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57478 Overseas Highway 0, Marathon, FL 33050
$11,500,000
Property Type:
Commercial Sale
Lot Size (sq. ft.):
103,025
Status:
Active
Current Price:
$11,500,000
List Date:
1/12/2026
Last Modified:
1/14/2026
Description
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.
More Information MLS# 618083
Contract Information
Current Price: $11,500,000
Listing Date: 2026-01-08
Listing Board: Florida Keys
List Price: $11,500,000
Limited Representation: No
As is Rght to Inspct: Yes
Potential Short Sale: No
Bank Owned: No
Location Tax Legal
Street #: 57478
Street Name: Overseas
Street Suffix: Highway
Key/Island: Marathon
State/Province: FL
Zip Code: 33050
Subdivision: Grassy Key (58.9)
County: Monroe
Area: 19 - Crawl Key & Grassy Key
General Property Description
Realtor.COM Type: Commercial
Style: Commercial
Lot Size: 103,025
Lot SqFt: 103025
Waterfront: Yes
SqFt Source: Property Data Card
Status Change Info
Status: Active
Association Info
Mandatory Home Owners Asc: No
1st Right of Refusal: No
Financial Status
Bank Owned: No
Potential Short Sale: No
Property Features
Type: Other Comrcl Style
Waterfront: Oceanfront
Waterview: Ocean View
Dockage: None
Utilities: Sewer Available
Appliances: No Appliances
Construction: Other
Land Size: 5 Less Than 10 Acres
Fee Includes: None
Documents
Listing Office: Compass Florida - Bayshore Drive
Last Updated: January - 14 - 2026
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.

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