luxury real estate for sale Duck Key, United States

Enter the bougainvillea-lined gates of Casa Feliz, a private oceanfront retreat on Grassy Key with expansive water views, white sand beach, and a true resort-style experience in the Florida Keys. An exceptional investment opportunity, Casa Feliz is a strong producing vacation rental with rental history and future bookings already in place. Set on over 24,000 square feet of lush grounds with mature landscaping, fruit trees, fresh herbs, and .29 acres of bay bottom, this exceptional estate is designed for both relaxation and entertaining. A 148-foot observation dock invites kayaking, paddleboarding, fishing, and endless enjoyment of marine life, while the unique orientation captures both breathtaking sunrise and sunset views over the water, a rare and coveted feature in the Keys. Outdoor living is elevated with a resort-style saltwater pool featuring cascading waterfalls, spillover spa, and fully equipped poolside cabana complete with wet bar, refrigerator, ice maker, and cooking area. A fire table and beachside fire pit create the ultimate setting for entertaining or unwinding beneath the stars. Completely renovated down to the studs in 2022, the three-story residence was thoughtfully redesigned to maximize sweeping ocean views from nearly every room. Offering four custom bedroom suites, each with private en-suite bath, the home comfortably accommodates guests in luxury. The top-floor penthouse suite features a private balcony, 180-degree ocean views, custom 96-inch circular bed, and kitchenette with coffee station. Expansive accordion impact glass doors seamlessly blend indoor and outdoor living throughout. The gourmet kitchen showcases Café appliances, induction cooktop, quartz countertops, mosaic tile backsplash, wine cooler, glass shelving, and multiple dining areas ideal for hosting. Additional highlights include a movie theater, library loft, Control4 smart technology, custom millwork, local artist mural, and more. Discover why Grassy Key is the place to be.

Positioned along one of the most secluded and protected stretches of the Gulf of America, this extraordinary waterfront estate represents a rare combination of modern coastal architecture, complete privacy, and unparalleled natural beauty.Set across more than three private acres, the property enjoys over 200 feet of direct Gulf frontage, surrounded by pristine shoreline, tidal lagoons, crystal-clear waters, and a thriving marine ecosystem, creating a level of exclusivity and tranquility rarely found in today’s luxury real estate market.Completed in 2025 by the renowned Alderuccio Corporation, the estate was envisioned as a fully private waterfront resort, designed to deliver exceptional comfort, structural resilience, and timeless architectural appeal.Constructed entirely of reinforced concrete and impact-resistant glass, the residence offers outstanding durability, security, and performance while maintaining a sophisticated contemporary aesthetic.Encompassing approximately 10,000 square feet of finished living space distributed across three distinct residential structures, the estate has been thoughtfully designed to accommodate family, guests, and staff while preserving privacy and seamless functionality.Expansive walls of glass frame breathtaking Gulf views and create an effortless indoor-outdoor lifestyle, allowing every living space to embrace the spectacular sunsets and coastal beauty that define the Florida Keys.Highlights include:Over 3 private acres of Gulf-front landMore than 200 feet of direct waterfrontThree fully finished residential structuresHurricane-resistant concrete and glass constructionContemporary coastal architectureExpansive indoor and outdoor entertaining spacesExtraordinary privacy and seclusionDirect access to world-class boating and water recreationUninterrupted panoramic Gulf viewsPrivate resort-style lifestyle experienceSurrounded by untouched natural beauty and some of Florida’s most remarkable coastal landscapes, this exceptional estate offers a rare opportunity to own a true waterfront legacy property in the Florida Keys.Combining architectural excellence, absolute privacy, and a spectacular Gulf-front setting, this is a trophy estate created for the most discerning luxury buyers.Contact us for confidential information or to arrange a private presentation of this extraordinary Gulf-front estate.

Zephyr Cove; the extravagant, aquatically inspired retreat that you deserve. Located on the breathtaking waterfront nestled along the Gulf and was designed and built by D’Asign 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, a swim-up pool bar with a gazebo, a spa with a table, a lap pool, beach-style entries, and a waterfall grotto plus a gas fire pit, and putting green. Whether you’re 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 both comfort and entertainment. Indoor amenities include a temperature-controlled wine room, game room, home theater, fitness center, and conference room, offering 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 Tom’s Harbor Cut for easy Ocean access. Tropical gardens enhance the natural beauty of this property. Expansive garages and storage spaces provide ample room for vehicles, boats, and all of your coastal 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 you’re 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.

