St. Mary’s Island is a breathtaking 0.3-acre private sanctuary positioned in the heart of the Thousand Islands' most prestigious corridor. Known for its unparalleled views and exceptional maritime access, this developed island offers a rare combination of Gilded Age charm and modern structural reliability. Located along "Millionaires Row," the property provides a front-row seat to the majestic St. Lawrence Seaway, where international freighters glide past against the backdrop of the historic Boldt Castle.
Property Details
The residence is a meticulously maintained custom home built in 1996, designed to harmonize with the rugged beauty of the River.
Architecture: The 2,964-square-foot home features distinctive cedar cladding on both the exterior and interior, creating a warm, "river-cottage" aesthetic.
Interior: The open-concept layout is defined by soaring cathedral ceilings and gleaming hardwood floors throughout. The home includes four spacious bedrooms and two full bathrooms, including a primary master suite.
Panoramic Views: The structure was engineered to ensure that every room captures a 360-degree perspective of the surrounding turquoise waters, with direct, unobstructed sightlines toward Alexandria Bay and Heart Island.
Land and Water
St. Mary’s Island is a mariner's dream, specifically equipped for serious boating enthusiasts.
Dockage: The island features protected deep-water dockage specifically designed to accommodate large yachts and multiple pleasure craft simultaneously. The crystal-clear waters surrounding the island also provide an ideal environment for swimming and water sports.
Topography: The level 0.3-acre lot is easy to navigate, featuring wraparound decking and outdoor living spaces that extend the home's footprint directly to the water's edge.
Access and Utilities
Unlike many remote river properties, St. Mary’s Island is built for year-round reliability and convenience.
Utilities: The property is serviced by a permanent underwater electric cable, providing consistent power regardless of the season. The home also features modern septic and water filtration systems.
Connectivity: Located just minutes from the Alexandria Bay mainland and the Canadian border, the island remains highly accessible. For those traveling from afar, the property is a convenient short flight from New York City or a scenic drive through Upstate New York.
Lifestyle and Value
Life at St. Mary’s Island is defined by the unique culture of the Thousand Islands. From morning coffee overlooking the sunrise on the St. Lawrence to evening cocktails as the lights of Boldt Castle begin to twinkle, the property offers an immersive sensory experience. Whether utilized as a high-end seasonal retreat or a permanent residence, St. Mary’s Island represents a rare opportunity to own a piece of "River History" in a location that has attracted the world’s elite for over a century.
