$1,971,616
$22K since sold in July 2026$42K since August
This home's estimate is 29.4% higher than the average sale price ($1.52M) of 6 comparable homes.
Claim this home to receive a free report every month with insights on the changing estimate.
Off Market Jul 2026 for $1.9M
$1,971,616
Est. refi paymentEst. refi $12,525/mo
3
bd•
3.5 ba
•
2,779
sq ft
21 S Cottage Rd #78, Belmont, MA 02478
About this home
21 S Cottage Rd #78 is a 2,779 square foot condo with 3 bedrooms and 3.5 bathrooms. - it last sold on July 30, 2026 for $1,950,000. Based on Redfin's Belmont data, we estimate the home's value is $1,971,616.
CondoProperty Type
2010Year Built
$709Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
Earn from this home
Sell
$314,903
Est. take-home
List your home with Redfin and save $9,858
Refinance
$0
Est. cash available
Get cash now or lower your monthly rate
Rent
$4,252/mo
Redfin rental estimate
List your home for rent
Market trends in 02478, MA
Last updated August 2026
Buyer's Market
Seller's Market
Seller's market
Sale-to-List Price
102.4%
+0.0% MoM
Median sale price
$1.4M
$22K MoM
Avg. days on market
19d
1 days MoM
Recently sold homes
66
3 MoM
New listings for sale
Provided by Redfin
Property details
Around this home
Lifestyle
Provided by Walk Score and Local Logic
Sun exposure
Try the sun simulator tool to see how light moves across the property at different times of day and year.
Provided by Shadowmap
More real estate resources
- Neighborhoods
- Cities
- Zip Codes
- Minor Civil Divisions
- Popular Searches
| Belmont Hill homes for sale |
Find us
Subsidiaries
Affiliated Business
United States
CanadaCopyright: © 2026 Redfin. All rights reserved.
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.