This stunning oceanfront end-unit townhome in the exclusive Bonefish Yacht Club offers the perfect blend of luxury living and resort-style amenities in the heart of the Florida Keys. Nestled within a private 34-residence community set across more than four acres of beautifully maintained tropical grounds, the property captures the feel of a secluded oceanside retreat. This residence conveys with a 40' legal liveaboard boat slip, providing deep-water dockage and immediate ocean access--an exceptional feature for serious boaters. Inside, the home offers 1,751 sq. ft. of light-filled living space featuring a gourmet chef's kitchen with stainless steel appliances, a dedicated dining area, and an open-concept living room that flows seamlessly to a waterside balcony overlooking the marina--perfect for alfresco dining and entertaining. The spacious primary suite features a private waterfront balcony, walk-in closet, and a beautifully appointed ensuite bath. The guest suite also enjoys its own balcony, a full bath, and generous closet space. The ground level includes a private garage and storage area, ideal for a vehicle, fishing equipment, and water toys--perfect for the avid angler. Bonefish Yacht Club residents enjoy exceptional amenities including a heated and chilled waterfront pool with expansive sun deck, a tiki lounge gathering area with wet bar and seating, tennis/pickleball courts, and a private community beach. Offering breathtaking water views, deep-water dockage, and beautifully maintained resort amenities, this residence delivers a rare opportunity to enjoy luxury waterfront living with effortless access to world-class boating, fishing, and the best of the Florida Keys lifestyle.

Welcome to your dream escape in the Florida Keys--this beautifully updated 3-bedroom, 3-bath oceanfront end-unit townhome in the highly sought-after Bonefish Yacht Club delivers the ultimate blend of coastal elegance and laid-back island living. Tucked inside an intimate marina community of just 34 residences spread across lush tropical grounds, this property offers both privacy and a true resort-style feel. Step inside to 1,945 sq. ft. of bright, open living space designed for comfort and entertaining. The modern chef's kitchen features stainless steel appliances, sleek finishes, and ample space for gathering, flowing effortlessly into the dining and living areas. Sliding doors open to a spacious waterfront balcony overlooking the marina--perfect for morning coffee, sunset cocktails, or entertaining with ocean breezes. The primary suite is a serene retreat, complete with its own private balcony, a walk-in closet, and a fully updated ensuite bath. Two additional bedrooms offer flexibility for guests, family, or a home office, each paired with well-appointed bathrooms for comfort and privacy. On the ground level, enjoy the convenience of a private garage and generous storage space--ideal for keeping your fishing gear, paddleboards, and all your Keys lifestyle essentials ready to go. Residents of Bonefish Yacht Club enjoy an array of premium amenities, including a temperature-controlled pool, expansive sun deck, tiki lounge with wet bar, tennis and pickleball courts, and a private sandy beach. Whether you're boating, fishing, or simply soaking in the views, this is island living at its finest. This is a rare opportunity to own a turnkey, oceanfront home in one of the Keys' most desirable communities--where every day feels like a vacation. This unit is a fully licensed 7-day rental.

Enjoy calm mornings and serene evenings on the screened porch at your waterfront retreat on Long Key. Layton living will take you back to an Old Keys feel and this property is perfectly situated on a quiet canal with quick access to the open Ocean and access to the Bay via nearby Chanel 5 Bridge. This open floor plan home has 2 oversized bedrooms and 2 bathrooms as well as a garage and covered parking. Lots of storage and flex space as well!

