SOLD JUL 30, 2026

Sold on Jul 2026

$1,950,000

•

3,839

sq ft

21 S Cottage Rd #78, Belmont, MA 02478

Track this home’s value and nearby sales activity

About this home

Rarely available “Belmont” Style End Unit with ELEVATOR! Move right in & enjoy this amazing unit at the Woodlands at Belmont Hill!First floor primary bedroom includes hardwood flooring,spacious walk-in closets with custom wood closet built-ins,large bathroom with tile walk in shower,double vanity & heated floor.Large open living room with cathedral height ceilings & gas fireplace overlooking your deck with retractable awning&gas line for your grill! Enjoy the amazing evening sunsets!Dining Room opens to eat-in kitchen with wood cabinetry & gourmet appliances including Viking Wall ovens (Double),Viking Cook top,Sub Zero Fridge and walk in pantry.Second floor has a spacious landing, 2 large bedrooms with amazing closets & a full bathroom.Walk out lower level offers flexibility with gym space,family room,bedroom,kitchenette,laundry, full bathroom & tons of storage.Whole house sound system&nest thermostats. Attached 2 car garage. All located close to Cambridge and Boston & other mj routes.

TownhomeProperty Type

2010Year Built

$508Price/Sq.Ft.

$1,095/moHOA Dues

2 garage spacesParking

Listed by Christine Pomer • Coldwell Banker Realty - Lexington

Listed by • Coldwell Banker Realty - Lexington

Bought with Zack Harwood Real Estate Group • Berkshire Hathaway HomeServices Warren Residential

Redfin checked: 2 minutes ago

•Source:MLS PIN #73535314

Redfin Estimate

$2,011,321

$61K since sold in July 2026$4,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 35.8% higher than the average sale price ($1.48M) of 6 comparable homes.

SOLD AUG 26, 2026
$1,800,000
A
4 beds3.5 baths3,623 sq ft
65 S Cottage Rd #119, Belmont, MA 02478
SOLD JUN 30, 2026
$1,789,000
B
3 beds3.5 baths2,815 sq ft
48 Summit Rd #9, Belmont, MA 02478
SOLD JUL 17, 2026
$965,000
C
3 beds2.5 baths1,890 sq ft
11 Hersom St #2, Watertown, MA 02472
SOLD JUL 16, 2026
$1,135,000
D
3 beds2.5 baths1,887 sq ft
63 Wilson Ave #63, Watertown, MA 02472
SOLD SEP 15, 2025
$1,700,000
E
3 beds2.5 baths3,103 sq ft
3 Stables Way #3, Belmont, MA 02478
SOLD AUG 18, 2026
$1,500,000
F
4 beds3.5 baths2,661 sq ft
23 Trowbridge St #23, Belmont, MA 02478

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

Market trends in 02478, MA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.3%

0.4% MoM

Median sale price

$1.4M

$31K MoM

Avg. days on market

17d

1 days MoM

Recently sold homes

14 MoM

New listings for sale

3D & VIDEO TOUR
$1,995,000
4 beds3.5 baths2,756 sq ft
128 Watson Rd, Belmont, MA 02478
$879,000
2 beds1 bath1,130 sq ft
114 Payson Rd #2, Belmont, MA 02478
3D WALKTHROUGH
$879,000
2 beds1 bath1,530 sq ft
112 Payson #1, Belmont, MA 02478
$929,900
3 beds2.5 baths1,845 sq ft
81 Grant Ave #81, Belmont, MA 02478
See all

Provided by Redfin

Homeowner tools

View owner dashboard

Track your estimate and nearby sale activity

Edit home facts

Review property details and add renovations

Manage photos

Update home photos or make them private

Rental estimate

Est. $4,377 per month, based on comparable rentals

Sale and tax history for 21 S Cottage Rd #78

Sale History
Tax History

Date

Event

Price

MLS PIN #73535314

Jul 30, 2026

Sold

$1,950,000

$508/sq ft

Jun 26, 2026

Pending

—

Jun 25, 2026

Price Changed

$1,998,000

$520/sq ft

Jun 12, 2026

Listed

$2,099,000

$547/sq ft

MLS PIN #71157621

Sep 23, 2011

Sold

$1,125,000

$293/sq ft

Mar 11, 2011

Contingent

—

Jan 14, 2011

Price Changed

$1,125,000

$293/sq ft

Jan 14, 2011

Relisted

—

Nov 29, 2010

Contingent

—

Nov 1, 2010

Listed

$985,000

$257/sq ft

An end unit flooded with natural lights. This gracious townhome, The Belmont, offers a stunning, open floorplan with combination kitchen/family room, fireplaced living room, and first-floor master suite with double sinks, walk-in shower. Second floor loft and 2 additional bedrooms complete this plan. A walk-out basement and tremendous attic space. Generous covered front porch. Optional elevator Surrounded by 100 acres of conservation land, yet just 8 miles from Boston. Available July 2011.

