57478 Overseas Highway 0, Marathon, FL 33050
$10,500,000
Property Type:
Commercial Sale
Lot Size (sq. ft.):
103,025
Status:
Active
Current Price:
$10,500,000
List Date:
1/12/2026
Last Modified:
3/20/2026
Overview
Description
...
(Read more)
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.
Listing Details MLS# 618083
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
- Unit #
- No
- 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
Contract Information
- Listing Board
- Florida Keys
- Limited Representation
- No
- As is Rght to Inspct
- Yes
- Potential Short Sale
- No
- Bank Owned
- No
General Property Description
- Realtor.COM Type
- Commercial
- Style
- Commercial
- Lot SqFt
- 103025
- Waterfront
- Yes
- SqFt Source
- Property Data Card
- Control Depth
- 0
Association Info
- Mandatory Home Owners Asc
- No
- 1st Right of Refusal
- No
Financial Status
- Bank Owned
- No
- Potential Short Sale
- No
More Information
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.
- Directions
- HAVE ACCESS TO AVAILABLLE BUILDING RIGHTS. CALL FOR MORE INFORMATION.
Type
- Other Comrcl Style
- Yes
Fee Includes
- None
- Yes
Dockage
- None
- Yes
Appliances
- No Appliances
- Yes
Waterfront
- Oceanfront
- Yes
Waterview
- Ocean View
- Yes
Construction
- Other
- Yes
Land Size
- 5 Less Than 10 Acres
- Yes
Utilities
- Sewer Available
- Yes
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 - Miami Beach
Last Updated: March - 20 - 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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