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$7,000,000
57478 Overseas Highway
Marathon, FL 33050
MLS# A11940104



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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.

Details
Maps
Contract Information
Comp Sale YN: No
LP/Acre: 1166666.67
LP/Frontage: 19444.44
Listing Date: 2026-01-12
Status: Active
Original List Price: 11500000
List Price: $7,000,000
Current Price: $7,000,000
Location and Legal
County Or Parish: Monroe
County Parish Name: Monroe
City Name: Marathon
Postal Zip: 33050
Geographic Area: Other
Lot/Track Number: 103,025
Flood Zone: VE,AE
Country: United States
Street Number: 57478
Street Name: Overseas
Street Suffix: Highway
State Or Province: FL
Postal Code: 33050
Subdivision Name: CRAINS SUBD
Area: 5940 - Other Florida County
Elementary School: Stanley Switlik
Middle Or Junior School: Marathon
High School: Coral Shores
Parcel Number: 00374650000000
Zoning: SC
General Property Information
Number Of Lots: 3
Lot Size Dimensions: 103,025
Lot Depth: 465
Lot Frontage: 360
LP/SqFt: 67.94
Property Sub Type: Unimproved Land
Lot Size Acres: 6
Lot Size Square Feet: 103025
Additional Parcels YN: 1
Additional Parcels Description: 3rd Parcel ID 00374670-000000, 2nd Parcel ID 00374660-000000
Waterfront YN: 1
Financial Information
Estimated Monthly Assoc Recurring Fee: 0
Tax Year: 2025
Tax Annual Amount: 4222
Tax Legal Description: 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 OR908-1005 OR1572-584 O
Office/Member Information
DXORIGMLSID: SEF
Auction Terms
Non Published Reserve: Yes
Special Listing Conditions
Auction: 1
Comprehensive Plan Use
Other: 1
Current Use
Multi-Family: 1
Unimproved: 1
Environmental Audit
Unknown: 1
Possession
Close Of Escrow: 1
Special Information
City Jurisdiction: 1
Utilities
Sewer Available: 1
None: 1
Other: 1
Water Access
Deeded Beach Access: 1
Ocean Access: 1
Other: 1
Water View
Beach: 1
Listing Terms
Cash: 1
Conventional: 1
Road Frontage Type
Main Thoroughfare: 1
Water Source
Public: 1
Waterfront Features
Ocean Front: 1
Income and Expenses
Inc/Exp Statement Period: 00
Showing Requirements
Call Listing Agent: 1
Price Calculations
Current Price To SqFt: 26.78
Section Details
Parcel Number MLX: 650
Acreage Description
2 To Less Than 3 Acre Lot: 1
3 To Less Than 4 Acre Lot: 1
4 To Less Than 5 Acre Lot: 1
5 To Less Than 10 Acre Lot: 1
10 Or More Acre Lot: 1
Status Change Information
Major Change Timestamp: 2026-07-08T23:34:05Z
Major Change Type: Price Reduced
Price Change Timestamp: 2026-07-08T23:34:05Z
Status Change Date: 2026-01-12
Originating Details
Originating System Key: 424991684
Originating System ID: M00000151
Property Features
Comprehensive Plan Use: Other
Current Use: Multi-Family; Unimproved
Environmental Audit: Unknown
Possession: Close Of Escrow
Special Information: City Jurisdiction
Special Listing Conditions: Auction
Utilities: Sewer Available; None; Other
Listing Terms: Cash; Conventional
Road Frontage Type: Main Thoroughfare
Water Access: Deeded Beach Access; Ocean Access; Other
Water Source: Public
Water View: Beach
Waterfront Features: Ocean Front
Showing Requirements: Call Listing Agent
Acreage Description: 2 To Less Than 3 Acre Lot; 3 To Less Than 4 Acre Lot; 4 To Less Than 5 Acre Lot; 5 To Less Than 10 Acre Lot; 10 Or More Acre Lot

IDX
Listing Office: Compass Florida, LLC

Last Updated: July - 24 - 2026

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