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57478 Overseas Highway, Marathon, FL 33050

$10,500,000
Property Type: Land & Docks Lot Size (sq. ft.): 103,025 Status: Active
Current Price: $10,500,000 List Date: 1/12/2026 Last Modified: 5/15/2026

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# A11940104

Contract Information

Comp Sale YN: No LP/Acre: 1750000 LP/Frontage: 29166.67 Listing Date: 2026-01-12 Status: Active Original List Price: 11500000 List Price: $10,500,000 Current Price: $10,500,000

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: 101.92 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

Office/Member Information

DXORIGMLSID: SEF

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

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

Financial Information

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

Status Change Information

Major Change Timestamp: 2026-03-12T21:54:24Z Major Change Type: Price Reduced Price Change Timestamp: 2026-03-12T21:54:24Z 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 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

Documents

Listing Office: Compass Florida, LLC
Last Updated: May - 15 - 2026
57478 Overseas Highway, Marathon, FL 33050- MLS# A11940104
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