Marathon Homes for Sale

Marathon Homes for Sale

Welcome to Marathon, Florida—a tropical paradise nestled in the heart of the Florida Keys. Known for its stunning sunsets, crystal-clear waters, and vibrant marine life, Marathon offers a unique blend of island charm and modern convenience. This picturesque city, located in Monroe County, is a haven for those seeking a laid-back lifestyle infused with adventure.

Marathon boasts an array of outdoor activities, from world-class fishing and diving to kayaking through the serene mangroves. With over 13 miles of beautiful beaches and parks, residents can enjoy sun-soaked days filled with water sports and leisurely strolls along the shore. The island is also home to the iconic Seven Mile Bridge, which connects you to the rest of the Keys and offers breathtaking views of the ocean.

As you explore the real estate opportunities in Marathon, you'll find a diverse selection of homes for sale that cater to various tastes and budgets. Whether you're looking for a cozy waterfront cottage, a luxurious oceanfront estate, or a charming single-family home, Marathon has something for everyone. Many properties feature stunning views, private docks, and easy access to boating and fishing—ideal for those who crave the ultimate island lifestyle.

With its friendly community, excellent schools, and a range of local amenities, Marathon is not just a place to live; it's a place to thrive. Discover your dream home in this enchanting island paradise and embrace the Florida Keys lifestyle today!

Newest Marathon Homes for Sale

$999,000
3 Beds ⋅ 2 Baths ⋅ 621265 MLS
Welcome to 410 85th Street Ocean in Marathon, an oceanside waterfront home offering 3 bedrooms, 2 baths, and approximately 1,409 square feet of living space with direct access to the Atlantic. Boaters and anglers will appreciate the 60 feet of canal frontage along a roughly 40- to 45-foot-wide canal, plus the exceptionally quick route to open water--just 654 feet to the ocean. With no long idle out, this is an ideal setup for anyone who wants to spend less time cruising the canal and more time fishing, diving, or enjoying the water. The dock was recapped in 2009 with reinforced cantilevers and sits over cap rock, offering a solid waterfront setup that remains in great condition. New metal boat bumpers have also been added, and the dock enjoys an open-water view. There is 30-amp shore power in place, with the ability to convert to 50 amp if needed. Whether you are looking for a full-time Keys residence, weekend escape, or waterfront retreat designed around boating, this property delivers the kind of immediate ocean access that makes Marathon living so desirable.

410 85th St, Marathon
$5,399,000
8 Beds ⋅ 8 Baths ⋅ 621248 MLS
Looking for a truly unique opportunity in the Florida Keys? Check out these 2 Custom Luxury CBS Pool Homes that are side by side! Live in one, and rent the other, corporate retreats, weddings, vacation rentals, tons of options! Experience luxury waterfront living in these custom-built, new construction two-story concrete homes featuring 4 bedrooms and 4 private en-suite baths. Designed for entertaining, the open-concept layouts seamlessly blends indoor and outdoor living. The chef's kitchens boasts top-of-the-line stainless steel appliances including double convection ovens, Smart refrigerator, dishwasher, vented range hood, prep sink, wine chiller, quartz countertops, custom cabinetry, and a large island. Porcelain tile flooring, custom fixtures, LED lighting, and abundant natural light enhance every space. A first-floor en-suite bedroom offers balcony access overlooking the pool, dock, and water. The dramatic floating staircase with custom LED chandelier leads to three additional en-suite bedrooms upstairs. The primary suite features a floating soaking tub, double vanity, custom porcelain tile shower, and MOEN programmable multi-head shower system with smartphone controls. Additional features include impact windows and doors, web-enabled security camera system, 4K Smart TVs in every room, 8-foot interior doors, two 3-ton 16 SEER A/C units, standing seam metal roof, aluminum railings, and expansive balconies on both levels. Located in the desirable Flamingo Island neighborhood of Marathon, just minutes from Sombrero Beach, dining, shopping, and entertainment. Enjoy quick access to open water, world-class fishing, boating, diving, and the crystal-clear turquoise waters of the Florida Keys. Built to impress and built to last, these exceptional waterfront retreats offer the ultimate Florida Keys lifestyle. Set up your preview today!

