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$2,790,000
4 Beds ⋅ 4 Baths ⋅ 618953 MLS
SERIOUS BOATERS--THIS IS THE ONE TO SEE. Exceptional waterfront opportunity in Marathon offering 110 feet of concrete dockage with dual 40-foot finger piers on an approximately 200-foot-wide canal with direct Atlantic access. Bring the boats, jet skis and kayaks--this property was designed for enjoying life on the water. This private waterfront retreat offers over 3,200 square feet with four bedrooms and three-and-a-half baths, a dramatic two-story great room, expansive windows and generous spaces for gathering and entertaining. Outside is where this property truly separates itself: extensive dockage for multiple vessels, floating jet ski and kayak docks, davits, fish-cleaning station and ice machine, plus a heated pool and spa surrounded by tropical landscaping. Weekly rentals are allowed, offering an attractive opportunity for buyers seeking a Florida Keys second home with the potential to generate additional rental income when not in personal use. Morning boat rides. Afternoons by the pool. Evenings overlooking the water. This is the Florida Keys lifestyle buyers come here to find.

14 Ave F, Marathon
$1,725,000
4 Beds ⋅ 4 Baths ⋅ 618025 MLS
Magnificent legal duplex in the vibrant heart of the Florida Keys, offering highly sought-after 7-day rental flexibility--an exceptional advantage for investors and homeowners alike. Elevated on stilts, this impressive property features two spacious bedrooms and two full bathrooms on each side, creating the perfect setup for extended families, dual living, or maximizing rental income. Ideally located just four properties from the Atlantic Ocean, the home boasts an expansive 70-foot seawall with quick, easy boating access to open water-making it a true boater's paradise. Both residences have been thoughtfully updated with modern finishes, enhancing comfort, style, and long-term value. Whether you're looking for a high-performing vacation rental, a primary residence with income potential, or a combination of both, this rare duplex offers unmatched versatility in one of the Florida Keys' most desirable locations.

668 & 670 89th St, Marathon
$2,299,000
4 Beds ⋅ 4 Baths ⋅ 613691 MLS
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.

120 Pirates Cove Dr, Marathon
$2,950,000
4 Beds ⋅ 3 Baths ⋅ 617358 MLS
Experience stunning 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.

123 W Bruce Ct, Marathon
$2,550,000
4 Beds ⋅ 4 Baths ⋅ 616907 MLS
🏡 Welcome to Emerald Flats a Waterfront Community in the heart of Marathon! Your brand-new dream home is here: ✨ Gated community entryway ✨ Gulf front water views and private boat docking. ✨ Built for efficiency and comfort there are 4 Bedrooms | 4 Bathrooms - space for everyone ✨ High ceilings & open floor plan for a modern feel ✨ KitchenAid stainless appliances + quartz countertops ✨ Separate bar/entertainment space ✨ Fully furnished with luxury coastal style - just bring your suitcases! ✨ Boat Slip 29 included (45' long x 14.75' wide) 📍 Location: Emerald Flats. 815 39th Street Gulf

815 39th St Gulf St, Marathon
$1,100,000
4 Beds ⋅ 3 Baths ⋅ 615812 MLS
Currently in all of Marathon, Duck Key & Key Colony there is no other New Construction Pool Home available below $1,780,000 besides this Brand New Under Construction 4 Bed, 3 Bath, 1786 sqft living Concrete Built Above Flood Pool Home, built by the local & well respected Design Center, This home features poured solid concrete 16x16 columns plus an Energy Efficient Seamless Metal Roof, ALL Hurricane Impact Windows & Doors, Spray Foam Insulation along with a High Efficiency 4 Ton A/C System, Modern Staircase & Rails & even an Electrical Sub Panel Box to easily plug your generator right into and Pre-Cast Concrete Floors allowing for no center columns, which maximizes usable parking for multiple vehicles & plenty of room for storage below the home. The Pool will include a Spa, will be Heated with a Saltwater System. Step inside & find Maintenance Free Wide Plank Luxury Vinyl Flooring thru out the home, 8FT High Interior Doors, 9FT Ceilings, 5 ¼'' Baseboards, Led Recess Lighting, Modern Fans in each Bedroom & the Living Room, an Open Kitchen with Shaker Soft Close Wood Cabinets with Crown Molding & Hardware including 42'' Uppers, Quartz Countertops including a Large 1 level island, a Tile Backsplash, Pendant Lighting, a Full Stainless Steel Appliance Package & Modern Single Sink & Faucet. All 3 bathrooms feature Designer Tiled Floors, Custom Tiled Showers including LED underlighting and lit shower nooks with the Primary & 1 Guest Bath having Frameless Glass Enclosures & the 2nd Guest having a Tub/Shower Combo. They all have Wood Vanities with Quartz Counters, Modern Vanity Lighting & Mirrors, Modern Faucets & Toilets. Home comes with a 1-year Builders Warranty. Home can be offered Furnished by a local interior designer for an additional cost making it Vacation Rental Ready. CONSTRUCTION PROGRESS PHOTOS ADDED AS OF 7-15-26, ETA FOR COMPLETION IS A FEW WEEKS*. 768 82nd ST Ocean which is right next door and essentially a replica with No Pool just sold for $1M.

