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Browse All Harbor Isle (48.5) Properties for Sale

$679,000
618347 MLS
Premium Waterfront Lot includes a building right/TBR - READY TO BUILD no waiting, INCLUDES 2 SETS OF HOUSE PLANS, The VACANT LAND PRICE is 679,000. Alternatively, you can choose to have the Seller coordinate the New Construction Project already planned to begin in 2026 at a completed price of 2,795,000. Breathtaking Views with Deep Water Protected 50 Ft Dockage! Discover your dream home in Marathon, Florida, offering 3,200 sq. ft. of luxurious living space. This 5-bedroom, 5-bathroom masterpiece features a private pool, elevator, and a stunning rooftop observation deck-perfect for enjoying epic sunsets over Boot Key Harbor. Work with Keys Dream Properties to customize your finishes, including interior and exterior colors, tile, quartz countertops, lighting, and plumbing fixtures. Tailor every detail to your taste and make this house truly your own. Located in the heart of Marathon, you'll enjoy easy access to endless shopping and dining options, from fine dining to casual eats. With a protected deep-water dock, you're minutes from both the Atlantic and Gulf, offering World-Class Fishing, Snorkeling-Diving, and Boating adventures. For those breezy days, Boot Key Harbor provides calm waters for social boating, complete with on-the-water dining and cocktails. Best of all, there are NO HOA FEES, and the property allows 7-day rentals, giving you the flexibility to offset your investment through vacation rentals in Marathon's thriving market. This home's combination of luxury, customization, and location offers the best of the Florida Keys Lifestyle. Construction scheduled to begin in 2026. Don't miss this rare opportunity to design and own your slice of paradise. Contact us today!

1021 27th St, Marathon

$675,000
2 Beds 2 Baths 610405 MLS
**Stilted Waterfront Gem with Boat Lift Under $1M**Discover the ultimate waterfront lifestyle at this exceptional property located at 668 James Ave, Marathon, FL 33050. Boasting a stilted design and priced under $1 million, this home offers quick ocean access to both the Atlantic and Gulf waters, making it a boater's paradise. Within a 10-minute boat ride, you'll find yourself within reach of 5 restaurants, 3 gas docks, and 3 marinas for convenient haul-outs. The hot tub area underneath the home exudes a true Keysey vibe, with a decked-in, shaded, and private space perfect for relaxation. The property features plenty of understairs storage lockers, a lower level enclosure serving as a workshop and additional storage space. The backyard is a tropical oasis, complete with a fire pit area, pool table, lounge chairs for sunbathing, and a cookout area equipped with a grill, microwave, and fridge - everything you need for the quintessential Florida Keys experience. Enjoy incredible sunrises and sunsets off of the two decks and private backyard with lush landscaping, adding to the serene ambiance. Launch your kayaks into Boot Key Harbor and explore the mangrove trails just minutes away from your dock. Experience fishing, kayaking, sunbathing, and relaxing in the hot tub, all from the comfort of your own backyard. With world-class fishing and ocean access at your doorstep, this property is a true waterfront paradise. The well-maintained home features covered parking, an upstairs deck with a covered grill area, and easy access to the iconic 7 Mile Bridge. Take advantage of the proximity to Key West for day trips while benefiting from Marathon's 7-day rental allowance. Don't miss this opportunity to own a piece of paradise in the Florida Keys. Experience the best of island living at 668 James Ave, where luxury meets waterfront charm.

668 James Ave, Marathon

$680,000
2 Beds 2 Baths 614589 MLS
Set on a rare corner waterfront lot in the heart of Boot Key Harbor, this tropical retreat blends island charm with modern comfort and effortless boating access with ample parking for both boat trailers and vehicles. With direct ocean access and deep sailboat-friendly waters, this two-bedroom home is your gateway to the ultimate Keys lifestyle—morning coffee on the dock, afternoon snorkeling runs, and sunset cocktails under the tiki. Sold fully furnished and rental-ready, it's perfect as a lucrative vacation rental or a private escape. Inside, warm cedar accents and pine siding bring a cozy coastal feel, balanced by modern upgrades like smart TVs, ceiling fans, and a Ring security system. The kitchen is built for serious cooking, featuring a propane stove, vented microwave, and refrigerator with ice maker, while the large laundry room—with brand-new washer and indoor/outdoor access—adds convenience. Even the half bath carries local flair with its ship's porthole mirror nodding to Keys nautical heritage. Outside, tropical landscaping sets the stage for fun and relaxation. Banana trees sway beside manicured planters with a water system. The tiki hut complete with a black granite bar top, fan, and string twinkle lights invites entertaining at any hour. Grill your fresh catch, rinse off in the outdoor shower, or gather at the 65-ft concrete dock to watch the harbor lights shimmer. Boaters will love the 8,000-lb lift with new Gem control box, extended courtesy dock, stainless fish-cleaning station, bait freezer, and even an antique ship's bell to mark the day's end. With quick, deep-water access to both the Atlantic and Gulf, this home captures everything that makes Keys living unforgettable boating, sunsets, and a relaxed sense of adventure. Whether you're looking to generate income or anchor your island lifestyle, this Boot Key Harbor gem is ready to welcome you home. Financing is available through local lending institute.

800 James Ave, Marathon

$775,000
3 Beds 2 Baths 612626 MLS
This home is in an excellent location on a deep water canal and Boot Key Harbor protection. Easy Boat access to Atlantic & Gulf. Walk or Bike to restaurants, beach, grocery stores and Home Depot, Boat ready with 15,000 lb. Lift on a 60' concrete seawall. This fully furnished 2 Bedroom 2 Bath home is the epitome of comfort & convenience, offering a wide range of features that cater to a relaxing and easy going lifestyle. A 3rd bedroom was converted to open social space with a Murphy Bed for additional Guest. The Home is incased in durable vinyl siding and features impact windows, providing a safe haven from the elements. The Interior has been thoughtfully upgraded,, featuring ceramic tile flooring. An open concept living/dining/kitchen that fosters a sense of unity and togetherness. The Kitchen is a Chef's delight with sleek Granit countertops, wine cooler, ample cabinet space, double pantry & stainless steel Appliances. Facing the Canal there is wall to wall Bay Windows providing full water view & sunlight. A Common Bathroom boasting a double vanity, 2 Large Bedrooms with a King bed and Bathroom in Master Suite and a Queen bed & Futon in 2nd Bedroom. Each room if fitted with window treatments & Blackouts for added privacy and comfort. Ample Closet space ensuring all your storage needs & a Washer/Dryer. For outdoor lovers the screened porch is a perfect retreat. It comes with comfortable fans for those warmer days & a built in Hot Tub for ultimate relaxation. A 2nd covered porch facing the canal with views of Boot Key Harbor & partial Sunsets. Property boast a fish cleaning station, water & electric on the Dock. An outdoor shower adds a touch of luxury to your beach days. The storage/workshop offers ample space for your tools & projects. Partially fenced, features trailer storage & excellent parking options. If you are looking for a vacation home, permanent residence or Rental Income 835 25th St. offers an affordable waterfront lifestyle that's hard to beat.

835 25th St, Marathon

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Harbor Isle (48.5) Real Estate & Homes

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