835 & 837 Copa D Oro, Marathon
$2,695,000
2 Beds ⋅ 2 Baths ⋅ 621246 MLS
A rare combination of land, privacy, boating, and open-water living awaits on approximately half an acre of Gulf-front paradise in Grassy Key. With panoramic water views, a private beach, waterfront dock with a 20,000-pound boat lift, heated concrete pool, and lush tropical grounds, this property captures the very best of Florida Keys living. Surrounded by mature landscaping, the two-bedroom, two-bath residence enjoys a peaceful, private setting with beautiful Gulf views. Light-filled living spaces embrace the waterfront surroundings, while the kitchen features granite countertops and stainless steel appliances. Both bedrooms offer private baths for owners and guests alike. Step outside and the Keys lifestyle comes alive. Walk to your private sandy beach, lower the boat from your 20,000-pound lift for a day on the water, relax beside the heated pool, or watch the sun disappear over the Gulf from your own shoreline. Expansive grounds and tropical landscaping provide a level of space and privacy that can be difficult to find in the Keys. The property also boasts an exceptional rental history, consistently renting approximately 50 weeks per year and generating roughly $175,000 in annual rental revenue--a testament to the tremendous appeal of this waterfront setting. Whether you're searching for a private Keys retreat or a proven vacation rental investment, this Grassy Key property offers an extraordinary combination of lifestyle and opportunity. Private beach. Open Gulf views. Boating. Pool. Half an acre of tropical privacy. This is the Florida Keys lifestyle people dream about.

57457 Morton St, Marathon
$990,000
3 Beds ⋅ 2 Baths ⋅ 621222 MLS
This is a great opportunity to purchase a Concrete Block Deep Water Access Canal Front Home in the Heart of Marathon on the Gulf side of US 1 below $1M. With about a 4 foot control depth and an existing concrete seawall in place and about 77 feet of frontage, this property can easily accommodate the larger center consoles. Open Water Access in just a few minutes to the Gulf and about 10 minutes to the Atlantic Ocean. The home features 3 Beds, 2 baths, with 1,242 sqft on a large 8,485 offering sqft lot with a Concrete Driveway, Room to Park a RV, Boat Trailer, and room for a pool. The rear Covered Screen Lanai overlooks the canal, and the Covered Carport has built in Storage closets. The home features a Metal Roof and inside it does offer original 1960's charm with a ton of potential as right now it has original Kitchen Cabinets, Terrazzo Floors, Mini Splits in almost all the rooms for efficient air conditioning and original windows. Both baths have original tile showers with 1 being a Full Shower and the other featured a tub/shower combo. With the house right next door just selling at 11295 3rd Avenue Gulf for $1.45M, you have a unique opportunity to acquire, make smart renovations and be sitting on strong positive equity if done right. Due to the lot size, you can even choose to knock down the existing house and build a Brand-New Modern home to your exact specs and take advantage of the deep-water canal. We currently have plans for homes ranging from 1750 sqft to just below 4000 from the well-respected local builders, Design Center. We also have local lenders in place to offer construction financing up to 80%. So much potential and routes you can with this one.

11285 3rd Ave, Marathon
$1,250,000
2 Beds ⋅ 3 Baths ⋅ 621219 MLS
Fully licensed 7 day vacation rental property now offered at Bonefish Yacht Club Townhomes, a Middle Keys premiere boating community cloistered around the 50 slip Bonefish Marina. Resort style living in this sought after oceanfront complex of only 34 homes. Conveys with A-16, a deep water, direct ocean access, 40' liveaboard boat slip. Other amenities featured are; swimming pool, tiki, meticulously maintained tropical landscaping, tennis and private beach access. Unparalleled views of the marina and Key Colony Channel. Two story townhome with covered parking and secure angler's room on the lower level, kitchen, living, dining on the main level and two spacious bedrooms with full baths on the third floor. Private, open air balconies to enjoy both sunrise and sunset. Concrete construction, impact windows and metal roof. Excellent for a full time residence, Keys fishing getaway or investment property as a income producing weekly rental. A true pleasure to show.

