Location

Nearby schools

School ratings (A+ to F) from HJN community data.

Waldorf High School of Massachusetts Bay
9-12 · Special Program Emphasis
39 students · 5.7:1 student–teacher
0.2 mi
J. R. Lowell Elementary School
KG-5 · Regular · Watertown School District
422 students · 9.8:1 student–teacher
J. R. Lowell Elementary School school rating: A- 0.3 mi
Daniel Butler
KG-3 · Regular · Belmont School District
261 students · 12.0:1 student–teacher
Daniel Butler school rating: A+ 0.4 mi
Watertown Middle School
6-8 · Regular · Watertown School District
583 students · 10.8:1 student–teacher
Watertown Middle School school rating: B- 0.6 mi
Cunniff Elementary School
KG-5 · Regular · Watertown School District
320 students · 8.0:1 student–teacher
Cunniff Elementary School school rating: A 0.7 mi
Watertown High School
9-12 · Regular · Watertown School District
761 students · 11.1:1 student–teacher
Watertown High School school rating: B- 0.7 mi
Winthrop L Chenery Upper Elementary School
4-6 · Regular · Belmont School District
1,023 students · 13.8:1 student–teacher
Winthrop L Chenery Upper Elementary School school rating: A- 0.9 mi
Roger E Wellington
PK-3 · Regular · Belmont School District
426 students · 13.2:1 student–teacher
Roger E Wellington school rating: A 1.1 mi

Nearby places

Within 2 miles of this home: 38+ restaurants and cafés, 12 grocery stores, 38+ parks and green spaces, and 33+ transit stops.

Place data from OpenStreetMap.

Food & drink

Quebrada Baking Company
Orchard Street
0.2 mi
Joe's Variety Deli
Orchard Street
0.2 mi
ANI
0.2 mi
Ritcey East
American restaurant · Waverley Avenue
0.3 mi
Bake A Wish
Loomis Avenue
0.3 mi
Sweet Heart
Trapelo Road
0.4 mi
Art's Specialties

Flock cameras and license-plate readers near 21 Ridge Rd, Belmont

This home
Flock Safety reader
Rings at ½ mile and 1 mile. Basemap © OpenMapTiles © OpenStreetMap contributors.
Open the Belmont camera map

1 license-plate reader mapped within 1 mile of this home, identified as a Flock Safety device. None within ½ mile. Nearest: 0.9 mi northwest. Operator named in the data: Waltham Police Department.

Mapped devices by type and distance from this home
Device type	Within ½ mi	Within 1 mi
License-plate readers	0	1
of which Flock Safety	0	1

Community-reported via OpenStreetMap; may be incomplete. Data as of Oct 9, 2026. © OpenStreetMap contributors (ODbL)

About these devices

License-plate readers (ALPR) are fixed cameras that photograph passing vehicles and read their plates. Records are typically shared with the agency or association that operates the camera.

Flock Safety is a company whose plate-reader cameras are used by police departments, cities, HOAs and businesses. Its devices are usually solar-powered and pole-mounted.

The 02478 market

Homes for sale: 48
Median list price: $1,565,000

Similar homes nearby

See all in 02478

Sources for the nearby listings shown on this page

MLS Property Information Network (MLS PIN): The property listing data and information set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information are for the personal, non commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information set forth herein.
Listing information ©2026 MLS Property Information Network, Inc®. All Rights Reserved. Last Updated: 2026-10-08 07:05:00 UTC

Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.

No listing photos

21 Ridge Rd, Belmont MA 02478

4

Beds

2.5

Baths

1,877

Sqft

1910

Year built

Estimated value: $1,163,271

Range $1,118,041 – $1,208,501 · as of July 14, 2026

How this estimate has moved

ATTOM automated valuation model · 53 published estimates over 6.5 years · shaded band is the model's own published low-to-high range

$847,443 January 2020$1,163,271 July 2026

Highest reading $1,696,000 in September 2025; lowest $847,443 in January 2020. The vertical scale starts at the series' own low, not at zero — it is drawn to show movement, not absolute size.

