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$3,495,000
6 Beds ⋅ 4 Baths ⋅ 618280 MLS
Luxurious waterfront home offering sweeping views of Shelter Bay and 75 feet of deep-water (5 ft) dockage with direct ocean or Gulf access via Vaca Cut, just minutes to open water, a true boater's delight. Custom built by D'Asign Source, this six-bedroom 3.5-bath residence spans over 3,300 square feet and comes fully furnished (with select seller exclusions), making it ideal as a turnkey vacation rental (7 day minimum), second home, or primary residence. Designed in classic South Florida style, the home features soaring ceilings, an open and airy floorplan, abundant natural light, and whitewashed terracotta tile that adds warmth and timeless island character. The spacious kitchen includes granite countertops, stainless steel appliances with a Bosch convection cooktop, and a center island, perfectly suited for entertaining. A flexible sixth bedroom functions beautifully as an office on the second level, part of a private primary retreat that occupies the entire upper floor. Outdoor living is a highlight, with an east-facing backyard, a resort-style pool (resurfaced in 2021) and hot tub, outdoor kitchen, convenient poolside bathroom connects directly to one of the bedrooms (ideal for guest comfort and rental functionality), and lush, easy-care Xeriscaping, perfect for relaxed island evenings. Boaters will also appreciate the step-down dock and concrete seawall rebuilt in 2024, providing unobstructed water access. Additional features consist of a low maintenance brick paver driveway and 2 car garage (new door in 2025). Key Colony Beach is a planned island community known for its mobility, quiet streets, and dedicated city services. Residents enjoy public beaches, a par-3 golf course, marina, tennis and pickleball courts, scenic trails and biking paths. An exceptional opportunity for investors, water lovers, and those seeking a light-filled waterfront home where every detail supports both lifestyle and long-term value.

820 12th St, Key Colony
$2,650,000
617895 MLS
One of the last two duplex zoned, canal front, lots. New seawall in 2022. Building permits are quick in Key Colony Beach. Have your building plans reviewed and approved by the City and you are good to go. Seller / Developer will consider building as per his plans with a Pre-Construction agreement for one side of the duplex building at $2,350,000. Plans for each half duplex to be approximately 2,400 sq.ft. 4 bedrooms, 4 baths and a roof top deck. Ask for details and a review of building plans.

790 10th St, Key Colony
$899,995
2 Beds ⋅ 2 Baths ⋅ 618480 MLS
Turnkey, fully furnished waterfront property with strong Airbnb income history. Enjoy 37.5 ft of dockage with unrestricted ocean access and a quick 5‑minute ride to the Gulf and ocean side. Home sits above flood, helping reduce insurance and overhead. Features include a 2017 roof and a new water heater (2025). A rare opportunity for investors or buyers seeking effortless coastal living.

410 10th St, Key Colony
$1,199,000
2 Beds ⋅ 2 Baths ⋅ 617571 MLS
Experience the best of Keys living in this immaculate 2-bedroom, 2-bath waterfront home in coveted Key Colony Beach. The inviting coastal layout opens to a very spacious 480 sq. ft. screened-in covered porch enhanced with newer high-end furniture providing a dining area and living area with 55'' TV creating the perfect venue for entertaining friends and family and hosting Sunday afternoon football. Step outside to your private saltwater pool, offering the perfect place to unwind after a day on the water. Boaters will appreciate the 37.5 feet of dockage, along with a new seawall installed in 2022 and a durable concrete seawall cap for long-lasting confidence and convenience. This property conveys with rare deeded bay bottom, giving you full ownership of the submerged land beneath your dock. This rare asset sets the home apart from typical canal front properties. Key Colony Beach hosts the perfect Keys lifestyle with scenic biking and walking, a 9-hole golf course, a marina, tennis courts, pickleball, and a beautiful Sunset Park just moments away. Whether you seek a serene personal retreat or a proven income-producing property, this home delivers the ideal blend of comfort, coastal charm, and true waterfront living. This is a perfect turnkey property.

171 10th St, Key Colony
$1,495,000
2 Beds ⋅ 2 Baths ⋅ 615786 MLS
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.

