luxury houses for sale Key Colony Beach, United States

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.

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.

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.

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!

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!

Experience the Florida Keys lifestyle on a double lot in Marathon's sought-after Little Venice. This 2 bed/2 bath waterfront retreat boasts open-water views, 100' of concrete dockage with a 20,000 lb boat lift, and a resort-style outdoor living area built for entertaining. The backyard features a pool(heated or chilled), hot tub, poolside cabana with sink and refrigerator, mature tropical landscaping, and expansive decks for soaking up sunsets or unwinding after a day on the water. Practical boating amenities include power, water, lighting, and a fish-cleaning station; RV hookups and ample parking accommodate guests and all your toys. Inside, cathedral ceilings create a bright, airy living space while every bedroom enjoys its own private bath for comfort and privacy. Notable updates and systems: newer metal roof, tankless water heater, large laundry/utility room, and abundant storage. Located in a weekly-rental zone, the property offers strong income potential as a primary home, vacation getaway, or investment. From open-water vistas to thoughtful outdoor spaces, this home captures everything the Keys have to offer.

Experience the confidence of solid construction in this 3-bedroom, 2.5-bath canal-front residence. Built with poured, reinforced concrete, this home was designed for strength, longevity, and peace of mind—an invaluable asset in a coastal environment. From the moment you arrive, the quality is unmistakable, offering the substantial, well-built feel discerning buyers seek. The open, light-filled floor plan flows seamlessly for everyday living and entertaining, anchored by a well-appointed kitchen featuring granite countertops, custom finishes, and durable hickory cabinetry chosen to stand the test of time. Custom tilework throughout adds warmth and character, while an elevator provides effortless access between levels. Additional highlights include a cozy fireplace, dedicated upstairs office space, and a flexible layout suited to a variety of lifestyles. Boaters will appreciate the excellent dockage and quick access to open water, including a 16,000-lb boat lift accommodating vessels up to approximately 35 feet, multiple docking options, davits, and a large dock box for easy gear storage. Outdoor living is front and center, with generous space for entertaining and ample room to create a private tropical oasis—there is plenty of space to add a pool. The oversized four-car garage provides abundant storage for vehicles, boats, and water toys, while a 10,000-gallon cistern with pump adds an extra layer of water security. Downstairs, a versatile enclosed area offers endless possibilities as a tackle room, workshop, storage area, or relaxation space. Framed by concrete walls on both sides with gated rear access, the property offers privacy and security while still embracing the easygoing Florida Keys lifestyle. Whether you're seeking a full-time waterfront residence, seasonal retreat, serious boater's haven, or a weekly vacation rental opportunity, this exceptionally well-built home delivers durability, functionality, and island living at its finest.

HUGE 4 Bed 4 Bath Concrete Home with pool and hot tub, and 75' of dockage on a deep and clear canal. Newer (2022) Custom Concrete home with just under 2100 square feet with 3 Master Suites! Split Floor Plan with 10' ceilings, a huge open space living area with 2 of the Master Suites having direct access to the back porch. 550 sq ft of covered porch upstairs with built in Grill and Sink. Top of the line Jenn-Air appliances and Quartz and Stone Counters throughout. Tile Floors and being sold completely turnkey! Successful Vacation Rental that grossed over $250K in 2024 and 2025. Metal Roof and Impact Sliders, Doors and Windows ensuring the cheapest insurances possible. Foam board exterior concrete block walls. Closed cell spray foam insulation first floor, Tongue and groove exterior ceilings, open cell spray foam insulation in attic. Outside you are greeted by a huge outdoor living area with pool, hot tub and 75' of composite decking/dock. Easy Gulf access for boating, and a great place to kayak and paddleboard in the open bay at the end of the canal. There is a public boat ramp just down the street too! 350' Storage area downstairs with French Doors. Also has 2 Washers and Dryers, making it easier for someone doing vacation rentals. Whether a vacation rental investment property or just the perfect Family Compound, this home checks a lot of boxes. Set up your showing today!

Over 3400 sqft of Luxury Living is featured with this 2007 custom built CBS in the gated community of Stirrup Key Sub in Marathon. Elevated water views, a deeded boat slip, protected community marina, multiple outdoor living areas and a private pool. Designed for both everyday comfort and entertaining, this multi-level home offers generous interior space, flexible living areas, and a thoughtful indoor-outdoor layout. The ground level features a three-car garage, ample storage, and direct access to the pool area, creating an easy flow for relaxing, hosting, and enjoying the Keys lifestyle. The second floor serves as the main living level with two bedrooms, two full baths, a full kitchen, and open living and dining areas that extend onto a large screened lanai. This level is ideal for casual gatherings, quiet mornings, and evening breezes. The third floor offers a private primary suite, sitting area or fourth bedroom, bar/kitchenette, fireplace, spa-style bath, and an expansive lanai with peaceful elevated views. A spiral staircase leads to the fourth-floor widow's walk, finished with travertine flooring and a water hookup. From this vantage point, panoramic views stretch across Marathon and toward the Gulf, creating a quiet setting for sunrise, sunset, and open-air relaxation. A private nature path winds through preserved surroundings and leads to a Gulf-front observation dock, ideal for wildlife viewing and enjoying the surrounding natural setting. Additional features include a lift to the second floor for added convenience. Centrally located in Marathon, the home offers convenient access to shopping, dining, & daily necessities. With a deeded marina slip, elevated water views, pool, garage space, storage, multiple lanais, and a flexible custom layout, this property offers a rare combination of privacy, space, and boating access in Marathon. Schedule a private showing to experience this custom home and deeded marina slip in person.

