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Florida Keys Waterfront Homes on the Bay / Gulf Side of the Island For Sale

Total Listings 263
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$22,500,000
Key Largo
Unplatted Lower K.l.   - MM: 92.00
8 Bed, 8 Baths, 8,949 SqFt Days Listed: 423
-10.00% ($2,500,000) 1 Price Change : Last Change 63 Days Ago
Single Family - Active - Waterfront Yes
Side of Island: Bay/Gulf - Dockage: Dock Privileges,Boat

Experience Absolute Paradise! A Legacy Florida Keys Estate offering ultimate privacy & tranquility. The Orchid Cove Estate spans 14.5 Acres offering 1,000 ft. of waterfront & Private Beaches accessed through a grand entrance surrounded by a breathtaking canopy of exotic trees. Award winning Botanical gardens surround the property featuring impeccably curated nature trails leading to the main house, a boathouse, guest villas, & beach cove. Main residence rises 10 ft above the ground level, entered through a footbridge surrounded by coral rock waterfalls & koi ponds. Expansive water views, Library, Theater, Spa & Wellness room, Elevator & Chefs kitchen, private boat dockage,10+ car garage, catering facilities, generator & more. Daily spectacular sunsets. Arrive by seaplane, boat, or car.

$25,000,000
Upper Matecumbe Key Islamorada
Russell Estates   - MM: 83.20
7 Bed, 7 Baths, 6,935 SqFt Days Listed: 104
Single Family - Active - Waterfront Yes
Side of Island: Bay/Gulf - Dockage: Boat Lift,Basin,Boat

Welcome to Serenity Cay, an exquisite Balinese-inspired estate where tranquility and luxury meet the endless beauty on the Florida Bay. A true masterpiece of engineering and design, this sprawling waterfront residence on nearly 4 acres offers an unparalleled blend of tropical elegance, sophisticated craftsmanship, and modern luxury. An expansive infinity-edge pool blends seamlessly into the sparkling waters of the bay while lush gardens create a serene oasis. The homes architecture showcases graceful, custom finishes and rich hardwoods, all hallmarks designs that evoke the spirit of the Islands. Spanning over 6,900 square feet, the interior is a seamless fusion of open-concept living spaces and private retreats. Soaring vaulted ceilings and vast windows invite abundant natural light and spectacular views of the bay, creating an indoor-outdoor flow. The primary suite serves as your personal sanctuary, complete with private terrace, spa-inspired bathroom, and walk-in closets fit for a connoisseur of fine living. Each guest has direct access to outdoor spaces and views. A bonus, versatile bunk room/media center sits just off the west wing of the home. The charming guest house is the perfect complement to the main home, nestled in its own secluded on site location this delightful addition exudes a warm, welcoming ambiance ideal for hosting guests, or as a private office or creative studio. This downtown Islamorada estate in an incomparable location; walking distance to shopping, dining, and local culture, also has appeal that extends to those with a passion for the great outdoors. Two protected docking basins and boat lift, sandy lounging beach, expansive outdoor lanai and outdoor kitchen offers the ideal space for entertaining or enjoying a quiet evening watching the sunset. Fly the seaplane in or land the helicopter. Premier boating access just moments away from the Intracoastal waterway and Ocean channels. Serenity Cay is not just a home, its an experience.

$35,000,000
Marathon
Crains Subdivision   - MM: 58.00
9 Bed, 9 Baths, 9,530 SqFt Days Listed: 64
Multi-Units - Active - Waterfront Yes
Side of Island: Bay/Gulf - Dockage: Boat Lift,Basin,Boat

Zephyr Cove; the extravagant aquatically inspired retreat that you deserve. Located on the breathtaking waterfront nestled along the Gulf and designed and built by DAsign Source. This stunning estate invites you to experience the perfect balance of luxury, tranquility, and adventure. With both fresh and saltwater elements woven into its design, every detail has been thoughtfully crafted. At the heart of the property lies a lazy river loop infinity pool, complete with bridges, swim-up pool bar in gazebo, spa with table, lap pool, beach-style entries, and waterfall grotto plus gas fire pit, putting green, and tropical gardens. From floating under the sun, entertaining guests, or enjoying a peaceful evening by the water, this home was manifested for unforgettable moments.Grand main residence vaunts an impressive private primary wing and elegant open spaces designed for comfort and entertainment. Indoor amenities include a temperature-controlled wine room, game room, home theater, fitness center, and conference room; endless ways to unwind and enjoy life. Two additional charming two-bedroom villas and a separate two-bedroom guest house are perched next door, perfect for hosting family and friends with style and privacy.Designed for the ultimate coastal lifestyle with outdoor kitchen and dining areas set against breathtaking Gulf views, ideal for entertaining or simply soaking in the beauty of your surroundings. Ample dockage and multiple boat lifts for your toys, located right between Vaca cut and Toms Harbor Cut for easy Ocean access. Expansive garages and storage spaces provide ample room for vehicles, boats, and all essentials. Whole-home 130kw generator in its own private structure, ensuring peace of mind no matter the season. This is where everyday life feels like youre being pampered at a lavish resort. Step into a world where the beauty of nature meets unparalleled craftsmanship and let the magic of the Gulf welcome you home. 15 min to private airport.

The information being provided by the Florida Keys MLS is exclusively for consumers' personal, non-commercial use, and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed accurate by the MLS. Data last updated on 04-30-2025.
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