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  3. 57478 Overseas Highway Marathon, FL - 33050
  • MLS® #: A11940104
  • 57478 Overseas Highway
  • Marathon, FL 33050
  • $10,500,000
  • 6.00 Acres
  • Land

Rare oceanfront development opportunity in the heart of the Florida Keys.Encompassing nearly 6 acres of pristine oceanfront land in Grassy Key, this exceptional parcel presents an ideal canvas for developers seeking to create luxury residential units with direct oceanfront and beach access.Surrounded by unspoiled natural beauty and tranquil beaches, the property offers immediate proximity to shopping, fine dining, spas, marinas, and world-class boating. Residents will enjoy unparalleled access to deep-sea fishing, scuba diving, snorkeling, and vibrant coral reefs, all set against the backdrop of the Keys’ iconic turquoise waters.Located in Marathon, often referred to as the Heart of the Florida Keys, the site benefits from a highly desirable central Keys location, conveniently positioned between the Upper Keys—such as Islamorada—and the Lower Keys, including Key West. Marathon is known for its rich maritime history, local airport, and accessibility, serving as a central hub comprising islands such as Vaca Key, Duck Key, and Grassy Key.A truly rare offering combining scale, location, and oceanfront presence—an exceptional opportunity to develop a legacy project in one of Florida’s most coveted coastal destinations.Please read the broker's remarks for detailed information on this offering.

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Essential Information

  • MLS® #A11940104
  • Price$10,500,000
  • CAD Dollar$14,928,039
  • UK Pound£7,841,495
  • Euro€9,180,696
  • Acres6.00
  • TypeLand
  • Sub-TypeUnimproved Land
  • StatusActive
  • HOPANo Hopa

Community Information

  • Address57478 Overseas Highway
  • Area5940 - Other Florida County
  • SubdivisionCRAINS SUBD
  • CityMarathon
  • CountyMonroe
  • StateFL
  • Zip Code33050

Amenities

  • UtilitiesNone, Other, Sewer Available
  • ViewBeach
  • Is WaterfrontYes

Waterfront

Deeded Beach Access, Ocean Access, Other, Ocean Front

School Information

  • ElementaryStanley Switlik
  • MiddleMarathon
  • HighCoral Shores
  • Office: Compass Florida, Llc

Property Location

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57478 Overseas Highway on www.jupiteroceanfronthomes.us

Offered at the current list price of $10,500,000, this home for sale at 57478 Overseas Highway features bedrooms and 0 bathrooms. This real estate listing is located in CRAINS SUBD of Marathon, FL 33050 . 57478 Overseas Highway is listed under the MLS ID of A11940104 and has been available through www.jupiteroceanfronthomes.us for the Marathon real estate market for 176 days.

All listings featuring the BMLS logo are provided by Beaches MLS Inc. Copyright 2026 Beaches MLS. This information is not verified for authenticity or accuracy and is not guaranteed.
© 2026 Beaches Multiple Listing Service, Inc. All rights reserved.

Listing information last updated on July 7th, 2026 at 7:29am CDT.