Public records

4 beds
2.5 baths
1,877 sqft
3,653 sqft lot
Built 1910
Stories: 2
Use: RESIDENTIAL
APN BELM M:15 P:000143 S:

Estimate your monthly payment

Home price

Down payment (20%)

$232,654

Loan term

Interest rate (%)

Property tax (%/yr)

Home insurance ($/yr)

HOA ($/mo)

Estimated monthly payment

$7,626/mo

Principal & interest$6,443

Property tax$1,066

Home insurance$117

Loan amount $930,617. Estimate only — your actual rate and payment depend on credit, location, and lender.

Tax history

2025 roll

Land: $545,000
Structure: $423,000
Assessed total: $968,000
County market value: $1,198,995
Property tax billed: $11,026

Sale & deed history

December 9, 2020Arm's-length$840,000
July 31, 2014Arm's-length—
December 18, 2013Not an arm's-length transfer—
November 12, 2004Not an arm's-length transferCash$1
December 20, 1996Not an arm's-length transfer—

The 02478 market

Homes for sale: 48
Median list price: $1,565,000

Nearby schools

School ratings (A+ to F) from HJN community data.

Flock cameras and license-plate readers near 21 Ridge Rd, Belmont

1 license-plate reader mapped within 1 mile of this home, identified as a Flock Safety device. None within ½ mile. Nearest: 0.9 mi northwest. Operator named in the data: Waltham Police Department.

Mapped devices by type and distance from this home
Device type	Within ½ mi	Within 1 mi
License-plate readers	0	1
of which Flock Safety	0	1

About these devices

License-plate readers (ALPR) are fixed cameras that photograph passing vehicles and read their plates. Records are typically shared with the agency or association that operates the camera.

Flock Safety is a company whose plate-reader cameras are used by police departments, cities, HOAs and businesses. Its devices are usually solar-powered and pole-mounted.

Location

Nearby places

Within 2 miles of this home: 38+ restaurants and cafés, 12 grocery stores, 38+ parks and green spaces, and 33+ transit stops.

Place data from OpenStreetMap.

Food & drink

Quebrada Baking Company
Orchard Street
0.2 mi
Joe's Variety Deli
Orchard Street
0.2 mi
ANI
0.2 mi
Ritcey East
American restaurant · Waverley Avenue
0.3 mi
Bake A Wish
Loomis Avenue
0.3 mi
Sweet Heart
Trapelo Road
0.4 mi
Art's Specialties

Trapelo Road

0.4 mi

Dunkin

Church St

0.5 mi

Groceries

Star Market
Trapelo Road
0.6 mi
La Guanaquita Market
Main Street
1.0 mi
Super Vanak
1.2 mi
Stop & Shop
Watertown Street
1.2 mi
Roksana Market
Mount Auburn Street
1.4 mi
Seasonal Farm Stand
1.5 mi
Massis Bakery
Mount Auburn Street
1.5 mi
Arax Market
Mount Auburn Street
1.6 mi

Parks & recreation

Peqoussette Park
0.2 mi
Lowell Playground
0.3 mi
West Housing Project Playground
0.5 mi
Victory Field
0.5 mi
Whitney Hill Park
0.6 mi
Watertown Linear Park
0.7 mi
Beaver Brook Reservation
0.7 mi
Town Field
0.7 mi

Transit

Lexington St @ Belmont St
0.2 mi
Belmont St @ Lexington St
0.2 mi
Lexington St @ Burnham St
0.3 mi
Lexington St @ Beech St
0.3 mi
Trapelo Rd @ Bartlett Ave
0.3 mi
Trapelo Rd @ Walnut St
0.3 mi
Trapelo Rd @ Slade St
0.3 mi
Trapelo Rd opp Walnut St
0.3 mi

Sources for the nearby listings shown on this page

MLS Property Information Network (MLS PIN): The property listing data and information set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information are for the personal, non commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information set forth herein.
Listing information ©2026 MLS Property Information Network, Inc®. All Rights Reserved. Last Updated: 2026-10-08 07:05:00 UTC

Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.

Similar homes nearby

See all in 02478