708 82nd St, Marathon
$6,450,000
4 Beds ⋅ 5 Baths ⋅ 614065 MLS
Morton Manor is a timeless estate nestled along the Gulf's bay waters, evoking a sense of simpler times. This boat basin is truly unique, offering not just protection from wind and waves with it's jetties, but also accommodating 4 to 5 large vessels, from spacious center consoles to sportfish boats, thanks to its 8' depth. The home offers a resort-like experience reminiscent of the Caribbean, complete with amenities such as a sauna, a stunning bar and game room, a heated pool, and a private beach. This expansive, ground-level residence boasts 4 bedrooms, 4 bathrooms, a two-car garage, exposed wood beam ceilings, and a workshop. For those passionate about boating and seeking relaxation, Morton Manor is the ideal retreat.

57121 Morton St, Marathon
$1,399,000
4 Beds ⋅ 3 Baths ⋅ 613547 MLS
FRESHLY UPDATED INTERIOR! This tastefully furnished half duplex townhome features 4 generous bedrooms, 3 full bathrooms, a laundry room and a dream kitchen! Freshly painted interior and upgraded flooring on the stairs and in the bedrooms June 2026. You'll also find an ICE MACHINE, oversized swimming pool, 43' dock! A quick 15 minute boat ride to the Atlantic Ocean and you're within walking distance to famous Sombrero Beach! There's shopping & dining close by! Active vacation rental with proven history.

227 Sombrero Beach Road Unit 1, Marathon
$1,099,000
4 Beds ⋅ 2 Baths ⋅ 616290 MLS
Discover a rare opportunity in the heart of the Florida Keys! This full duplex with TWO building rights offers 2 spacious, 2-bedroom, 1-bathroom units, each unit thoughtfully designed for comfort and convenience. Situated directly on a canal with quick access to open water, it's a dream for boating enthusiasts and an excellent choice for investors seeking strong rental income potential. Perfectly positioned in the center of Marathon, this property places you minutes from beaches, marinas, dining, shopping, and top-rated schools—everything the Keys lifestyle has to offer is right at your fingertips. Residents and guests alike will enjoy evenings on the water, seamless access to both the Atlantic and the Gulf of America, and the laid-back charm that makes Marathon one of the most desirable destinations in the Keys. Whether you're searching for a primary home with supplemental rental income, a dedicated investment property, or a versatile retreat for family and guests, this duplex delivers unmatched potential. Properties like this are rarely available—don't miss your chance to own a slice of Keys waterfront living!

4901/4903 49th St, Marathon
$2,550,000
4 Beds ⋅ 4 Baths ⋅ 617355 MLS
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!

207 E Bruce Ct, Marathon
$990,000
4 Beds ⋅ 2 Baths ⋅ 618176 MLS
Solid CBS full duplex in the heart of Marathon, set on an oversized 10,000 sq. ft. lot with mature native trees for added shade and privacy. Built for strength and long-term value, this elevated stilted property features concrete construction, a concrete roof, impact windows, newer HVAC systems, and four covered parking bays below. Each unit has been fully remodeled with gray faux wood flooring, granite countertops, stainless steel appliances, and clean modern finishes. The property has a strong income history, previously grossing approximately $69,000 annually, with one side currently left vacant for easy showings. Ideal for investors, employee housing, or living in one unit while renting the other, this duplex offers flexibility, usable outdoor space, covered parking, storage potential, and a central Marathon location close to shopping, dining, marinas, beaches, and daily conveniences.

1306 &1308 & St, Marathon