$2,290,400
FOR SALE

Apartment

Bedrooms: 4Bathrooms: 4
2025 Taxes: $10,608

1 Dumfounder Island
Gananoque, ON K7G 2V4 | 05 - Gananoque | Leeds and Grenville

Nothing quite prepares you for that first quiet moment, walking down to the dock as the early morning sun begins to rise, its warmth gently breaking through the cool air. The day awakens slowly here. Loons call to one another across the water, and the soft rhythm of waves brushing against granite shoreline and towering trees sets a pace all its own. Life in the Thousand Islands isn't for everyone. It's for those who truly understand the value of natural beauty-the ever-changing sky, the brilliance of a clear summer day, and sunsets that feel almost unreal. It's for those who cherish evening boat rides, refreshing morning swims, laughter shared around a picnic table, and the simple joy of a homemade meal outdoors. Fishing, water sports, and moments that become lifelong memories-this is where they happen. For those who appreciate it, this place doesn't just impress-it stays with you. Dumfounder Island is one of the area's true hidden gems. Located less than ten minutes from the marina on just over 9 acres, you can leave the mainland behind and arrive at your private dock in minutes. The existing cottages are captivating in their simplicity, modest, authentic, and perfectly positioned to take in everything the island offers. There is space here. Space to explore, to expand, or simply to preserve what has been loved for generations. Whether you envision building more or keeping it just as it is, this island offers something increasingly rare: a sense of permanence, of legacy. This is more than a property-it's a place your family returns to, year after year. Come experience a sunrise. Stay for a sunset. ***There are four outbuildings and one pump house. The main cottage has a Living Room with a fireplace, a kitchen,2 piece washroom, Bedroom. The Second has a Bedroom, a 3-piece bath, and a sitting area; the third has an open Bedroom with a woodstove and a 3-piece bath. The fourth has a toilet and sink and is currently used for storage.
Extras
Primary Bedroom - Main Floor, Water Heater
Share
Listed By SOTHEBY'S INTERNATIONAL REALTY CANADA, Brokerage
Data Provided By Toronto Regional Real Estate Board
MLS® Listing Number X13015862
Last Updated Apr 18, 2026
Property Summary
Property Type Other

More like this:
PIN 442550275
Legal Description DUMB FOUNDER ISLAND PL 120 IN ST. LAWRENCE RIVER IN FRONT OF THE TWP OF LEEDS; LEEDS/THOUSAND ISLANDS
Possession Date TBD but can facilitate quickly
Taxes (2025) $10,608
Directions/Cross Streets St. Lawrence Canadian Channel
Neighbourhood 05 - Gananoque
Area Leeds and Grenville
Price History

Interested in obtaining the full price history for this property?
Contact us!Contact us! Our real estate professionals would be happy to provide a complete listing history with historical sold prices and dates.

Detailed Information
Fronting On South
Waterfront Y
Bedrooms 4
Bathrooms 4
Exterior Wood
Air Conditioning None
Garage Type None
Heat Source Wood
Sewers Septic

The information contained on this site is based in whole or in part on information that is provided under copyright by the Toronto Regional Real Estate Board (TRREB) or by members of The Canadian Real Estate Association (CREA), who are responsible for its accuracy. TRREB and CREA reproduce and distribute this information as a service for their members and assume no responsibility for its accuracy. All information displayed is believed to be accurate but is not guaranteed and should be independently verified. No warranties or representations of any kind are made with respect to the accuracy of such information.
The information provided herein must only be used by consumers that have a bona fide interest in the purchase, sale, or lease of real estate and may not be used for any commercial purpose or any other purpose.

FREE ESTIMATES ARE COMING

Reserve Your Spot To Be Notified
or

Coming soon to select cities
in North America

(We'll never share your details)