Welcome to 4 Sandpiper Lane, a rare waterfront treasure in the heart of Marathon, FL, offering breathtaking open water views and incredible potential. This exceptional property features a spacious 2-bedroom, 2-bathroom layout upstairs, along with a versatile 3-bedroom, 1-bathroom ground-level space. Two of the downstairs bedrooms have private entry to the outdoors, providing added convenience and privacy for guests or family members. Upstairs, the master bedroom boasts private access to the balcony, allowing you to wake up to stunning sunrises over the ocean. The expansive balcony is perfect for enjoying serene sunsets and the calming ocean breeze. The property is situated on an impressive lot with 297 feet of seawall, offering direct water access for boating, fishing, or simply enjoying the coastal lifestyle. Located just one block from the beach, it combines the best of waterfront living with proximity to pristine sandy shores. Additionally, this property presents a unique development opportunity with enough density for up to three homes, making it a valuable investment in paradise. Whether you're seeking a tranquil retreat or a development project with limitless possibilities, 4 Sandpiper Lane is a true Florida Keys gem. Schedule your private tour today!