luxury real estate for sale Key Colony Beach, United States

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.

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 spacious 3-bedroom, 3-bath oceanfront townhome in the highly sought-after Bonefish Yacht Club Townhomes offer 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 deeded boat slip in Bonefish Marina (B-34). 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 and new A/C in 25 with 12 year warranty.

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.

This marina townhome plus 40' deeded deep water liveaboard boat slip 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. Inside, the home offers 1,464 sq. ft. of light-filled living space featuring a gourmet chef's kitchen with brand new 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 ensuite bath. The guest suite also enjoys its own balcony, a full bath, and generous closet space. The ground level includes a private tiled 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 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 and beautifully maintained resort amenities, this residence delivers a rare opportunity to enjoy luxury waterfront living with access to world-class boating, fishing, and the best of the 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.

Now priced UNDER recent appraised value of $4,500,000! 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.

INVESTORS will appreciate and experience waterfront living at its finest in this beautiful 2 story residence with a ground level elevated entry that has been renovated to achieve the perfect blend of coastal living with upscale entertaining in mind. Thoughtfully designed with an open and airy interior space, and grand entrance that flows effortlessly onto two outdoor balconies makes this residence perfect for entertaining or relaxing and enjoying the bay and sunset views. Features include a beautiful granite kitchen, custom and private bar area, open concept great room and neutral tiled flooring. The spacious chef's kitchen with granite counter tops and stainless steel appliances, a second level master suite with walk in closet, en suite bathroom with jetted tub and separate shower, three well appointed guest bedrooms, 3 bathrooms and office space off the main living area. Windowed porches allow for more living space outside of air-conditioned space as well as more entertaining room. Enjoy fishing off the dock or boating in and out of the area. The nearby community park boasts a small beach, and boat ramp which can be used to launch your boat. Restricted rentals makes this community even more desirable due to less vacation rentals and more serenity. This open water bay front home is located near Marathon Airport and the property can be purchased on one lot or can be combined with two parcels for potentially more living space, a cabana accessory structure, pool, putting green, or pickle ball court. West of Marathon Airport in a gated bay side community. Buy both for future potential living space or simply enjoy the green space overlooking the Florida Bay. Additional lot can be purchase separately and is contiguous to this home on 120 Pirates Cove Drive in exclusive and gated Stirrup Key.

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.