96 Ave C, Unit 4, Marathon
$1,295,000
3 Beds ⋅ 2 Baths ⋅ 621216 MLS
Discover the potential of this concrete constructed, waterfront pool home tucked away on tranquil Flamingo Island. Offering the ideal opportunity to renovate, personalize, and create your own Florida Keys retreat, this property features three bedrooms, two bathrooms, and nearly 1,300 square feet of interior living space. More than 600 square feet of screened porches invite relaxed indoor-outdoor living, while over 500 square feet of enclosed storage provides valuable additional space for boating gear, bicycles, fishing equipment, and more. Boaters will appreciate the newly constructed 60-foot wood dock, completed in 2025, along with excellent deep-water access through nearby Sister Creek. After a day on the water, unwind beside the concrete pool or enjoy the peaceful island surroundings. Additional improvements include a metal roof installed in 2020 and termite tenting completed in 2025 by Hammerhead Termite Control. Located behind the Florida Keys Golf and Country Club, Flamingo Island is a quiet, dog-friendly waterfront neighborhood close to everything Marathon has to offer. Take the golf cart to Sombrero Beach, Publix, nearby restaurants, and local conveniences. With superior concrete construction, substantial dockage, a private pool, generous outdoor living areas, and an inviting waterfront setting, this fixer-upper presents a rare blank canvas ready to be transformed into your ideal Keys escape.

105 Santa Barbara, Marathon
$5,499,000
5 Beds ⋅ 5 Baths ⋅ 621212 MLS
At the very tip of a private peninsula in the heart of the Florida Keys, this stunning Gulffront property delivers the ultimate waterfront lifestyle. Built in 2022, this 4,146 sq. ft. Coastal Modern residence was crafted by one of Marathon's premier builders with meticulous attention to detail, blending clean architectural lines with the relaxed elegance of island living. From the moment you arrive, the Gulf is your constant backdrop. Expansive walls of glass flood the interiors with natural light and frame endless turquoise waters. Every living area, from the two spacious lounges to the gourmet kitchen, was designed to maximize the view and the connection to the outdoors. The chef's kitchen is both beautiful and functional, featuring waterfall-edge quartz counters, premium stainless appliances, and abundant prep space. Whether hosting a casual brunch or an elegant dinner, this open-concept space flows seamlessly to indoor and outdoor gathering areas. Five ensuite bedrooms provide private sanctuaries for family and guests. The primary suite is a haven unto itself, offering a sitting area, spa-inspired bath, and a private porch where morning coffee comes with dolphin sightings and golden sunrises. Step outside to a personal resort: a shimmering pool with sun shelf, expansive patios for lounging, and a palm-lined peninsula with a fire pit at its tip. A deep-water dock, private boat basin, and 4-post lift make boating effortless, with 5' control depth ensuring smooth access to open water. This home offers the convenience of an elevator, an oversized 2-car garage, and low-maintenance construction designed for coastal living. Located 5 minutes from Marathon Jet Center, you can go from tarmac to tiki torch in record time. Whether it's a weekend escape, seasonal retreat, or full-time residence, this Gulf Front estate offers something truly rare: privacy, luxury, and the beauty of the Keys wrapped into one extraordinary address. Fantastic Rental History. Offer Turnkey.