Rare opportunity to own a legal duplex being sold as A Single Family Home in the heart of Key Colony Beach in the beautiful Florida Keys. Located just one street off the Atlantic Ocean, 340-350 E Ocean Drive offers exceptional space, boating access, and an amazing investment opportunity with flexibility at a competitive price designed to sell. With 5 bedrooms, 3 bathrooms, and over 2,900 sq ft of living space, this property provides the rare opportunity to own a large waterfront home while still benefiting from the layout of a legal duplex. Sold together as a single property, it offers incredible versatility for full-time living, vacation use, or income-producing investment. Boaters will appreciate 50 feet of dockage with dual docks, allowing space for multiple vessels. Buyer and buyers agent to verify all info

Welcome to your slice of paradise in the heart of the Florida Keys. This Conch-style home is tucked away on a wide, clear, deep-water canal just 5 minutes from the crystal blue Atlantic Ocean. Boaters and anglers alike, will love the 60 ft concrete dock with boat lift—ideal for easy ocean access and unforgettable adventures on the water. World-class fishing, diving, snorkeling, and marine wildlife encounters all begin at your dock. Entertain in island style on the decked pool area, huge tiki hut, and screened patio, perfect for relaxing or hosting. The interior boasts a huge, updated kitchen with tons of cabinetry, seamlessly flowing into an open living, dining, and kitchen area with views of the screened patio, Tiki Hut, and pool. Enjoy resort-like living on Key Colony Beach with access to incredible amenities: golf, marina, pickleball, tennis, horseshoes, bocce ball, basketball, playgrounds, and Sunset Oceanfront Park. Everything you need is within reach—restaurants, shopping, post office, police & building departments, and 15 streets to walk, jog or bike. No problem getting here, only 3 miles to Marathon's Airport, 53 miles to Key West International Airport, 108 miles to Miami International Airport, and 139 miles to Ft Lauderdale Airport. Whether you're seeking a full-time residence, vacation retreat, or investment property, this home captures the best of island living in one perfect package.

Escape to paradise in this spacious townhouse style condominium with stunning beach and ocean views, perfectly positioned at The Cay Condos in the heart of Key Colony Beach. Let the sights and sounds of the Atlantic set the tone for relaxed island living as gentle sea breezes and endless blue horizons become part of your everyday backdrop. Offering over 1,300 square feet of thoughtfully designed living space with two bedrooms, two and one half bathrooms, this residence provides ample room to entertain, unwind, and create unforgettable memories with family and friends. The open layout is ideal for gathering after a day on the water or enjoying quiet mornings with coffee overlooking the beach. The Cay is a well established, beachfront community featuring white sandy shoreline, newly refreshed pool completed last year, and on-site management. With a highly desirable 14 day minimum rental policy, this property presents excellent income potential and remains consistently rented throughout the season. The association is meticulously managed and well funded, plus has completed both the Milestone Inspection and SIRS Reserve Study, offering added confidence for long term ownership. Whether you are seeking a serene retirement retreat, a lock and leave vacation getaway, or a proven investment property, this beachside residence delivers the best of coastal living. Enjoy an unbeatable location close to dining, marinas, walking and biking paths, and all the amenities that make Key Colony Beach the true gem of the Florida Keys.

Welcome to your dream waterfront escape in the Florida Keys! This beautifully updated 3 bedroom, 2 bath home is nestled in an exclusive neighborhood and offers the perfect blend of luxury, comfort, and island charm. Boasting 142 feet of protected dockage on an open bay, it's a boater's paradise with direct access to world-class fishing and diving. Enjoy stunning sunrises from this east-facing property. Soaring vaulted ceilings add to the airy, open feel of the home, while the convenience of an elevator makes access effortless. Step outside to your private coastal oasis featuring a large pool and a spacious downstairs entertaining areaideal for gatherings, grilling, or relaxing after a day on the water. This is more than just a homeit's a true Florida Keys lifestyle!