351 5th St, Key Colony
$875,000
2 Beds ⋅ 2 Baths ⋅ 617600 MLS
Discover your dream waterfront getaway in the Florida Keys! This stunning 2-bedroom, 2-bath half duplex on 7th St in the highly sought after Key Colony Beach offers an unmissable opportunity. Boasting the widest canal in the area, it's a boater's paradise with ample dock space for large vessels and potential for a boat lift (with permits). Enjoy outdoor living at its finest with a new 9x16 chickee hut, installed in 2023 and equipped with electricity and a fan for ultimate comfort. The home is move-in ready, featuring a completely renovated kitchen with granite countertops, updated bathrooms, and impact windows and doors throughout, with the exception of one slider. A unique walkthrough connects the guest room to the master suite, adding to the home's charm and convenience. This home is in the vacation rentals and has bookings currebtly through April 18, 2026.

26 7th St, Key Colony
$875,000
2 Beds ⋅ 2 Baths ⋅ 617494 MLS
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.

261 9th St, Key Colony
$2,845,000
7 Beds ⋅ 7 Baths ⋅ 617788 MLS
Exceptional canal-front opportunity with proven income potential. This expansive 7-bedroom, 7-bath residence offers outstanding flexibility as a legal duplex with an interior lockout, allowing it to function seamlessly as a large single-family home or as two separate living spaces. The configuration includes a generous 5BR/4BA main residence paired with a private 2BR/2BA guest wing, topped off by a convenient pool bath located in the game room, making it ideal for multigenerational living, guests, or vacation rental use. The main living space welcomes you with a dramatic two-story entry, an open-concept great room, multiple dining areas, wet bar, and a well-appointed kitchen that flows to a waterside balcony. The lower-level unit features its own open living and kitchen area, providing privacy and versatility. Four bedrooms are ensuite, complemented by 2 primary suites overlooking the water. Recent upgrades include complete concrete spalling repairs and a fresh exterior repaint, adding peace of mind and refreshed curb appeal. Mediterranean-inspired design elements are carried throughout, along with impact windows and doors, multiple balconies, and inviting indoor-outdoor living spaces. Outside, enjoy a heated pool, spa, covered poolside lanai, and 75 feet of concrete dockage with quick boating access to both the Atlantic Ocean and the Gulf of America. Additional features include a two-car garage and ample off-street parking. This property has a strong, established vacation rental history and is currently an active rental.

580 & 590 10th St, Key Colony
$1,300,000
2 Beds ⋅ 3 Baths ⋅ 618394 MLS
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.

651 9th St, Key Colony
$2,650,000
617872 MLS
One of the last two duplex zoned, canal front, lots. New seawall in 2022. Building permits are quick in Key Colony Beach. Have your building plans reviewed and approved by the City and you are good to go. Seller / Developer will consider building as per his plans with a Pre-Construction agreement for one side of the duplex building at $2,350,000. Plans for each half duplex to be approximately 2,400 sq.ft. 4 bedrooms, 4 baths and a roof top deck. Ask for details and a review of building plans.

760 10th St, Key Colony
$1,800,000
4 Beds ⋅ 3 Baths ⋅ 617021 MLS
A rare opportunity to own a premier piece of Key Colony Beach real estate. This spacious 4-bedroom, 3-bathroom home boasts high-demand features, making it immediately rental-ready for excellent income potential. The outdoor space is a renter's (and owner's!) delight: a large, beautiful pool, a classic Tiki hut for tropical shade, and a substantial 75-foot dock on a deep-water canal with a 16k lb. boat lift for easy access to world-class fishing and diving in the Florida Keys. Storage is a breeze with a dedicated garage for a car or golf cart. Don't miss this chance to secure a powerful income-producing property or your private waterfront getaway.

600 12th St, Key Colony
$838,000
2 Beds ⋅ 2 Baths ⋅ 617425 MLS
This waterfront half duplex is now available to purchase, or also available to own the full duplex (MLS 617382 for $1,700,000). A rare opportunity to enjoy a beautifully maintained piece of paradise in highly desirable Key Colony Beach, owned by the same family for more than 40 years. This property delivers exceptional dockage, timeless updates, and the certainty of a well cared for home. Located on a picturesque 100 foot wide canal, this location provides the best of Keys boating. Gain incredibly quick access to both the open Ocean and the open Gulf with a short 5 minute boat ride, or a peaceful 10 minute paddle. This half duplex offers 33 feet of concrete seawall with wood dock and fish cleaning station. Enjoy 2 bedrooms, 2 bathrooms and over 1,000 square feet of inviting living space, perfect for gathering, relaxing, and creating lasting memories. Featuring impact windows and doors plus a metal roof and concrete construction. There is ample parking for cars, trailers, and all your island toys. Here, island living is effortless. Stroll or bike the friendly streets throughout the City of Key Colony Beach and enjoy easy access to the marina, golf course, pickleball and tennis courts, bocce ball, playgrounds, horseshoes, the Post Office, City Hall, Police Department, and the beloved Sunset Park. Your dream of a true Keys lifestyle awaits you on 9th Street. Welcome home to paradise!

