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Main Key Barnes Sound Key Largo, FL 33037

View on Map
New
For Sale
$4,995,000

Vacant Land - Key Largo, FL

Lot size:
145.50 Acres
Added:
Apr 3, 2026
Days on Market:
4
Last Refresh:
Apr 6 at 2:06 am

Property Features for Main Key Barnes Sound

General Information

Property type
Land
Property subtype
Other
Zoning
OS - Offshore Island District
Standard status
Active
APN
00091640-000000
Lot size
145.50 Acres

Taxes and HOA fees

Tax Year
2024
Tax Annual Amount
97.01

Utilities

Water front features
Beach Front, Oceanfront, Waterfront
Water front
1

Building Details

Architectural style
Other

We can help!

Listing Contact
KELLY K SHAW PA

Listing agent KELLY K SHAW PA License #0583328

Listing office American Caribbean Real Estate, Christie's International Real Estate 81800 Overseas Highway, Islamorada, FL

Listing date Apr 3, 2026

MLS# 616391 Listing URL

Copyright © 2026 Florida Keys Board of REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.


Overview

Private Island with Sandy Beaches

Main Key is a 145.5-acre private island located in Barnes Sound, Monroe County, FL. The island features over a mile of white sandy beaches along its eastern shoreline. The western and southern shorelines, spanning over 4 miles, are characterized by mangroves reaching heights of 30 to 50 feet, creating a habitat for gamefish, shellfish, sea mammals, and tropical birds. The property is owned by a TIFF Deed. With 12 upland acres, a substantial structure could be constructed without ROGO requirements. Historically, in the 1930s and 40s, there were 3 large structures on the SE Government Lot area. A new dock permit includes a lift, platform, and mooring slip for the SE beach off the old homesite. An additional permit is being applied for on the south side of Main Key for a 135 ft dock 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 1930s. 'The Tides at Main Key' was a well-known reference in Marine Weather forecasts on South Florida TV and NOAA Weather Radio for the Upper Keys and Florida Bay. The zoning is OS - Offshore Island District.
Property Profile Insight Report Location Intelligence

Current Use by Public Records

Waterfront Land

Map

City
Key Largo
County
Monroe
State
Florida
Longitude
-80.3918
Latitude
25.2553

FAQs

What type of property is this?
Waterfront Land - 145.5-acre private island with over a mile of beaches.
Where is this waterfront land located?
The property is located at Main Key Barnes Sound Key Largo, FL.
What is the asking price?
The asking price for this property is $4,995,000.
What are key features of this property?
This property features: Private 145.5‑acre island with over a mile of pristine white sandy beaches.; **Tiff Deed ownership with no ROGO requirements for building a substantial structure on 12 upland acres.**; Over 4 miles of mangrove shoreline teeming with wildlife, including gamefish, shellfish, sea mammals, and tropical birds.
More about this property
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