875 50th St, Marathon
$1,150,000
3 Beds ⋅ 2 Baths ⋅ 621176 MLS
Welcome to 11295 6th Ave Gulf -- a waterfront corner lot in one of Marathon's best-kept-secret neighborhoods. Nestled on a quiet street directly across from a nature preserve, this 3-bedroom, 2-bath canal home delivers something almost impossible to find in the Keys: real privacy, real waterfront, and real potential. Eighty feet of deep-water canal frontage on an oversized 8,000 sq ft corner lot. One canal from the Gulf of America with 10-minute access to Vaca Cut -- your gateway to world-class offshore fishing, diving, lobstering, and reef exploration. The spacious vaulted-ceiling screened porch overlooking the canal is where you'll spend every morning and evening. A 385 sq ft concrete dock with davits is ready for your boat. The corner lot provides ample parking for trailers, vehicles, and toys -- a true premium in the Keys. This is also a performing investment property. The home operates as an active vacation rental on Airbnb and VRBO with verified income. Sold fully furnished and turnkey -- a new owner can generate income from day one. Recent updates include a new 2025 HVAC system, 2025 impact sliding glass door, hurricane shutters on all windows, and all furnishings included. The home is solid, comfortable, and rental-ready as-is -- with room to add your own personal touches and make it truly yours. For the visionary buyer: build up on this premium corner lot and you could be rewarded with Gulf of America views. An elevated waterfront home on this lot -- with a nature preserve across the street and 80 feet of canal -- would be one of the most compelling properties in Marathon. The location is irreplaceable. The potential is limitless. Come see it.

11295 6th Ave, Marathon
$3,450,000
5 Beds ⋅ 4 Baths ⋅ 621171 MLS
This tropical Sombrero Beach 2-Home Compound is set on a spacious 17,600 sq ft fenced lot with Pool, 2 Tikis and located just 2 properties in from the ocean. Fantastic deep water boating access from the 97' dock with 2 Boat Lifts, 15,000 lbs and 3,000 lbs. . The main house features 2,540 sq. ft. with 3 Bedrooms, 3 Full Baths and a spacious living room with direct Pool views, cathedral tongue-and-groove ceilings, a dedicated laundry room, and a thoughtful layout with a separate guest wing. The Primary Suite connects to a versatile sunroom with direct walk-out access to the Pool deck, while a full wall of sliding glass doors seamlessly connects the indoor and outdoor spaces. A covered walkway conveniently connects all front entrances. Guest will love the stand-a-lone 2 Bedroom 1 Bath 704 sq. ft. Guest House offers guests lots of privacy and conveniences with Living Room and morning Kitchen. Step outside to your own personal oasis, featuring a heated/chilled pool complete with a waterfall and a custom mural painted by a local artist. The outdoor entertaining area highlights two Tiki huts, one equipped with a built-in outdoor grill perfect for enjoying the Keys lifestyle. Built for peace of mind and ultimate convenience, the property includes a brand-new metal roof, impact windows for both homes, a whole-house generator powered by an in-ground propane tank, an outdoor shower, a storage shed, and a carport accommodating 4+ vehicles. Enjoy easy access to the nearby Marathon Jet Center, plus a short walk or bike ride to Sombrero Beach for breathtaking sunrises and sunsets and holiday festivities making this move-in ready or investment-ready Keys retreat truly complete.

69 Tingler Ln, Marathon
$2,899,000
5 Beds ⋅ 5 Baths ⋅ 621167 MLS
Brand-new waterfront construction in Marathon's desirable Coco Plum neighborhood, offering 5 bedrooms, 5 bathrooms, 3,458 square feet under air, and 5,204 total square feet across three thoughtfully designed levels. Boating and waterfront living take center stage with two 40+ foot slips, offering plenty of room for multiple vessels or personal watercraft and convenient access to the surrounding Keys waters. A private pool, spacious covered terrace, and summer kitchen overlooking the canal create an ideal setting for entertaining, relaxing, and enjoying life on the water. The ground level features a private bedroom, full bath, family room, and laundry closet, providing excellent flexibility for guests or additional living space. The main level showcases an expansive open-concept great room with kitchen, dining, and living areas, along with custom cabinetry, quartz countertops, a built-in cocktail bar, separate coffee bar, an additional bedroom with en-suite bath, guest bath, and a covered terrace with canal views. Upstairs, the spacious primary suite offers a walk-in closet, luxurious en-suite bath, and private waterfront terrace. Two additional bedrooms, a shared bath, and a second full laundry room with mop sink and linen storage add convenience. Built with CBS construction, impact-resistant windows and doors, a metal roof, and dual-zone A/C, the home also features wood and stone flooring, porcelain tile, custom cabinetry, and professionally designed landscaping. With substantial dockage, direct access to the water, a private pool, and multiple waterfront terraces, this exceptional new residence is designed to fully embrace the Florida Keys boating lifestyle.