This breathtaking five-acre oceanfront estate, with 244 feet of private ocean frontage, is the crown jewel of the Florida Keys. From the moment you pass through the gates, you'll be captivated by a world of elegance, privacy, and unparalleled amenities. At the heart of this premier estate lies a resort-style pool oasis. The custom-designed 5,600+/- square foot main residence showcases exquisite craftsmanship. A separate 2,999 sq.ft. guest house offers a private retreat. A marina provide direct access to the world-famous waters of the Keys. Enjoy the gourmet kitchen, guest suites, movie theater and even the potential for a private hangar. This estate isn't just a home; it's a lifestyleyour personal resort blending tropical serenity, architectural excellence, and unmatched prestige.

Experience stunning open-water views from this exceptional 4-bedroom, 3-bath home situated on a desirable bayside corner lot. This property offers extensive dockage with a step down, custom-built steel bumpers, accommodating multiple vessels with ease. With approximately 190 feet of waterfront, you can unwind by the beautiful swimming pool and hot tub while enjoying serene lagoon views. The home is offered fully furnished and features an updated kitchen with stainless steel appliances and quartz counters, newer A/C, impact windows, and an interior laundry room with custom cabinetry. Weekly rentals are permitted, adding excellent investment potential. Enjoy outstanding views from the living area and balcony, as well as canal views from 2 of the bedrooms. This is the perfect spot for kayaking, paddleboarding, and fishing directly from your private dock. The deep water access allows for large vessels, and there is ample parking for all your toys. A public boat ramp is conveniently located just a few blocks away. Additional highlights include a dedicated rod-and-reel room/lower-level storage area just steps from the dock, a fish-cleaning station with running water, an outdoor shower, and concrete steps providing easy kayak and paddleboard launch access. Tons of storage space downstairs on an oversized lot. This is a true boater's paradise--perfectly equipped for relaxation, recreation, and coastal living at its finest.

Boater's dream in the heart of Marathon. Completely reimagined and renovated from top to bottom within the last 12 months, this exceptional 5 bedroom, 3 bathroom waterfront residence offers seven day vacation rentals, easy access to open water, 75 feet of concrete dockage, and a private pool, delivering the ultimate blend of luxury island living and investment potential in the Florida Keys. This canal front property is thoughtfully designed for life on the water, featuring a boat lift, step down, fish cleaning station, and approximately five minute access to the Gulf with convenient ocean access through Vaca Cut. From offshore fishing excursions to waterfront dining by boat, every element of the Keys lifestyle is within easy reach. Inside, the home has undergone a stunning transformation with sophisticated finishes, beautifully updated living spaces, a designer kitchen, renovated baths, and a light filled open concept layout curated for both comfort and entertaining. Every detail has been thoughtfully considered, creating a truly turnkey opportunity rarely found in the Middle Keys. With five spacious bedrooms and expansive indoor outdoor living areas, the home is perfectly suited for full time island living, luxury vacation use, or maximizing rental income potential. Ample parking provides room for vehicles, trailers, and all the necessities of an active waterfront lifestyle. Ideally located midway between Key West and Key Largo and an easy ride to Miami or Fort Lauderdale. You are also positioned near the Millionaire airport, marinas, restaurants, shopping, and everything Marathon has to offer. This beautifully renovated property is ready to be enjoyed immediately.

Embrace the RARE opportunity to own 1.75 acres of open water paradise in the prestigious, gated community of Stirrup Key. Over 600' feet of direct, open Gulf frontage, you'll enjoy spectacular sunrises and sunsets from nearly every vantage point, including a charming sunset gazebo overlooking the iconic Seven Mile Bridge in the distance. The custom Mediterranean-style residence captures the essence of resort living with expansive pavered patios, sparkling elevated pool, and spacious lounging areas absolutely perfect for entertaining against a stunning Gulf backdrop. Five protected basin docks provide sheltered boating access in the marina, while terraced tropical gardens cascade toward the water, lined with mature palms and lush landscaping for a serene coastal ambiance. Inside, soaring cathedral ceilings, wood plantation shutters, and an airy great room with real coral fireplace showcase timeless Keys craftsmanship. The split-bedroom layout ensures privacy, with a luxurious master suite featuring dual closets and skylit bath, plus separate guest quarters. Additional highlights include an elevator, 12,000-gallon cistern, huge garage for cars and golf carts, and a large lower-level storage area with workbenches, pool table, and extra laundry facilities. This gated community, with unique architecture, fewer lots, limited rentals and higher quality restrictions help to sustain a premium and private feel. Only minutes from the Marathon Airport, this one-of-a-kind estate combines open-water grandeur with island tranquility, a true Florida Keys sanctuary.