Year

Property tax

Land + Additions

Assessment*

2025

$21,003 (+16.1%)

$1,844,000

2024

$18,089 (+9.3%)

$1,713,000

2023

$16,545 (−0.7%)

$1,472,000

2022

$16,658 (+3.0%)

$1,441,000

2021

$16,168 (+7.5%)

$1,401,000

2020

$15,037 (−5.7%)

$1,367,000

2019

$15,941 (+1.3%)

$1,366,000

2018

$15,734 (−8.7%)

$1,295,000

2017

$17,233 (−4.1%)

$1,358,000

2016

$17,961 (−8.9%)

$1,430,000

2015

$19,724 (−1.1%)

$1,529,000

2014

$19,940 (+9.6%)

$1,477,000

2013

$18,195

$1,365,000

2012

Public record

Beds

Baths

3.5

Stories

Lot width

—

Lot depth

—

Lot size

—

Year renovated

—

Sq. Ft.

2,779

Year built

2010

Style

Condo/Co-op

County

Middlesex County

APN

4826298

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 16, 2026.

Property details

Parking

Parking Information
Has Garage
# of Garage Spaces: 2
# of Covered Spaces: 2
Open Parking Spaces: 2
Parking Spaces: 4
AttachedGarageYN: Yes
Parking Features: Attached

Interior

Master Bedroom Information
Area: 143
Length: 13
Width: 11
Level: First
Features: Closet,Closet/Cabinets - Custom Built,Flooring - Hardwood

Bedroom #2 Information
Area: 260
Length: 20
Width: 13
Level: Second
Features: Closet,Closet/Cabinets - Custom Built

Bedroom #3 Information
Area: 238
Length: 17
Width: 14
Level: Second
Features: Closet,Flooring - Hardwood

Bedroom #4 Information
Area: 238
Length: 17
Width: 14
Level: Basement
Features: Flooring - Wall to Wall Carpet

Bathroom Information
# of Bathrooms (Full): 3
# of Bathrooms (Half): 1
Master Bathroom Features: Yes

Bathroom #1 Information
Area: 88
Length: 8
Width: 11
Level: First
Features: Bathroom - Full,Bathroom - Tiled With Shower Stall

Bathroom #2 Information
Area: 99
Length: 11
Width: 9
Level: Second
Features: Bathroom - Full,Bathroom - Tiled With Tub & Shower

Bathroom #3 Information
Level: Basement
Features: Bathroom - Full,Bathroom - Tiled With Shower Stall

Living Room Information
Area: 551
Length: 19
Width: 29
Level: First
Features: Ceiling Fan(s),Flooring - Hardwood

Family Room Information
Area: 459
Length: 17
Width: 27
Level: Basement
Features: Flooring - Hardwood

Dining Room Information
Level: First
Features: Flooring - Hardwood

Kitchen Information
Area: 168
Length: 14
Width: 12
Level: First
Features: Flooring - Hardwood

Basement Information
Basement: Y

Laundry Information
Laundry Features: In Basement, In Unit

Fireplace Information
Has Fireplace
# of Fireplaces (Total): 1

Appliances
Appliances: Oven, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer

Interior Features
# of Rooms (Total): 8
Window Features: Insulated Windows
Flooring: Tile, Hardwood
Interior Features: Bathroom - Half, Exercise Room, Bathroom, Elevator

Exterior

Building Information
Building Name: The Woodlands At Belmont Hill
Building Area (Total): 3,839
Construction Materials: Frame
StructureType: Townhouse
Stories (Total): 3
Year Built Source: Public Records
Year Built Details: Actual
Lead Paint: None

Exterior Features
Roof: Shingle
Patio And Porch Features: Deck - Vinyl
Exterior Features: Deck - Vinyl

Property Information
PropertySubType: Condominium
Above Grade Finished Area: 2836
Below Grade Finished Area: 1003
Entry Level: 1
Security Features: Security System

