luxury houses 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 land More than 200 feet of direct waterfront Three fully finished residential structures Hurricane-resistant concrete and glass construction Contemporary coastal architecture Expansive indoor and outdoor entertaining spaces Extraordinary privacy and seclusion Direct access to world-class boating and water recreation Uninterrupted panoramic Gulf views Private resort-style lifestyle experience Surrounded 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.

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!

Welcome to your dream escape in the Florida Keys. This 3-bedroom, 3-bath oceanfront townhome in the highly sought-after Bonefish Yacht Club offers the perfect blend of coastal and laid-back island living. Set within an intimate marina community of just 34 residences nestled among lush tropical landscaping, this home feels both private and resort-like and also conveys with a boat slip in Bonefish Marina (B-34), accommodating a boat up to 25 feet. Enter through the foyer and up to two levels of open living, with 1,769 sq. ft. thoughtfully oriented for comfort, water views, and easy entertaining. The chef's kitchen features generous cabinetry, ample counter space, and an inviting eat-in island that flows seamlessly into the main living area, where sliding glass doors open to a spacious waterfront balcony overlooking the Key Colony Channel--watch charter boats head out with your morning coffee and return as you relax with a sunset cocktail. The primary suite is a serene retreat with its own private balcony, walk-in closet, and ensuite bath, while two additional bedrooms offer flexible space for guests, family, or a home office, each with access to well-appointed baths. On the ground level, a private garage and generous storage provide the perfect place for fishing gear, paddleboards, and all your Keys lifestyle essentials. Residents enjoy a temperature-controlled pool, expansive sun deck, tiki lounge with wet bar, tennis and pickleball courts, and a private sandy beach. This is a rare opportunity to own a turnkey, single-family attached townhome with a boat slip in one of the Keys' most desirable waterfront communities where every day feels like a vacation. New roof in 2023.

Nicely renovated 2BD/2BA waterfront half-duplex in vibrant Key Colony Beach, offering impressive water views from both the front and back of the home. Stilted concrete construction, metal roof and impact windows make the insurances extremely affordable. Wake up to glowing sunrises over the water and wind down with color-soaked Keys sunsets from your private balconies perfect for morning coffee, sunset cocktails, and effortless indoor-outdoor living. A deep-water pier-style dock accommodates boats up to 40 ft giving you instant access to world-class fishing, diving, and boating. Designed for adventure and convenience, the property includes parking for up to 3 vehicles, 2 covered spaces beneath the home and an additional uncovered driveway space ideal for extra parking or a boat trailer. A dedicated tackle room keeps gear organized and ready for your next trip offshore. Everything you love about Key Colony Beach is within easy walking distance, Sunset Park for oceanfront strolls and nightly sunsets, the Key Colony Beach Golf Course, tennis and pickleball courts, the Cabana Club with oceanfront pool and beach access (membership-based), and the Key Colony Beach Marina. Restaurants, walking paths, and the island's friendly, laid-back atmosphere are all right at your doorstep. With 7-day rentals permitted, this property offers excellent vacation-rental potential in one of the most desirable waterfront, boating communities in the Middle Keys. A bright, breezy coastal escape and always a pleasure to show.

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 exceptional 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 porch 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 an 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 15k 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 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 Park 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.

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!

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!

Welcome to your waterfront retreat in the heart of Key Colony Beach. Perfectly positioned on a deep-water canal with 75' of concrete dockage, this spacious 6-Bed, 4-Bath residence offers the ideal blend of island living, boating convenience, and exceptional investment potential. Designed to comfortably accommodate family and guests, the property features a unique floor plan with a 4-Bedroom, 2-Bath main residence and an attached ground level 2-Bedroom, 2-Bath guest quarters, providing flexibility for multi-generational living, entertaining, or maximizing rental income. Soaring ceilings and abundant natural light enhance the open living area, while impact-rated windows and doors provide peace or mind. A highlight of the home is the expansive screened porch overlooking the sparkling pool and tranquil canal. Outside, the resort-style backyard is built for enjoying the Florida Keys lifestyle. Relax in the heated pool and spa, soak up the sun on multiple lounge areas, or dine outdoors while watching the boats cruise by. The expansive patio offers plenty of seating for gathering with family and friends, while the 75-foot concrete seawall accommodates boats up to approximately 35 feet. From your dock, you'll enjoy quick boating access to the Atlantic Ocean in just minutes, with nearby Vaca Cut providing convenient access to the Gulf. Additional features include a garage, ample storage, low-maintenance tropical landscaping, and plenty of room for everyone to enjoy. Located in the sought-after island community of Key Colony Beach, you're just moments from waterfront dining, golf, pickleball, walking paths, Sunset Park, marinas, and Middle Keys attractions. Whether you're searching for a luxury primary residence, second home, or an established investment property, this canal-front oasis checks every box.

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.

