Google street view image for 21 Waterhouse Rd, Belmont, MA 02478

Off market

$1,304,287

•

1.5 ba

•

1,775

sq ft

21 Waterhouse Rd, Belmont, MA 02478

About this home

21 Waterhouse Rd is a 1,775 square foot house on a 6,534 square foot lot with 3 bedrooms and 1.5 bathrooms. Based on Redfin's Belmont data, we estimate the home's value is $1,304,287.

Single-familyProperty Type

1938Year Built

6,534 sq ftLot Size

$735Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,304,287

$9,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.9% lower than the average sale price ($1.40M) of 6 comparable homes.

SOLD OCT 23, 2026
$1,400,000
A
3 beds1.5 baths1,526 sq ft
33 Underwood St, Belmont, MA 02478
SOLD JUL 13, 2026
$1,575,000
B
3 beds1.5 baths1,756 sq ft
136 Alexander Ave, Belmont, MA 02478
SOLD SEP 28, 2026
$1,500,000
C
3 beds1.5 baths1,790 sq ft
36 Richardson Rd, Belmont, MA 02478
SOLD AUG 27, 2026
$1,210,000
D
3 beds1.5 baths1,716 sq ft
45 Simmons Ave, Belmont, MA 02478
SOLD AUG 19, 2026
$1,270,000
E
3 beds1.5 baths1,833 sq ft
62 Princeton Rd, Arlington, MA 02474
SOLD AUG 3, 2026
$1,449,000
F
3 beds1.5 baths1,920 sq ft
22 Ivy Rd, Belmont, MA 02478

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Earn from this home

Sell

$1,238,647

Est. take-home

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Rent

$4,299/mo

Redfin rental estimate

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Market trends in 02478, MA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

100.3%

1.8% MoM

Median sale price

$1.5M

$82K MoM

Avg. days on market

22d

3 days MoM

Recently sold homes

3 MoM

New listings for sale

NEW 13 HRS AGO
$1,250,000
3 beds2 baths1,860 sq ft
159 White St #159, Belmont, MA 02478
$1,395,000
6 beds3 baths3,876 sq ft
61 Grove St, Belmont, MA 02478
EARLY ACCESS
$699,000
2 beds1 bath1,326 sq ft
28 Crescent Rd #28, Belmont, MA 02478
$1,299,000
4 beds2 baths2,588 sq ft
3-5 Jeanette Ave, Belmont, MA 02478
LISTED BY REDFIN
$1,219,800
3 beds3.5 baths2,476 sq ft
47 Moraine St #47, Belmont, MA 02478
$1,200,000
4 beds2 baths2,214 sq ft
11 Pearl St, Belmont, MA 02478
See all

Provided by Redfin

Sale history for 21 Waterhouse Rd

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

Year

Property tax

Land + Additions

Assessment*

2025

$12,814 (+5.3%)

$714,000 + $411,000

$1,125,000

2024

$12,165 (−4.6%)

$841,000 + $311,000

$1,152,000

2023

$12,757 (+4.6%)

$840,000 + $295,000

$1,135,000

2022

$12,196 (+6.0%)

$769,000 + $286,000

$1,055,000

2021

$11,505 (+6.1%)

$761,000 + $236,000

$997,000

2020

$10,846 (+15.0%)

$750,000 + $236,000

$986,000

2019

$9,429 (+3.5%)

$580,000 + $228,000

$808,000

2018

$9,113 (+1.6%)

$522,000 + $228,000

$750,000

2017

$8,972 (+4.1%)

$479,000 + $228,000

$707,000

2016

$8,616 (+6.9%)

$479,000 + $207,000

$686,000

2015

$8,063 (+5.3%)

$407,000 + $218,000

$625,000

2014

$7,655 (+1.3%)

$349,000 + $218,000

$567,000

2013

$7,558 (+6.4%)

$349,000 + $218,000

$567,000

2012

$7,102 (+2.4%)

$292,000 + $240,000

$532,000

2011

$6,938 (+5.5%)

$292,000 + $232,000

$524,000

2010

$6,579 (+2.1%)

$292,000 + $249,000

$541,000

2009

$6,444

$298,000 + $244,000

$542,000

Tax history for 21 Waterhouse Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,814 (+5.3%)

$714,000 + $411,000

$1,125,000

2024

$12,165 (−4.6%)

$841,000 + $311,000

$1,152,000

2023

$12,757 (+4.6%)

$840,000 + $295,000

$1,135,000

2022

$12,196 (+6.0%)

$769,000 + $286,000

$1,055,000

2021

$11,505 (+6.1%)

$761,000 + $236,000

$997,000

2020

$10,846 (+15.0%)

$750,000 + $236,000

$986,000

2019

$9,429 (+3.5%)

$580,000 + $228,000

$808,000

2018

$9,113 (+1.6%)

$522,000 + $228,000

$750,000

2017

$8,972 (+4.1%)