This waterfront residence in Key Colony Beach offers the perfect blend of refined comfort, thoughtful design, and effortless island living. Lovingly owned, gently used, and never rented, the home reflects true pride of ownership throughout. An elevator, updated kitchen, and custom baths set the stage, while soaring wood ceilings and an open-concept kitchen, dining, and living area create a light-filled space that flows seamlessly through stackable sliders to a spacious screened porchâ€''ideal for entertaining or unwinding in the coastal breeze. The generous primary suite is a private retreat with porch access and a skylit spa-style bath featuring a jetted tub, walk-in tiled shower, and dual vanities. The lower level is designed for true indoor-outdoor living, featuring a custom, inground swimming pool surrounded by elegant marble decking, along with expansive covered and uncovered paved patios. Mature tropical landscaping enhances privacy, while ample covered and uncovered parking adds everyday convenience. Boaters will love the 37.5-foot dock with boat lift, located on a wide, deep canal with quick, easy access, just minutes to both the open ocean and the Gulf via Vaca Cut. A permitted third full bathroom on the lower level sits next to a large, air-conditioned storage area with sliders that open directly to the patio and dock, making it ideal as an angler's room for fishing gear and water toys. Key Colony Beach is one of the Florida Keys' most desirable island communities, known for its wide, walkable streets, city-maintained infrastructure, and relaxed coastal charm. Residents enjoy access to marinas, a nine-hole golf course, tennis and pickleball courts, playgrounds, dining, and waterfront sunset parksâ€''all just steps or a short bike ride away. Perfectly positioned in the Middle Keys, Key Colony Beach offers a rare combination of small-town island living, world-class boating, and easy access to Marathon's shopping, dining, and local airport.

You Deserve this East Facing, Updated 3 Bedroom Island Home! Here you will discover how coastal comfort meets effortless Keys living in the heart of the fabulous Florida Keys. Step into the bright, open-concept living, dining, and kitchen areas designed for both entertaining, relaxing and making tropical memories. The natural light pours in the wide open space and flows seamlessly through double sliding doors and continues onto a spacious deck and private dock with 10k lb lift. All with serene views of a deep, wide canal. This is the perfect, private space for morning coffee, an adult beverage and taking your time to simple unwind under the palms. A definite retreat for the boating enthusiasts and anglers this home can be your dream come true. Just five minutes from both the open ocean and the open Gulf. This is also ideal for divers, and snorkelers with the reef only a few miles off shore, and numerous excellent underwater treasures, like Sombrero Light and Coffins Patch. Paddle boarders, kayakers, and jet skiers will enjoy exploring the abundant marine life, birds, and natural beauty that make the blue waters of the Keys so special. Perfectly situated in the Middle Keys, you're conveniently located halfway between Key Largo and Key West. Travel is easy with Marathon International Airport just 3 miles away, Key West International Airport 54 miles away, Miami Int'l Airport 108 miles away and 137 miles to the Ft Lauderdale Airport. Welcome to the charming and highly sought-after Key Colony Beach - known as the ''Gem of the Florida Keys'' walk or bike the entire city offering a unique island lifestyle. Plus access to the marina, pickleball, golf, tennis, bocce ball, cornhole, playgrounds, and 3 restaurants. Don't miss Sunset Park, where you can take in breathtaking sunsets, live concerts, and many community events year-round. This is more than a home, it is your gateway to island living in paradise. What's Your Hurry, Your Here!

Experience ultimate waterfront luxury living with this stunning 5-bedroom, 3-bath residence (versatile bonus den can be used as 5th bedroom), perfectly positioned on a tranquil, sheltered waterway in a tucked away neighborhood. Thoughtfully designed and impeccably furnished, this home showcases high-end finishes and designer dcor throughout, creating a sophisticated yet comfortable coastal retreat. A rare highlight of this property is the indoor swimming pool, allowing for year-round enjoyment in complete comfort and privacy. Outside, you'll find a tropical oasis backyard for relaxing or entertaining. Feel free to cast a fishing line off your private dockage with 30 ft of waterfront. With direct access to the Atlantic Ocean or Gulf of Mexico, this is a dream for boating and fishing enthusiasts. Enjoy paddle boards or kayaks in your own private lagoon. The spacious open concept living areas are ideal for entertaining. Each bedroom opens up to the indoor pool providing a relaxing sanctuary for family and guests alike. Whether you're seeking a full-time residence or a luxury vacation escape, this exceptional waterfront home combines resort-style amenities, impeccable design, and an unbeatable location for the perfect Keys lifestyle.