271 9th St, Key Colony
$1,700,000
4 Beds ⋅ 4 Baths ⋅ 617382 MLS
A rare opportunity to own a beautifully maintained piece of paradise in highly desirable Key Colony Beach; owned by the same family for more than 40 years. Offered as a full duplex for $1,700,000 or purchase just one half (271 9th Street - $838,000 or 261 9th - $875,000). This property delivers exceptional dockage, timeless updates, and the certainty of a well cared for home. Located on a picturesque 100 foot wide canal, this location provides the best of Keys boating. Enjoy incredibly quick access to both the open Ocean and the open Gulf with a short 5 minute boat ride, or a peaceful 10 minute paddle. The south side (261) features a generous 42 foot dock, while the north side (271) offers 33 feet of additional dockage, providing a total of 75 feet to comfortably accommodate large vessels. The full duplex includes 4 bedrooms and 4 bathrooms with over 2,000 square feet of inviting living space, perfect for gathering, relaxing, and creating lasting memories. There is ample parking for cars, trailers, and all your island toys, plus a covered carport and storage room on the south side. Here, island living is effortless. Stroll or bike the friendly streets throughout the City of Key Colony Beach and enjoy easy access to the marina, golf course, pickleball and tennis courts, bocce ball, playgrounds, horseshoes, the Post Office, City Hall, Police Department, and the beloved Sunset Park. Your dream of a true Keys lifestyle awaits you on 9th Street. Welcome home to paradise!

261 271 9th St, Key Colony
$1,875,000
5 Beds ⋅ 3 Baths ⋅ 618755 MLS
Spacious and sophisticated waterfront home situated on a wide canal with desirable eastern exposure, offering serene views of the in-ground pool and 100-foot-wide canal. Designed for both entertaining and everyday comfort, the home features a covered patio on the lower level and a generous wooden deck on the upper level, connected by elegant spiral stairs leading to a dedicated entertainment area below. The newly updated upstairs kitchen is bright, modern, and exceptionally spacious, anchoring the upper-level living space. This five-bedroom, three-bathroom residence is thoughtfully laid out with two bedrooms and two bathrooms upstairs, and three bedrooms with one bathroom downstairs--ideal for extended family, guests, or rental flexibility. A circular paver driveway provides ample parking, while separate living areas on each floor enhance privacy and functionality. The Corian kitchen, expansive layout, and waterfront lifestyle make this property suitable as a large family home, corporate retreat, or high-performing vacation rental. Complete with a private boat lift and quick access to the Atlantic Ocean, this home delivers the full waterfront experience--whether as a permanent residence or an income-generating investment.

320 5th St, Key Colony
$1,350,000
3 Beds ⋅ 2 Baths ⋅ 616455 MLS
Waterfront Investment Opportunity in the Florida Keys! Located in desirable Key Colony Beach, this 3-bedroom, 2-bath property offers the perfect blend of tropical living and income-producing potential. Built in 2006, and 'above flood' this popular ''Ellison'' half duplex offers 1,540 sq ft of well-designed living space on one level with NO STAIRS to climb. Offering more dockage than most half duplexes, with 46 FEET OF CANAL FRONTAGE WITH STEP DOWN DOCK and quick access to the ocean--a dream setup for boating, fishing, and watersports enthusiasts. This property has operated as a well-established and successful weekly vacation rental for over 10 years. Per the seller, it generates, on average, $135K-$140K in annual gross income and rents 49 weeks per year. Future bookings are strong, making this a truly turnkey investment opportunity. Inside, you'll find a bright and open floor plan with tile flooring throughout, complemented by a nice sized kitchen with granite countertops, stainless steel appliances, and ample cabinet space. The spacious primary suite includes an ensuite bath with double vanities, while two additional bedrooms offer flexibility for guests or family. Step outside and enjoy true Florida Keys outdoor living with your private pool, the perfect spot for relaxing after a day on the water, and there's plenty of room in the TWO-CAR GARAGE to store your boating and fishing gear. You'll also enjoy access to all that Key Colony Beach has to offer, including Sunset Park, tennis courts, pickleball, a 9-hole golf course, playground, and a couple of restaurants--all within easy walking or biking distance. Whether you're seeking a second home in paradise or a proven short-term weekly rental, this property delivers both lifestyle and ROI. Enjoy it yourself when you like, and have it generate income for you when you can't be there!

260 Sadowski Cswy, Key Colony