$546,139
$389K since last sold$7,000 since August
This home's estimate is 11.6% lower than the average sale price ($618K) of 6 comparable homes.
Claim this home to receive a free report every month with insights on the changing estimate.
SOLD
$546,139
3
bd•
1.5 ba
•
1,088
sq ft
21 Billow Rd, Old Lyme, CT 06371
About this home
Delightful 3brm ranch year round home in private beach assoc. Waterfront, sandy beach on long island sound access. Great rental history. Nice yard and enclosed front porch. Exceptional summer family community with benefits of private beach.
Single-familyProperty Type
1954Year Built
6,098 sq ftLot Size
$502Est. Price/Sq.Ft.
1 car garageParking
Source:Public Records
Redfin Estimate
Earn from this home
Sell
$512,706
Est. take-home
List your home with Redfin and save $5,461
Rent
$2,080/mo
Redfin rental estimate
List your home for rent
Market trends in 06371, CT
Last updated August 2026
Buyer's Market
Seller's Market
Balanced market
Sale-to-List Price
100.2%
0.9% MoM
Median sale price
$646K
$28K MoM
Avg. days on market
40d
10 days MoM
Recently sold homes
41
9 MoM
New listings for sale
Provided by Redfin
Property details
Around this home
Lifestyle
Provided by Walk Score and Local Logic
Sun exposure
In this area, properties receive around 9.1 hours in June and 4.6 hours in December, which is comparable to the U.S. average for solar exposure.
JuneDecember
Provided by Shadowmap
More real estate resources
- Counties
- Cities
- Popular Searches
| Suffolk County homes for sale | |||
| New Haven County homes for sale | |||
| Norfolk County 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.