$479,000 + $228,000

$707,000

2016

$8,616 (+6.9%)

$479,000 + $207,000

$686,000

2015

$8,063 (+5.3%)

$407,000 + $218,000

$625,000

2014

$7,655 (+1.3%)

$349,000 + $218,000

$567,000

2013

$7,558 (+6.4%)

$349,000 + $218,000

$567,000

2012

$7,102 (+2.4%)

$292,000 + $240,000

$532,000

2011

$6,938 (+5.5%)

$292,000 + $232,000

$524,000

2010

$6,579 (+2.1%)

$292,000 + $249,000

$541,000

2009

$6,444

$298,000 + $244,000

$542,000

*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 Type: Full

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

Heating & Cooling
Heating Type: Forced Air

Fireplace Information
# of Fireplaces: 2
Has Fireplace

Room Information
# of Rooms: 6

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: Garrison/Frontier
Construction Type: Frame
Exterior Wall: Aluminum/Vinyl

Property Information
Living Sq. Ft: 1,775
Ground Floor Sq. Ft: 682
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,534
Municipality Name: BELMONT
Acres: 0.15
Zoning Code: SC
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 3
Baths: 1.5
Sq. Ft.: 1,775
Stories: 2.0
Lot Size: 6,534 square feet
Style: Single Family Residential
Year Built: 1938
Year Renovated: 1938
County: Middlesex County
APN: 1635318S

Home facts updated by county records on Sep 11, 2026

Around this home

Schools

K - 12
Preschool & daycare

Winn Brook School

Public K-3 • Assigned • 0.2mi

10/10

Belmont High School

Public 9-12 • Assigned • 0.2mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Belmont is a low-inventory, high-demand market driven both by restrictive zoning laws & proximity to Cambridge. New housing production is scarce, with demand for properties always exceeding supply. This will keep the market difficult for buyers and...
2 months ago • Belmont
Benjamin Ginsburg
Redfin Premier agent
155 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

58% 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

Belmont, MA • 02478

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

$1.24M – $1.50M

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New listings for sale in 02478

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159 White St #159, Belmont, MA 02478

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61 Grove St, Belmont, MA 02478

High ceilings • French doors • Solid rental history

EARLY ACCESSREDFIN OPEN SAT, 11AM TO 1PM

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28 Crescent Rd #28, Belmont, MA 02478

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4 beds2 baths2,588 sq ft

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Shops • Restaurants • Large living room

LISTED BY REDFIN3D & VIDEO TOUR

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47 Moraine St #47, Belmont, MA 02478

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$1,200,000

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Two family home • Dead end street • Prime location

Home values near 21 Waterhouse Rd

Data from public records.

Address	Redfin Estimate
4 Waterhouse Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1742 Sq. Ft.	$1,320,941
39 Waterhouse Road, Belmont, MA 2 Beds \| 1 Baths \| 840 Sq. Ft.	$1,010,117
3 Waterhouse Road, Belmont, MA 4 Beds \| 3.5 Baths \| 2730 Sq. Ft.	$1,797,243
53 Statler Road, Belmont, MA 3 Beds \| 2 Baths \| 2474 Sq. Ft.	$1,331,436
258 Channing Road, Belmont, MA 3 Beds \| 2 Baths \| 1167 Sq. Ft.	$970,855
52 Statler Road, Belmont, MA 3 Beds \| 2.5 Baths \| 1775 Sq. Ft.	$1,667,422
31 Statler Road, Belmont, MA 3 Beds \| 2.5 Baths \| 1525 Sq. Ft.	$1,447,216

Address	Redfin Estimate
10 Waterhouse Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1725 Sq. Ft.	$1,438,890
15 Waterhouse Road, Belmont, MA 3 Beds \| 2.5 Baths \| 2300 Sq. Ft.	$1,733,339
39 Waterhouse Road #239, Belmont, MA 2 Beds \| 1 Baths \| 840 Sq. Ft.	$763,693
47 Statler Road, Belmont, MA 3 Beds \| 2 Baths \| 1940 Sq. Ft.	$1,469,385
264 Channing Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1505 Sq. Ft.	$1,105,070
58 Statler Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1433 Sq. Ft.	$1,202,358
25 Statler Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1457 Sq. Ft.	$1,172,742

Address	Redfin Estimate
16 Waterhouse Road, Belmont, MA 3 Beds \| 2.5 Baths \| 2086 Sq. Ft.	$1,541,381
9 Waterhouse Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1500 Sq. Ft.	$1,152,659
57 Statler Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1349 Sq. Ft.	$1,271,073
4 Westlund Road, Belmont, MA 4 Beds \| 1.5 Baths \| 1715 Sq. Ft.	$1,295,625
44 Statler Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1589 Sq. Ft.	$1,335,585
37 Statler Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1340 Sq. Ft.	$1,314,170
24 Eliot Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1418 Sq. Ft.	$1,239,944

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