111 Ave D, Unit 2, Marathon
$2,395,000
4 Beds ⋅ 3 Baths ⋅ 621168 MLS
New construction waterfront living in the heart of Coco Plum. This beautifully designed 4-bedroom, 3-bath residence combines modern coastal style, exceptional outdoor living, and direct boating access in one of Marathon's most desirable waterfront neighborhoods. Thoughtfully positioned to take advantage of the setting, the home offers expansive open-water views from nearly every room and a bright, open-concept layout designed for both everyday living and entertaining. The main living level features a spacious living and dining area surrounded by natural light and water views, along with two guest bedrooms and a full bath. Upstairs, two generously sized primary suites each feature private en-suite baths and elevated panoramic views, creating peaceful private retreats above the water. Outdoor living is a true highlight, with three covered terraces spanning both levels, a large resort-style pool, and a convenient poolside prep station with sink and storage. Whether hosting guests, relaxing by the pool, or enjoying a quiet morning overlooking the water, the home is designed to embrace the Florida Keys lifestyle. Boaters will appreciate approximately 50 feet of deep-water dockage with quick ocean access, along with a fish-cleaning station, bait freezer, and covered parking for added convenience. Ideally located near Coco Plum Beach and just minutes from Marathon's dining, shopping, and attractions, this newly constructed waterfront residence offers an exceptional combination of modern comfort, boating access, privacy, and island living, perfect as a full-time residence, vacation retreat, or investment property.

171 Ave D, Marathon
$1,349,000
4 Beds ⋅ 3 Baths ⋅ 621156 MLS
Tucked into the natural landscape of Grassy Key, 235 Tropical Avenue offers a unique combination of space, privacy and the unhurried character that defines life in the Middle Keys. Set on a 15,000-square-foot lot in Crains Subdivision, this concrete stilted residence offers more than 3,600 square feet of living space, impact windows and doors, and generous indoor-outdoor areas designed around the Florida Keys lifestyle. An expansive open layout creates room to gather, entertain and settle in comfortably, with multiple living spaces and an easy connection to the outdoors. Lush native vegetation surrounds the property, creating a remarkable sense of privacy and seclusion. The partially fenced backyard centers around an inviting in-ground pool with waterfall, tanning shelf and water features, setting the stage for long afternoons outside and evenings under the palms. Ample parking provides room for multiple vehicles and boat trailers, an especially valuable feature for enjoying life on the water. Above it all, a rooftop observation deck captures ocean views and a beautiful perspective across Grassy Key. Watch the light change over the horizon and native birds gather around the natural salt ponds behind the property. Crains Subdivision also offers a community sunset park, while a public boat ramp is just minutes away for convenient access to the surrounding waters. Centrally positioned between Marathon, Duck Key and Islamorada, the home is convenient to Curry Hammock State Park, Dolphin Research Center, waterfront dining, marinas, fishing, diving, paddling and the Florida Keys Overseas Heritage Trail. Whether envisioned as a full-time residence or a private Florida Keys retreat, 235 Tropical Avenue feels connected to its surroundings, offering a spacious and secluded setting from which to experience the water, wildlife and easy rhythm of Grassy Key.

235 Tropical Ave, Marathon
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