds1.5 baths1,311 sq ft
956 Belmont #956, Washington, DC 20472
$869,900
3 beds1.5 baths1,873 sq ft
97 Melendy Ave #97, Watertown, MA 02472
$650,000
2 beds1.5 baths1,683 sq ft
9 Circuit Ln #9, Watertown, MA 02472
3D WALKTHROUGH
$525,000
2 beds1 bath1,231 sq ft
84 Duff St #84, Watertown, MA 02472
OPEN SAT, 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
7 Hearn, Watertown, MA 02472
3D WALKTHROUGH
$695,000
3 beds1 bath1,186 sq ft
52 Ralph St #52, Watertown, MA 02472
See all

Provided by Redfin

Sale history for 18 Ralph St

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

Year

Property tax

Land + Additions

Assessment*

2026

$9,222 (+6.8%)

$504,900 + $251,000

$755,900

2025

$8,636 (+10.2%)

$504,900 + $234,500

$739,400

2024

$7,840 (−10.2%)

$482,400 + $187,700

$670,100

2023

$8,729 (+9.7%)

$459,400 + $183,400

$642,800

2022

$7,957 (+11.0%)

$436,500 + $164,000

$600,500

2021

$7,169 (+3.6%)

$421,200 + $164,000

$585,200

2020

$6,917 (+2.4%)

$405,800 + $164,000

$569,800

2019

$6,754 (−1.8%)

$390,500 + $133,900

$524,400

2018

$6,879 (+15.3%)

$382,900 + $127,800

$510,700

2017

$5,967 (+8.9%)

$329,300 + $100,300

$429,600

2016

$5,480 (−3.5%)

$314,000 + $86,600

$400,600

2015

$5,677 (+7.0%)

$291,000 + $86,700

$377,700

2014

$5,306 (+1.9%)

$268,000 + $86,700

$354,700

2013

$5,207 (+7.1%)

$268,000 + $86,700

$354,700

2012

$4,860 (+5.6%)

$250,800 + $86,700

$337,500

2011

$4,601 (+0.5%)

$250,800 + $79,700

$330,500

2010

$4,577 (+0.4%)

$264,200 + $79,700

$343,900

2009

$4,558

$269,200 + $103,200

$372,400

Tax history for 18 Ralph St

Year

Property tax

Land + Additions

Assessment*

2026

$9,222 (+6.8%)

$504,900 + $251,000

$755,900

2025

$8,636 (+10.2%)

$504,900 + $234,500

$739,400

2024

$7,840 (−10.2%)

$482,400 + $187,700

$670,100

2023

$8,729 (+9.7%)

$459,400 + $183,400

$642,800

2022

$7,957 (+11.0%)

$436,500 + $164,000

$600,500

2021

$7,169 (+3.6%)

$421,200 + $164,000

$585,200

2020

$6,917 (+2.4%)

$405,800 + $164,000

$569,800

2019

$6,754 (−1.8%)

$390,500 + $133,900

$524,400

2018

$6,879 (+15.3%)

$382,900 + $127,800

$510,700

2017

$5,967 (+8.9%)

$329,300 + $100,300

$429,600

2016

$5,480 (−3.5%)

$314,000 + $86,600

$400,600

2015

$5,677 (+7.0%)

$291,000 + $86,700

$377,700

2014

$5,306 (+1.9%)

$268,000 + $86,700

$354,700

2013

$5,207 (+7.1%)

$268,000 + $86,700

$354,700

2012

$4,860 (+5.6%)

$250,800 + $86,700

$337,500

2011

$4,601 (+0.5%)

$250,800 + $79,700

$330,500

2010

$4,577 (+0.4%)

$264,200 + $79,700

$343,900

2009

$4,558

$269,200 + $103,200

$372,400

*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: 1,148

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 5

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Ranch
Construction Type: Frame
Exterior Wall: Vinyl
Roof Shape Type: Gable

Property Information
Living Sq. Ft: 1,148
Gross Sq. Ft: 2,938
# of Units: 1
# of Stories: 1

Lot Information
# of Buildings: 1
Land Sq. Ft: 8,712
Municipality Name: WATERTOWN
Acres: 0.2
Zoning Code: S-6
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 2
Baths: 2.5
Sq. Ft.: 1,148
Stories: 1.0
Lot Size: 8,712 square feet
Style: Single Family Residential
Year Built: 1949
Year Renovated: —
County: Middlesex County
APN: 307410S

Home facts updated by county records on Jul 29, 2026

Around this home

Schools

Cunniff Elementary School

Public PreK-5 • Assigned • 0.4mi

8/10

Watertown Middle School

Public 6-8 • Assigned • 0.6mi

7/10

Watertown High School

Public 9-12 • Assigned • 0.6mi

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
151 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

5/10 Heat Factor

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

6/10 Wind Factor

53% 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

$809,000 – $980,000

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Nearby similar homes

$1,380,000

4 beds2.5 baths2,666 sq ft

13 Green St Unit _, Newton, MA 02458

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4 beds3.5 baths3,020 sq ft

16-26 Dalby St #3, Newton, MA 02458

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3 beds1.5 baths1,746 sq ft

16 West St, Belmont, MA 02478

$789,999

2 beds2 baths1,426 sq ft

218 Warren, Watertown, MA 02472

$1,139,000

4 beds2 baths2,057 sq ft

158 Warren St, Waltham, MA 02453

3D WALKTHROUGH

$1,679,000

3 beds4.5 baths2,720 sq ft

329 Warren, Waltham, MA 02453

New listings for sale in 02472

OPEN FRI, 11AM TO 12PM

$759,000

2 beds2 baths1,050 sq ft

20 Beechwood Ave Unit A-2, Watertown, MA 02472

$545,000

2 beds1.5 baths1,311 sq ft

956 Belmont #956, Washington, DC 20472

$869,900

3 beds1.5 baths1,873 sq ft

97 Melendy Ave #97, Watertown, MA 02472

$650,000

2 beds1.5 baths1,683 sq ft

9 Circuit Ln #9, Watertown, MA 02472

3D WALKTHROUGH

$525,000

2 beds1 bath1,231 sq ft

84 Duff St #84, Watertown, MA 02472

OPEN SAT, 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

7 Hearn, Watertown, MA 02472

3D WALKTHROUGH

$695,000

3 beds1 bath1,186 sq ft

52 Ralph St #52, Watertown, MA 02472

Home values near 18 Ralph St

Data from public records.

Address	Redfin Estimate
7 Ralph St, Watertown, MA 3 Beds \| 2 Baths \| 1649 Sq. Ft.	$1,013,605
31 Ralph St, Watertown, MA 4 Beds \| 1 Baths \| 1756 Sq. Ft.	$989,391

Address	Redfin Estimate
15 Ralph St, Watertown, MA 4 Beds \| 2 Baths \| 1496 Sq. Ft.	$1,006,149
35 Ralph St, Watertown, MA 4 Beds \| 1.5 Baths \| 1170 Sq. Ft.	$872,079

Address	Redfin Estimate
21 Ralph St, Watertown, MA 3 Beds \| 2 Baths \| 1104 Sq. Ft.	$911,104
41 Ralph St, Watertown, MA 2 Beds \| 1.5 Baths \| 1224 Sq. Ft.	$785,366

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 02472, MA

Sale history for 18 Ralph St

Tax history for 18 Ralph St

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 02472

Home values near 18 Ralph St

More real estate resources