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955 122nd St, Marathon
$3,195,000
3 Beds ⋅ 2 Baths ⋅ 621904 MLS
**RARE WATERFRONT OPPORTUNITY IN EXCLUSIVE YACHT HARBOR ISLAND!** Discover one of Marathon's most desirable waterfront homesites, perfectly positioned on Vaca Cut with breathtaking sunset views and direct boating access to both the Atlantic Ocean and Gulf. Offered for sale for the first time in nearly 30 years, this oversized lot-and-a-half boasts an impressive 155 feet of water frontage, including 135 feet of brand-new 2026 seawall and a rare 20-foot-wide private boat ramp! This highly desirable feature makes the property a true boater's paradise, offering exceptional convenience and access to world-class fishing and cruising. The existing residence requires substantial renovation or redevelopment and is being offered AS-IS. The seller has building plans specifically designed for the property, or bring your own vision to life and create your dream Florida Keys waterfront estate. The expansive lot offers potential space for a resort-style pool, tiki hut, garage, RV parking, boat storage, and more, subject to applicable approvals. This remarkable homesite offers endless possibilities in one of Marathon's most sought-after oceanfront locations!

955 122nd St, Marathon
601 28th St, Marathon
$649,000
2 Beds ⋅ 2 Baths ⋅ 621823 MLS
Keep your boat out back and enjoy easy access to Boot Key Harbor from this updated two-bedroom, two-bath waterfront home in Marathon's Harbor Isle neighborhood. Approximately 53 feet of concrete seawall along a deep-water canal puts boating, fishing, and exploring the ocean and bay within easy reach. Whether you're looking for a full-time home, a personal Keys getaway, or a vacation rental opportunity, this property offers plenty of flexibility. Inside, bright living and dining spaces feature tile flooring, white ceiling beams, and large sliding glass doors that bring in natural light and frame the canal views. The kitchen offers stainless steel appliances, soft gray cabinetry, light countertops, and a textured white backsplash for a fresh coastal feel. The living area opens directly to a spacious waterfront patio and backyard, making it easy to take meals outdoors, relax beneath the palms, or gather with friends after a day on the boat. A shaded front porch, covered parking, and low-maintenance grounds add everyday convenience. With restaurants, grocery stores, parks, and Sombrero Beach nearby, this inviting canal-front home makes it easy to enjoy the Keys while offering the option to generate vacation rental income.

601 28th St, Marathon
13755 Overseas Hwy, Marathon
$1,499,000
4 Beds ⋅ 5 Baths ⋅ 621728 MLS
Existing improvements include a duplex and single-family home! A compelling investment and redevelopment opportunity in the heart of Marathon, this multi-family property offers immediate use along with significant long-term potential in one of the Florida Keys' most active markets. Fronting Overseas Highway with excellent visibility and convenient access, the property includes two concrete block buildings. One structure is configured as a three-bedroom, two-bath residence, while the second is arranged as a duplex with two efficiency studio units, each with a private bath. The property includes three residential property rights, creating flexibility for continued income-producing use or future redevelopment. For investors and developers, the location and existing configuration open the door to a variety of possibilities, whether the goal is to maintain the current multi-family setup, reposition the site, or pursue a larger development strategy. An additional opportunity exists to acquire the adjacent parcel along with submerged land rights, allowing a buyer to assemble a larger contiguous footprint and expand the potential of the overall site. Both properties are offered together under MLS number 620305. With its central Marathon location, direct Overseas Highway access, established residential use, and added development upside, this property presents a rare chance to secure a versatile piece of the Florida Keys market.

13755 Overseas Hwy, Marathon
712 26th St, Marathon
$825,000
3 Beds ⋅ 3 Baths ⋅ 621525 MLS
Some homes in the Keys prioritize the house itself, while this one focuses on the opportunities it offers. Located oceanside in Harbor Isle at mile marker 48.5, this 3-bedroom, 3-bath waterfront home provides easy access to open water. The 7-day minimum rental allowance offers flexibility for buyers who want to enjoy their Keys home while also generating rental income when they're away. With quick ocean access, waterfront living, and a prime location in the heart of Marathon, this home is an ideal choice for those seeking a convenient and enjoyable living experience, whether you're here for a week, a season, or for the long haul. Don't forget to bring your boat, the water is calling!

712 26th St, Marathon
5301 Ocean Ter Unit APT 2, Marathon
$365,000
1 Beds ⋅ 1 Baths ⋅ 620195 MLS
Welcome to your perfect waterfront retreat! This condo is located at the end of the building and has been beautifully maintained. Comes fully furnished, move-in ready and offers everything you need for comfort and convenience. Step inside to an inviting, open-concept living space that shows very well. Kitchen features quartz countertops, tasteful backsplash and new stainless steel appliances. Enjoy peaceful mornings and relaxing evenings on the screened-in porch overlooking the water, the ideal spot to unwind and take in the view. The condo's prime central location puts you just minutes away from shopping, grocery stores, dining, and your favorite food and beverage spots--everything you need is right at your doorstep. Bonus storage closet outside entrance for your gear. Complex offers heated swimming pool, outdoor common area, on-site laundry and boat dockage. Easy keys living awaits! Call Today!

5301 Ocean Ter Unit APT 2, Marathon

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