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

OFF MARKET

$2,056,929

•

2.5 ba

•

2,967

sq ft

21 Stone Rd, Belmont, MA 02478

About this home

21 Stone Rd is a 2,967 square foot house on a 0.26 acre lot with 6 bedrooms and 2.5 bathrooms. Based on Redfin's Belmont data, we estimate the home's value is $2,056,929.

Single-familyProperty Type

1915Year Built

0.26 acresLot Size

$693Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,056,929

$2,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 8.2% lower than the average sale price ($2.24M) of 6 comparable homes.

SOLD JUL 1, 2026
$1,975,000
A
4 beds2.5 baths2,708 sq ft
38 Payson Terace, Belmont, MA 02478
SOLD JUL 22, 2026
$2,000,000
B
4 beds3 baths3,570 sq ft
248 Slade St, Belmont, MA 02478
SOLD NOV 14, 2025
$2,750,000
C
5 beds3.5 baths2,994 sq ft
16 Fairmont St, Belmont, MA 02478
SOLD JUN 22, 2026
$2,050,000
D
4 beds2.5 baths2,731 sq ft
70 Goden St, Belmont, MA 02478
SOLD MAR 26, 2026
$2,925,000
E
5 beds3.5 baths3,386 sq ft
11 Hillcrest Rd, Belmont, MA 02478
SOLD JAN 28, 2026
$1,750,000
F
5 beds2.5 baths3,124 sq ft
30 Payson Rd, Belmont, MA 02478

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$1,953,988

Est. take-home

List your home with Redfin and save $10,285

Rent

$6,856/mo

Redfin rental estimate

List your home for rent

Market trends in 02478, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.7%

+0.1% MoM

Median sale price

$1.4M

$29K MoM

Avg. days on market

16d

1 days MoM

Recently sold homes

14 MoM

New listings for sale

OPEN FRI, 11AM TO 12:30PM
$929,900
3 beds2.5 baths1,845 sq ft
81 Grant Ave #81, Belmont, MA 02478
OPEN SUN, 1:30PM TO 2:45PM
$2,499,000
5 beds3.5 baths2,859 sq ft
45 Wellesley Rd, Belmont, MA 02478
See all

Provided by Redfin

Sale history for 21 Stone Rd

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

Year

Property tax

Land + Additions

Assessment*

2025

$23,680 (+9.0%)

$1,065,000 + $1,014,000

$2,079,000

2024

$21,732 (+11.4%)

$1,328,000 + $730,000

$2,058,000

2023

$19,501 (+5.3%)

$1,013,000 + $722,000

$1,735,000

2022

$18,519 (+2.0%)

$927,000 + $675,000

$1,602,000

2021

$18,152 (−9.9%)

$1,014,000 + $559,000

$1,573,000

2020

$20,141 (+13.8%)

$1,082,000 + $749,000

$1,831,000

2019

$17,692 (+8.9%)

$844,000 + $672,000

$1,516,000

2018

$16,245 (+0.3%)

$682,000 + $655,000

$1,337,000

2017

$16,192 (+1.4%)

$626,000 + $650,000

$1,276,000

2016

$15,964 (+5.9%)

$626,000 + $645,000

$1,271,000

2015

$15,080 (+1.5%)

$534,000 + $635,000

$1,169,000

2014

$14,850 (+1.3%)

$471,000 + $629,000

$1,100,000

2013

$14,663 (+1.6%)

$471,000 + $629,000

$1,100,000

2012

$14,431 (+3.2%)

$395,000 + $686,000

$1,081,000

2011

$13,981 (+4.0%)

$395,000 + $661,000

$1,056,000

2010

$13,449 (+2.9%)

$395,000 + $711,000

$1,106,000

2009

$13,067

$402,000 + $697,000

$1,099,000

Tax history for 21 Stone Rd

Year

Property tax

Land + Additions

Assessment*

2025

$23,680 (+9.0%)

$1,065,000 + $1,014,000

$2,079,000

2024

$21,732 (+11.4%)

$1,328,000 + $730,000

$2,058,000

2023

$19,501 (+5.3%)

$1,013,000 + $722,000

$1,735,000

2022

$18,519 (+2.0%)

$927,000 + $675,000

$1,602,000

2021

$18,152 (−9.9%)

$1,014,000 + $559,000

$1,573,000

2020

$20,141 (+13.8%)

$1,082,000 + $749,000

$1,831,000

2019

$17,692 (+8.9%)

$844,000 + $672,000

$1,516,000

2018

$16,245 (+0.3%)

$682,000 + $655,000

$1,337,000

2017

$16,192 (+1.4%)