Financial

Tax Information
Tax Annual Amount: $21,003
Tax Year: 2026

Utilities

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

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

Location

HOA Information
Association Fee: $1,095
Association Fee Frequency: Monthly
Association Fee Includes: Insurance, Maintenance Structure, Road Maintenance, Snow Removal, Trash, Reserve Funds

School Information
Elementary School: Winnbrook
Middle Or Junior School: Belmont Middle
High School: Belmont High

Location Information
Directions: McLean St Right on Central Ave Right on S Cottage Rd.
UnparsedAddress: 21 S Cottage Road # 78, Belmont MA 02478

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Pool, Tennis Court(s), Park, Medical Facility, Bike Path, Highway Access, House of Worship, Private School, Public School, T-Station, University
Pets Allowed: Yes w/ Restrictions

Public facts

Beds: 3
Baths: 3.5
Sq. Ft.: 2,779
Stories: 2.0
Lot Size: —
Style: Condo/Co-op
Year Built: 2010
Year Renovated: —
County: Middlesex County
APN: 4826298

Home facts updated by county records on Jul 16, 2026

Other

Miscellaneous Information
Heat Zones: 2

Listing Information
StandardStatus: Closed

Around this home

Schools

Roger Wellington Elementary School

Public PreK-3 • Assigned • 1.2mi

8/10

Belmont High School

Public 9-12 • Assigned • 1.5mi

10/10

Provided by GreatSchools

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
153 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

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

85/ 100

Very good sunlight

Sunscore

This home receives average direct sun exposure in the zip code. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.9 hrs

5.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.91M – $2.31M

Reach more buyers when you sell with Redfin. Plus, you'll save $20,113 in fees.

Nearby similar homes

$1,575,000

4 beds3.5 baths3,400 sq ft

128 Carey Ave #128, Watertown, MA 02472

$869,900

3 beds1.5 baths1,873 sq ft

97 Melendy Ave #97, Watertown, MA 02472

$1,099,000

4 beds2 baths2,209 sq ft

349 Linwood Ave #2, Newton, MA 02460

$635,000

2 beds1.5 baths1,156 sq ft

40 Myrtle St #3, Waltham, MA 02453

3D WALKTHROUGH

$1,389,000

3 beds2.5 baths4,327 sq ft

10 Gale St #1, Waltham, MA 02453

3D WALKTHROUGH

$525,000

2 beds1 bath1,231 sq ft

84 Duff St #84, Watertown, MA 02472

New listings for sale in 02478

3D & VIDEO TOUR

$1,995,000

4 beds3.5 baths2,756 sq ft

128 Watson Rd, Belmont, MA 02478

$879,000

2 beds1 bath1,130 sq ft

114 Payson Rd #2, Belmont, MA 02478

3D WALKTHROUGH

$879,000

2 beds1 bath1,530 sq ft

112 Payson #1, Belmont, MA 02478

$929,900

3 beds2.5 baths1,845 sq ft

81 Grant Ave #81, Belmont, MA 02478

Home values near 21 S Cottage Rd #78

Data from public records.

Address	Redfin Estimate
14 South Cottage Rd, Belmont, MA 2 Beds \| 3.5 Baths \| 2995 Sq. Ft.	$1,570,129
10 South Cottage Rd, Belmont, MA 3 Beds \| 2.5 Baths \| 2779 Sq. Ft.	$1,635,646

Address	Redfin Estimate
12 South Cottage Rd Apartment 72, Belmont, MA 2 Beds \| 2.5 Baths \| 2751 Sq. Ft.	$1,677,914
15 South Cottage Rd Apartment 75, Belmont, MA 3 Beds \| 2.5 Baths \| 2648 Sq. Ft.	$1,609,900

Address	Redfin Estimate
16 South Cottage Rd, Belmont, MA 3 Beds \| 3.5 Baths \| 3550 Sq. Ft.	$1,802,346
17 South Cottage Rd Apartment 76, Belmont, MA 2 Beds \| 2.5 Baths \| 2143 Sq. Ft.	$1,393,713

Property information provided by MLS PIN when last listed in 2026. This data may not match . Learn more.

More real estate resources

Neighborhoods
Cities
Zip Codes
Minor Civil Divisions
Popular Searches

Belmont Hill 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

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

Is this your home?

About this home

Redfin Estimate

Market trends in 02478, MA

Homeowner tools

Sale and tax history for 21 S Cottage Rd #78

Public record

Property details

Around this home

Schools

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 02478

Home values near 21 S Cottage Rd #78

More real estate resources