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Main Key, Barnes Sound, Key Largo, FL 33037

$5,900,000
Property Type: Vacant Land Lot Size (sq. ft.): 6,337,980 Status: Active
Current Price: $5,900,000 List Date: 9/04/2025 Last Modified: 10/03/2025

Description

MAIN KEY is a 145.5-acre, private island, with pristine, white sandy beaches located in Barnes Sound, Ocean Reef area, in Monroe County, The Florida Keys. There is approximately 12 acres of upland elevation where a structure could be built and an active dock and lift permit to build on the East of the SE beach, from the Government Lot, with plans for a 295' long dock with a 20 ft platform for a lift and a 30' boat slip. A 2nd dock permit is being applied for on the South side of Main Key, which will be 135 feet with a 30 to 40 ft platform and seven heavy pilings to moor a large vessel or work barge up to 100 feet in length. There was a house built on the island at one time. ''The Tides of Main Key'' is well known in South Florida in Marine Weather forecasts on TV, Radio, NOAA weather, or online for tides in the Upper Keys and Key Largo. The tide station at Main Key was established in the 1930's and is still reported in the tide forecasts. Before online and smartphones, ''The tides at Main Key in Barnes Sound'' was a frequently reported tide station for the western bay waters of North Key Largo and is still reported online for projected tides as one of the official tide stations to this day.

More Information MLS# 616391

Contract Information

Listing Board: Florida Keys ROGO Exempt: Yes Limited Representation: No As is Rght to Inspct: Yes Potential Short Sale: No Bank Owned: No Species List: Yes Current Price: $5,900,000 Listing Date: 2025-09-03 List Price: $5,900,000

Location, Tax & Legal

City: KEY LARGO Off Shore Island: Yes Mile Marker: 114 Marathon Neighborhood: N/A Side: Ocean Flood Zone: AE12, VE14 Alternate Key #: 1105589 Add'l Parcel #1: 00091630-000000 Parcel #: 00091640-000000 Zoning: OS - Offshore Island District Deed Restrictions: Unknown Legal: See Documents Tab Taxes: 97.01 Tax Year: 2024 Street Name: Main Key, Barnes Sound Key/Island: Key Largo State/Province: FL Zip Code: 33037 County: Monroe Subdivision: Ocean Reef Club (905.0) Area: 28 - Key Largo N of MM 107 Incl Ocean Reef

General Property Description

Realtor.COM Type: Vacant Land Waterfront: Yes Control Depth: 6 Lot SqFt: 6337980 Lot Dimensions: 145.5 Acres Lot Sqft Source: Survey Total Lots: 2 Survey Available: Yes

Remarks & Misc

Remarks – Consumer: MAIN KEY is a 145.5-acre, private island, with pristine, white sandy beaches located in Barnes Sound, Ocean Reef area, in Monroe County, The Florida Keys. There is approximately 12 acres of upland elevation where a structure could be built and an active dock and lift permit to build on the East of the SE beach, from the Government Lot, with plans for a 295' long dock with a 20 ft platform for a lift and a 30' boat slip. A 2nd dock permit is being applied for on the South side of Main Key, which will be 135 feet with a 30 to 40 ft platform and seven heavy pilings to moor a large vessel or work barge up to 100 feet in length. There was a house built on the island at one time. ''The Tides of Main Key'' is well known in South Florida in Marine Weather forecasts on TV, Radio, NOAA weather, or online for tides in the Upper Keys and Key Largo. The tide station at Main Key was established in the 1930's and is still reported in the tide forecasts. Before online and smartphones, ''The tides at Main Key in Barnes Sound'' was a frequently reported tide station for the western bay waters of North Key Largo and is still reported online for projected tides as one of the official tide stations to this day. Directions: Approximately 4 miles North of Gilbert's Marina, by boat, in Barnes Sound.

Assoc/Misc Info

Mandatory Home Owners Asc: No 1st Right of Refusal: No

Miscellaneous Info

Mobile Home Lot: No

Dockage

Dock Permit: Yes

Tax Exemptions

None: 1

Waterfront

Beach Front: 1 Oceanfront: 1

Waterview

Ocean View: 1

Location/Site

Water Frontage: 1

Existing Utilities

None: 1

BuildingPermit

No Permit: 1

Land Size

10 or more Acres: 1

Terms

Buyer Obtain Finance: 1

Title

Title Ins - Buyer: 1

Financial Status

Bank Owned: No Potential Short Sale: No

Status Change Info

Status: Active

Property Features

Tax Exemptions: None Waterfront: Beach Front; Oceanfront Waterview: Ocean View Existing Utilities: None BuildingPermit: No Permit Land Size: 10 or more Acres Terms: Buyer Obtain Finance Title: Title Ins - Buyer
Listing Office: American Caribbean Real Estate, Christie's International Real Estate
Last Updated: October - 03 - 2025
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.