Experience Key Colony Point with sweeping ocean views and unforgettable sunsets from both levels of this beautifully updated end-unit oceanfront residence in Key Colony Beach— a true gem of the Florida Keys. With a coveted corner location, this residence is wrapped in extra windows and natural light, creating a bright, airy coastal atmosphere you'll feel the moment you walk in. The spacious primary suite is a private retreat, featuring an extended sitting area on the enclosed balcony with mesmerizing blue-water and sunset views, a custom-designed bath, and a generous walk-in closet. Two large guest bedrooms provide comfort and privacy for family and friends, making hosting effortless. At the heart of the home, the gourmet kitchen offers abundant cabinetry and stunning granite countertops, flowing seamlessly into the sun-filled living and dining areas. A wet bar and panoramic ocean backdrop set the stage for easy entertaining, sunset cocktails, or quiet mornings with the sound of the waves. Whether you're seeking a full-time island residence, a seasonal escape, or a strong vacation rental investment, this delivers. The impeccably maintained community of just 31 condos and townhomes offers resort-style amenities, including a large oceanfront pool with expansive sun decks, a fishing pier with postcard-worthy sunsets, grilling and private lounging areas, covered garage parking, bike and kayak storage, guest parking, shuffleboard, and tennis/pickleball courts. Perfectly located near marinas, dining, shopping, and local attractions, this light-filled end unit offers the best of oceanfront living—privacy, views, and the effortless Florida Keys lifestyle you've been waiting for. It is a licensed 7-day rental with rental history.

Join us for Brokers Open House today 4-6 pm! This stunning, fully renovated waterfront home in Key Colony Beach offers the ultimate Florida Keys lifestyle, combining high-end finishes with practical, top-tier enhancements for durability and comfort. Step into a bright, open-flow sanctuary anchored by wood-look tile flooring and crisp custom shiplap walls. The heart of the home is a culinary showpiece, featuring an expanded island with hand-selected quartzite countertops, a farmhouse sink, and an instant hot water system. The sunroom offers an elevated retreat with its tongue-and-groove ceiling, while the bathrooms have been transformed with sleek barn-door glass showers and designer finishes. Designed for the elite boater, the outdoor oasis features a 15,000 lb boat lift and a newly replaced dock (2026). The backyard is a private tropical resort, finished with limestone pavers, a composite raised deck, and a brand-new tiki hut. For the dedicated angler, the garage is thoughtfully equipped with a commercial-grade ice maker and a dedicated bait freezer, ensuring you are always ready for a day on the reef. Every inch of the property has been modernized, from the hurricane impact glass that frames every view to the all-new PVC sewer infrastructure installed in 2023. The saltwater pool is optimized for year-round perfection with a dedicated heater and chiller, while new landscaping and privacy palms create a secluded sanctuary. A circular paver driveway and an expanded outdoor storage closet provide the final touches of convenience to this masterpiece. Call today for your private tour! No sign on the property.

Lowest-Priced In-Ground Pool Home in Marathon with Weekly Rental Potential! Embrace the laid-back Florida Keys lifestyle in this charming tropical cottage, ideally located in the desirable Little Venice subdivision of Marathon. Offering 2 bedrooms, 2 bathrooms, and beautiful peek-a-boo ocean views, this bright and airy stilt home is perfectly designed for both relaxation and entertaining. The spacious deck provides the perfect setting for enjoying ocean breezes, morning coffee, or evening gatherings with family and friends. Inside, the open-concept living area features vaulted ceilings and abundant natural light, while the updated kitchen boasts stainless steel appliances, granite countertops, and ample cabinetry for effortless entertaining. Recent improvements include updated bathrooms, a new A/C system (2024), hot water heater (2026), and a durable metal roof (2013). Tastefully furnished with coastal-inspired décor, this home is being offered fully furnished, making it move-in or rental ready. Situated on a rare double corner lot, the property features a sparkling in-ground heated pool surrounded by tropical landscaping, along with covered parking, generous workshop/storage space below, and ample room for boat and trailer parking. An assumable low-cost flood insurance policy adds additional value and peace of mind.

Affordable Florida Keys Living with Weekly Rental Potential in the Heart of Marathon Whether you're searching for a full-time residence, a vacation retreat, or an income-producing investment property, this charming 3-bedroom, 2-bath Conch cottage offers exceptional value in today's market. This property blends classic Keys character with modern upgrades and desirable rental flexibility. Newly renovated the home is move-in ready and designed for easy island living. Interior features include quartz countertops, stainless steel appliances, impact-resistant windows, and energy-efficient mini-split A/C systems that help keep utility costs low. The low-maintenance lot provides ample parking and storage, making it ideal as a primary residence, second home, or vacation rental. Situated in a weekly rental area, this property offers excellent income potential while allowing owners to enjoy their own slice of paradise. Conveniently located just minutes from world-class boating, fishing, waterfront dining, shopping, and all the attractions that make the Florida Keys such a coveted destination, this Little Venice gem combines affordability, convenience, and investment opportunity. Don't miss this rare opportunity to own an affordable piece of the Florida Keys with the flexibility to enjoy it, rent it, or both. Schedule your private showing today!