Experience the charm and character of this Gulf-front Old Florida Keys fishing lodge located in Stirrup Key, one of Marathon's most exclusive gated communities. Known for its large estate lots, deep-water access, and serene open-Gulf vistas, Stirrup Key offers privacy, prestige, and a true island lifestyle, just minutes from the conveniences of Marathon. The property consists of two lots in total for a combined size of 39,500 sf. The home sits on one of the few deep-water sites in Stirrup Key with an upgraded 165-foot pier dock with 6 new pilings, where the water is so clear you can watch tarpon, angelfish, snapper, nurse sharks, lobsters, and rays gliding beneath the dock. Beautifully maintained and elevated above flood, the residence features 3 bedrooms, 3 baths, and a loft that can serve as a fourth bedroom or home office. A brand new roof and impact windows, and sliders were recently installed for peace of mind. The open-concept great room boasts massive ceilings and walls of windows showcasing 180-degree Gulf views. A spacious kitchen with a center island and new range, Gulf front bar, wide overhanging eaves, exposed wood beams, and natural stone accents showcase classic tropical lodge architecture, perfect for entertaining. The primary suite with a large ensuite bath provides comfort and style, while a screened porch opens to the heated pool, positioned behind lush landscaping for afternoon shade. Outdoors, you'll find a sandy beach area, irrigated native landscaping, and expansive decks perfect for sunset gatherings. Additional amenities include two garage bays, one carport bay, a workshop, a garden shed, and abundant storage. Stirrup Key residents enjoy the peace of a gated, low-density community with a 365-day rental minimum, ensuring tranquility and exclusivity year-round. With its unmatched combination of deep water, open-Gulf views, and spacious multi-lot layout, this property is a true rarity in the Florida Keys with potential for expansion.

Ultimate Waterfront Compound - A Rare Package Deal! A unique opportunity to own two exceptional oceanfront homes in Marathon, FL, offering breathtaking open water views, direct ocean access, and premium boating amenities. This combined offering provides a total of six bedrooms and four bathrooms, making it an ideal family compound, luxury retreat, or investment property with excellent rental potential. Property Highlights: Total of 141 feet of direct ocean frontage Two private seawalls (85 feet and 56 feet) with a boat lift and ramp Expansive open water views of the Atlantic Built for durability with impact windows, metal roofs, and elevated structures Exterior elevator for added accessibility (1043 property) Room for a pool with plans and quote available Covered parking and additional storage space Short-term rental potential with weekly rentals allowed The properties are situated in a prime location for boating, fishing, diving, and waterfront relaxation. With direct access to the ocean, the homes offer an unparalleled coastal lifestyle. Whether you are looking for a private retreat, a multi-generational family estate, or an investment opportunity, this offering provides the space, privacy, and flexibility to meet your needs. Do not miss this rare chance to own a piece of paradise in Marathon. Contact us today for more details on this exceptional waterfront package.

Florida Keys luxury redefined! Experience this newly constructed 2025 oceanfront masterpiece perfectly balancing coastal elegance, craftsmanship, and timeless design. With 6 bedrooms, 6.5 baths, and 3,102 sq ft under air plus 2,000+ sq ft of balconies, it offers seamless indoor-outdoor living framed by endless turquoise views. An elevated infinity-edge pool merges visually with the Atlantic beyond. Inside, a bright open floor plan captures light, air, and ocean vistas. The great room flows into a designer kitchen and dining area, creating spaces that feel both connected and serene. Each ensuite bedroom is a private retreat, beautifully scaled and positioned for comfort and privacy. See Documents Tab for a full list of luxury features. Furnished and appointed throughout showcasing ''Design by Lily,'' the interior blends beach-cottage warmth with sophisticated Keys luxury. Custom furnishings, curated color palettes, and natural textures create a refined yet welcoming aesthetic. Every detail--from driftwood-toned floors to sculptural fixtures--exudes coastal elegance. Built by a long-time Florida Keys contractor with decades of local expertise, construction was overseen daily by the owners to ensure perfection in every finish and structure. Nothing escaped their eye, and it shows in the integrity and grace of the final result. Outdoor living shines with multiple covered terraces for dining and lounging, the infinity pool reflecting the sea, and gentle breezes completing the ambiance. The 157' dock ending in a 32' L-shaped terminus is complete. Newly built, fully furnished, and ready for immediate enjoyment, this residence is a rare opportunity--an oceanfront sanctuary minutes from the Marathon airport's two FBOs. Whether a private retreat or luxury vacation investment, this property embodies comfort, craftsmanship, and coastal allure.