Main Key, Barnes Sound, Key Largo, FL 33037
$4,695,000
Property Type:
Vacant Land
Lot Size (sq. ft.):
6,337,980
Status:
Active
Current Price:
$4,695,000
List Date:
9/04/2025
Last Modified:
4/22/2026
Listing Details MLS# 616391
Location, Tax & Legal
- 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
- 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
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
General Property Description
- Realtor.COM Type
- Vacant Land
- Waterfront
- Yes
- Control Depth
- 6
- Lot Dimensions
- 145.5 Acres
- Lot SqFt
- 6337980
- Lot Sqft Source
- Survey
- Total Lots
- 2
- Survey Available
- Yes
Miscellaneous Info
- Mobile Home Lot
- No
Dockage
- Dock Permit
- Yes
More Information
Financial Status
- Bank Owned
- No
- Potential Short Sale
- No
Remarks & Misc
- Remarks – Consumer
- MAIN KEY is a 145.5-acre private island with over a mile of pristine white sandy beaches on its east shoreline in Barnes Sound, Monroe County, FL. Its western and southern shoreline of over 4 miles of Mangroves reaching 30 to 50 feet tall provides a rookery that teams with gamefish, shellfish, sea mammals, and tropical birds. All owned by a TIFF Deed. With 12 upland acres, a substantial structure could be built with no ROGO requirements. In the 1930's and 40's, there were 3 large structures on the SE Government Lot area. A new dock permit with lift, platform, and mooring slip exists for the SE beach off the old homesite. An additional second permit is being applied for the south side of Main Key that will be 135 ft with a 40 ft platform and seven heavy pilings to moor a large vessel of up to 100 ft in length. A tide station was established by the USGS, later NOAA in the 1930's. 'The Tides at Main Key' was well known in Marine Weather forecasts on South Florida TV and NOAA Weather Radio for the Upper Keys and Florida Bay. Please contact the listing agents for more detailed information and documentation.
- 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
Tax Exemptions
- None
- Yes
Waterfront
- Beach Front
- Yes
- Oceanfront
- Yes
Waterview
- Ocean View
- Yes
Location/Site
- Water Frontage
- Yes
Existing Utilities
- None
- Yes
BuildingPermit
- No Permit
- Yes
Land Size
- 10 or more Acres
- Yes
Terms
- Buyer Obtain Finance
- Yes
Title
- Title Ins - Buyer
- Yes
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: April - 22 - 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.