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$11,500,000
Marathon, FL 33050
MLS# 618083
1 / 50
Property 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.
Details
Maps
Contract Information
Listing Board: Florida Keys
Limited Representation: No
As is Rght to Inspct: Yes
Potential Short Sale: No
Bank Owned: No
Current Price: $11,500,000
Listing Date: 2026-01-08
List Price: $11,500,000
Location, Tax & Legal
Unit #: 0
City: MARATHON
Off Shore Island: No
Mile Marker: 58.9
Marathon Neighborhood: Grassy Key
Side: Ocean
Alternate Key #: 1457736
Add'l Parcel #1: 00374660-000000
Parcel #: 00374650-000000
Add'l Parcel #2: 00374670-000000
Zoning: MU - Mixed Use Commercial Mixed Use
Legal: BK 58 LT 10 CRAINS SUBD PB1-51 OF GRASSY KEY OR135-95-96 OR140-29-30 OR407-765-768 OR474-436-438 OR683-887 OR685-713 OR
Taxes: 11195.1
Tax Year: 2022
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
Waterfront: Yes
Control Depth: 0
Lot Size: 103,025
Lot SqFt: 103025
SqFt Source: Property Data Card
Style: Commercial
Remarks & Misc
Remarks – Consumer: 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.
Association Info
Mandatory Home Owners Asc: No
1st Right of Refusal: No
Type
Other Comrcl Style: 1
Fee Includes
None: 1
Dockage
None: 1
Appliances
No Appliances: 1
Waterfront
Oceanfront: 1
Waterview
Ocean View: 1
Construction
Other: 1
Land Size
5 Less Than 10 Acres: 1
Utilities
Sewer Available: 1
Financial Status
Bank Owned: No
Potential Short Sale: No
Status Change Info
Status: Active
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
Listing Office: Compass Florida - Bayshore Drive
Last Updated: January - 12 - 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.