New homes for sale & real estate in Marathon, FL

New Home for sale in Marathon, FL:

* JUST COMPLETED SEPTEMBER 2025 * * SELLER FINANCING AVAILABLE * Nestled on the exclusive private gated island of Sunrise Isles in Marathon, Florida Keys. This magnificent new construction oceanfront estate redefines luxury living. With only 20 residences on this private island, you'll experience a rare blend of privacy and community, surrounded by the serene beauty of the Keys. This exquisite 5-bedroom, 4-bathroom residence spans approximately 3,500 square feet of meticulously crafted living space, designed to capture stunning ocean views from every angle. The open-concept single floor plan seamlessly connects a gourmet kitchen, spacious dining, and living areas, with floor-to-cei

New Home for sale in Marathon, FL:

Weekly rentals permitted! SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides se

New Home for sale in Marathon, FL:

New home located in the very desirable Crane Point. You will have access to a boat ramp and beach at the end of your street for easy boat and kayak launching. Sliding glass door to 2nd floor deck with views of the gulf Synthetic decking Hardy Board siding Metal Roof Impact windows and doors Split Floor plan. Cathedral ceilings Upgraded bathrooms Custom counter tops Stainless steel appliances Ceiling Fans

New Home for sale in Marathon, FL:

SeaGlass Cove is an exclusive gated community nestled in the heart of the Florida Keys. This rare enclave features 14 brand-new luxury residences, each offering sweeping views of the Atlantic Ocean. This unit features 5 bedrooms and 4.5 baths. Residents will enjoy world-class amenities, including a resort-style pool, pickleball court, sandy beach, and the convenience of flexible weekly rentals. The first level features a private two-car garage and a covered cabana with generous outdoor living areas that flow seamlessly to the beach & pool deck. Upstairs, an open-concept layout connects the gourmet kitchen, dining area, and great room—all oriented toward breathtaking ocean views.