OFF MARKET

Off Market Dec 2020 for $840K

$1,204,427

•

1,949

sq ft

21 Ridge Rd, Belmont, MA 02478

About this home

Escape to this warm and inviting colonial set on a quiet side street in highly-sought after Belmont neighborhood. 3 levels of restored architectural finishes with 4 generously-sized bedrooms, 1.5 renovated baths, formal dining room, spacious living room, captivating gourmet kitchen. This beautiful home retains its amazing period detail along with great natural light, high ceilings and hardwood floors throughout. 2 Additional bonus office/playrooms. Central AC, Garage parking. Professionally landscaped and exquisite private grounds -- perfect for all kinds of outdoor fun! Proximity to Cushing Square, Belmont Center, schools, parks, public transportation, Cambridge and Boston.

Single-familyProperty Type

1910Year Built

3,653 sq ftLot Size

$618Est. Price/Sq.Ft.

1 garage spacesParking

Listed by Michael Olin • Conway - Brighton

Bought with Ellen Sullivan • Coldwell Banker Realty - Belmont

Redfin checked: 2 minutes ago

•Source:MLS PIN #72723216

Redfin Estimate

$1,204,427

$364K since sold in December 2020$0 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 11.4% higher than the average sale price ($1.08M) of 6 comparable homes.

SOLD JUN 11, 2026
$980,000
A
4 beds2 baths2,000 sq ft
25 Barnes St, Waltham, MA 02453
SOLD JUN 2, 2026
$975,000
B
4 beds1.5 baths1,610 sq ft
20 Hall Ave, Watertown, MA 02472
SOLD DEC 15, 2025
$1,170,000
C
4 beds1.5 baths1,900 sq ft
1 Bridgham Ave, Watertown, MA 02472
SOLD OCT 28, 2025
$1,062,500
D
4 beds1.5 baths1,780 sq ft
17 Ripley Rd, Belmont, MA 02478
BOUGHT WITH REDFIN MAY 29, 2026
$1,348,000
E
3 beds1.5 baths1,869 sq ft
290 Orchard St, Belmont, MA 02478
SOLD JUN 10, 2026
$950,000
F
4 beds2 baths1,872 sq ft
7-9 Sparkill St, Watertown, MA 02472

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Earn from this home

Sell

$546,736

Est. take-home

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Rent

$5,127/mo

Redfin rental estimate

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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 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

Redfin agents who toured

Two rooms in finished attic. Master bedroom is of modest size and has standard, one-door closet. Landscaping is beautiful but overall open green space is limited.
6 years ago• May not reflect the current state of the home
Terence Egan
Redfin Associate agent

Sale history for 21 Ridge Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,026 (−1.0%)

$545,000 + $423,000

$968,000

2024

$11,141 (+0.8%)

$722,000 + $333,000

$1,055,000

2023

$11,049 (+18.3%)

$681,000 + $302,000

$983,000

2022

$9,340 (−14.5%)

$623,000 + $185,000

$808,000

2021

$10,928 (+17.4%)

$690,000 + $257,000

$947,000

2020

$9,306 (+12.0%)

$576,000 + $270,000

$846,000

2019

$8,309 (+1.5%)

$423,000 + $289,000

$712,000

2018

$8,189 (+0.5%)

$385,000 + $289,000

$674,000

2017

$8,147 (+7.9%)

$353,000 + $289,000

$642,000

2016

$7,549 (+9.6%)

$314,000 + $287,000

$601,000

2015

$6,889 (+0.6%)

$286,000 + $248,000

$534,000

2014

$6,845 (+1.3%)

$246,000 + $261,000

$507,000

2013

$6,758 (+0.8%)

$246,000 + $261,000

$507,000

2012

$6,702 (+5.7%)

$212,000 + $290,000

$502,000

2011

$6,342 (+4.1%)

$200,000 + $279,000

$479,000

2010

$6,092 (+2.9%)

$200,000 + $301,000

$501,000

2009

$5,921

$204,000 + $294,000

$498,000

Tax history for 21 Ridge Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,026 (−1.0%)

$545,000 + $423,000

$968,000

2024

$11,141 (+0.8%)

$722,000 + $333,000

$1,055,000

2023

$11,049 (+18.3%)

$681,000 + $302,000

$983,000

2022

$9,340 (−14.5%)

$623,000 + $185,000

$808,000

2021

$10,928 (+17.4%)