If you need more dockage than most half duplexes in Key Colony Beach, here it is. This property offers an impressive 42 feet of dockage with a concrete seawall and wooden step-down dock, ready for your big boat and all your water toys. Exceptionally maintained by the same family for over 40 years, this home shows true pride of ownership from the moment you enter the open-concept kitchen, dining and living area. A large impact slider and picture window fill the space with natural light and frame beautiful views of the 100 foot wide canal. These refreshing water views invite you onto the covered porch, ideal for entertaining, outdoor dining or simply relaxing and enjoying the island lifestyle. Boaters, anglers, divers and nature lovers will appreciate the brief 5 minute cruise to both the open ocean and the open gulf. The location also offers excellent proximity to major airports including 10 to 15 minutes to Marathon International, just over an hour to Key West International, 2 hours to Miami International and 2.5 hours to Fort Lauderdale International. Key Colony Beach is known as the gem of the Florida Keys and features a 15 street island layout perfect for biking along with pickleball, golf, a marina, three playgrounds, bocce ball, horseshoes, a post office, three restaurants and iconic Sunset Park. Paradise is waiting for you here and this island lifestyle can be yours.

Fantastic 6 Bedroom, 4 Bath 3,248 sq. ft. waterfront pool home in Key Colony Beach, an upscale coastal community of waterfront homes that allows weekly rentals and offers a plethora of amenities including gorgeous beaches, a beach club, golf, tennis, pickleball, restaurants, parks, shopping and more! World-class fishing and diving are just minutes from your 75' concrete dock on a 100' wide crystal clear canal offering quick ocean access. After a day on the water relax by your waterfront pool or take a bike ride to one of the great restaurants the island has to offer. The 2-story home is perfect for large families and guests with living areas on both floors and 2 Primary Suites. The home has been beautifully updated including new impact doors and windows and metal roof installed in 2023. The tropically landscaped yard offers lots of curb appeal and privacy. This home is zoned for duplex and with a few modifications can be turned into one. Please ask your agent for more details. Can be sold Turn Key!

Discover exceptional waterfront living in the heart of Key Colony Beach. This concrete constructed half duplex offers over 2,100 square feet with three bedrooms, three bathrooms inside and 37.5 feet of dockage. A highly desirable interior staircase welcomes you from the above flood first floor, seamlessly connecting both levels of the home. Downstairs is completely built above flood and features a one-bedroom, one-bathroom suite with an additional living area, ideal for guests or extended family. Step through sliding glass doors to a spacious wood deck and 37.5 feet of dockage. Enjoy the ocean breeze and shade under the lush buttonwood tree. Upstairs, enjoy open-concept living with a bright, airy kitchen, dining, and living area designed for effortless entertaining. The primary suite boasts a recently renovated bathroom with step-in tiled shower, quartz topped double vanity and tiled flooring. Nearby, a second guest bedroom offers its own ensuite for added comfort and privacy. Recent updates include a newer AC, a 2018 standing seam metal roof, and termite tenting with a transferable warranty, providing peace of mind for years to come. With its downstairs living, expansive square footage, and thoughtfully designed layout, this property presents a unique opportunity to own a well-cared-for waterfront residence in one of the most desirable areas of the Florida Keys. Key Colony Beach welcomes primary and seasonal guests with the 9-hole par 3 golf course, tennis and pickle ball courts, Sunset Park, City Hall, police department, multiple restaurants, boat ramp and marina. Enjoy the island lifestyle with amenities galore!

Experience sweeping ocean views and breathtaking sunsets, from both floors of living in this beautifully updated oceanfront residence in Key Colony Beach—the gem of the Florida Keys. The spacious primary suite features an extended living area on the enclosed balcony with amazing blue water & sunset views, a custom bath, and a generous walk-in closet. Two large guest bedrooms offer comfort and privacy for family or visitors. The gourmet kitchen boasts abundant cabinetry, stunning granite countertops, and opens to a light-filled living and dining area complete with a wet bar and panoramic ocean vistas—perfect for entertaining. This home suits any lifestyle: a high-performing vacation rental, a seasonal retreat for snowbirds, or a full-time residence in a meticulously maintained community of just 31 condos and townhomes. Enjoy resort-style amenities including a large oceanfront pool surrounded by expansive sun decks, a fishing pier with breathtaking sunset views, grilling and private lounging areas, covered parking garage, bike and kayak storage, plus guest parking, shuffleboard, and tennis/pickleball courts. Ideally located near marinas, restaurants, shopping, and local attractions, your island dream awaits in paradise.