$626,000 + $650,000

$1,276,000

2016

$15,964 (+5.9%)

$626,000 + $645,000

$1,271,000

2015

$15,080 (+1.5%)

$534,000 + $635,000

$1,169,000

2014

$14,850 (+1.3%)

$471,000 + $629,000

$1,100,000

2013

$14,663 (+1.6%)

$471,000 + $629,000

$1,100,000

2012

$14,431 (+3.2%)

$395,000 + $686,000

$1,081,000

2011

$13,981 (+4.0%)

$395,000 + $661,000

$1,056,000

2010

$13,449 (+2.9%)

$395,000 + $711,000

$1,106,000

2009

$13,067

$402,000 + $697,000

$1,099,000

*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: 2
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Steam

Fireplace Information
# of Fireplaces: 2
Has Fireplace

Room Information
# of Rooms: 15

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Colonial
Construction Type: Frame
Exterior Wall: Stone/Stucco

Property Information
Living Sq. Ft: 2,967
Ground Floor Sq. Ft: 1,140
# of Units: 1
# of Stories: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 11,326
Municipality Name: BELMONT
Acres: 0.26
Zoning Code: SC
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 6
Baths: 2.5
Sq. Ft.: 2,967
Stories: 2.0
Lot Size: 0.26 acres
Style: Single Family Residential
Year Built: 1915
Year Renovated: 1915
County: Middlesex County
APN: 1660657S

Home facts updated by county records on Jul 30, 2026

Around this home

Schools

Mary Lee Burbank School

Public K-3 • Assigned • 0.2mi

10/10

Belmont High School

Public 9-12 • Assigned • 0.3mi

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
151 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

5/10 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 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

$1.96M – $2.37M

Reach more buyers when you sell with Redfin. Save up to $20,569 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

OPEN SUN, 1PM TO 2:30PM

$2,399,000

5 beds4 baths3,297 sq ft

3 Essex Rd, Belmont, MA 02478

$2,295,000

4 beds3.5 baths3,008 sq ft

69 Horace Rd, Belmont, MA 02478

$995,000

4 beds2.5 baths2,712 sq ft

291 Brighton St, Belmont, MA 02478

3D WALKTHROUGH

$1,225,000

3 beds1.5 baths1,622 sq ft

6 Shaw Rd, Belmont, MA 02478

$1,299,000

3 beds1.5 baths1,746 sq ft

16 West St, Belmont, MA 02478

3D & VIDEO TOUR

$1,995,000

4 beds3.5 baths2,756 sq ft

128 Watson Rd, Belmont, MA 02478

New listings for sale in 02478

OPEN FRI, 11AM TO 12:30PM

$929,900

3 beds2.5 baths1,845 sq ft

81 Grant Ave #81, Belmont, MA 02478

OPEN SUN, 1:30PM TO 2:45PM

$2,499,000

5 beds3.5 baths2,859 sq ft

45 Wellesley Rd, Belmont, MA 02478

Home values near 21 Stone Rd

Data from public records.

Address	Redfin Estimate
20 Stone Rd, Belmont, MA 4 Beds \| 2.5 Baths \| 2097 Sq. Ft.	$2,196,911
48 Stone Rd, Belmont, MA 5 Beds \| 4 Baths \| 3470 Sq. Ft.	$2,893,876

Address	Redfin Estimate
28 Stone Rd, Belmont, MA 4 Beds \| 2.5 Baths \| 2301 Sq. Ft.	$2,120,741
56 Stone Rd, Belmont, MA 3 Beds \| 2.5 Baths \| 1768 Sq. Ft.	$1,919,548

Address	Redfin Estimate
44 Stone Rd, Belmont, MA 4 Beds \| 3.5 Baths \| 2394 Sq. Ft.	$2,063,687
60 Stone Rd, Belmont, MA 4 Beds \| 3.5 Baths \| 2375 Sq. Ft.	$2,539,495

More real estate resources

Cities
Neighborhoods
Zip Codes
Minor Civil Divisions
Popular Searches

Cambridge homes for sale
Boston homes for sale
Newton homes for sale

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

02474 homes for sale
02476 homes for sale
02478 homes for sale
02452 homes for sale
02472 homes for sale

Houses for rent in Belmont	Agents near me	Quincy, MA homes for sale	Belmont Housing Market
Houses for sale near me	Boston, MA homes for sale	Brookline, MA homes for sale
Land for sale near me	Newton, MA homes for sale	Arlington, MA homes for sale
Open Houses near me	Cambridge, MA homes for sale	Belmont Property Records
Condos for sale near me	Lexington, MA homes for sale	MA New Listings