$690,000 + $257,000

$947,000

2020

$9,306 (+12.0%)

$576,000 + $270,000

$846,000

2019

$8,309 (+1.5%)

$423,000 + $289,000

$712,000

2018

$8,189 (+0.5%)

$385,000 + $289,000

$674,000

2017

$8,147 (+7.9%)

$353,000 + $289,000

$642,000

2016

$7,549 (+9.6%)

$314,000 + $287,000

$601,000

2015

$6,889 (+0.6%)

$286,000 + $248,000

$534,000

2014

$6,845 (+1.3%)

$246,000 + $261,000

$507,000

2013

$6,758 (+0.8%)

$246,000 + $261,000

$507,000

2012

$6,702 (+5.7%)

$212,000 + $290,000

$502,000

2011

$6,342 (+4.1%)

$200,000 + $279,000

$479,000

2010

$6,092 (+2.9%)

$200,000 + $301,000

$501,000

2009

$5,921

$204,000 + $294,000

$498,000

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

Public record

Beds

Baths

2.5

Stories

Lot width

—

Lot depth

—

Lot size

3,485 Sq. Ft.

Year renovated

1910

Sq. Ft.

1,877

Year built

1910

Style

Single Family Residential

County

Middlesex County

APN

2702834S

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 29, 2026.

Property details

Parking

Parking Information
Has Garage
Has Open Parking
# of Garage Spaces: 1
# of Covered Spaces: 1
Parking Spaces: 2
Parking Features: Detached, Off Street, Paved

Interior

Bathroom Information
# of Bathrooms (Full): 1
# of Bathrooms (Half): 1

Basement Information
Basement: Unfinished

Interior Features
# of Rooms (Total): 8
Window Features: Insulated Windows
Flooring: Tile, Carpet, Hardwood

Exterior

Building Information
Building Area (Total): 1,949
Foundation Details: Concrete Perimeter
Construction Materials: Frame
Year Built Source: Public Records
Year Built Details: Actual
Color: Tan

Exterior Features
Roof: Shingle
Exterior Features: Professional Landscaping

Property Information
PropertySubType: Single Family Residence

Lot Information
Lot Size (Acres): 0.08
Lot Features: Corner Lot
Road Frontage Type: Public

Financial

Tax Information
Tax Annual Amount: $9,306
Tax Year: 2020

Utilities

Utility Information
Sewer: Public Sewer
Water Source: Public
Electric: 200+ Amp Service

Heating & Cooling
Has Heating
Has Cooling
Heating: Central, Natural Gas
Cooling: Central Air

Location

Location Information
Directions: Belmont Street to Ridge Road
UnparsedAddress: 21 Ridge Rd., Belmont MA 02478

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Park, Walk/Jog Trails

Public facts

Beds: 4
Baths: 2.5
Sq. Ft.: 1,877
Stories: 2.0
Lot Size: 3,485 square feet
Style: Single Family Residential
Year Built: 1910
Year Renovated: 1910
County: Middlesex County
APN: 2702834S

Home facts updated by county records on Jul 29, 2026

Other

Miscellaneous Information
Heat Zones: 1

Listing Information
StandardStatus: Closed

Around this home

Schools

Butler Elementary School

Public K-3 • Assigned • 0.4mi

10/10

Belmont High School

Public 9-12 • Assigned • 1.5mi

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
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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

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

$1.15M – $1.39M

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New listings for sale in 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 Ridge Rd

Data from public records.

Address	Redfin Estimate
12 Ridge Road, Belmont, MA 3 Beds \| 3.5 Baths \| 2000 Sq. Ft.	$1,451,441
24 Ridge Road, Belmont, MA 3 Beds \| 1.5 Baths \| 1614 Sq. Ft.	$1,178,384

Address	Redfin Estimate
16 Ridge Road, Belmont, MA 4 Beds \| 3 Baths \| 3200 Sq. Ft.	$1,649,826
26 Ridge Road, Belmont, MA 4 Beds \| 2 Baths \| 1788 Sq. Ft.	$1,330,437

Address	Redfin Estimate
22 Ridge Road, Belmont, MA 4 Beds \| 1.5 Baths \| 1725 Sq. Ft.	$1,301,118
2830 Ridge Road, Belmont, MA 4 Beds \| 2 Baths \| 2222 Sq. Ft.	$1,103,142

Property information provided by MLS PIN when last listed in 2020. This data may not match . Learn more.

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