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.
Lot/land
$5,900,000
Main Key Barnes Sound, Key Largo, FL 33037
--beds
--baths
145.5Acres
Unimproved Land
Built in ----
145.5 Acres Lot
$-- Zestimate®
$--/sqft
$-- HOA
What's special
- 100 days |
- 953 |
- 55 |
Zillow last checked: 8 hours ago
Listing updated: October 03, 2025 at 04:44am
Listed by:
KELLY K SHAW PA 305-664-7303,
American Caribbean Real Estate, Christie's International Real Estate,
Trent Michael Philip Shaw, PA 305-664-7344,
American Caribbean Real Estate, Christie's International Real Estate
Source: FLKMLS,MLS#: 616391
Originating MLS: Florida Keys
Facts & features
Property
Features
- Has view: Yes
- View description: Ocean
- Water view: Ocean
- Waterfront features: Oceanfront, Beach Front, Waterfront, Water Frontage, Dock Permit: Yes
Lot
- Size: 145.5 Acres
- Dimensions: 145.5 Acres
- Features: 10 or more Acres
Details
- Additional parcels included: 00091630000000
- Parcel number: 00091640000000
- Zoning: OS
- Zoning description: Offshore Island District
Utilities & green energy
- Utilities for property: None
Community & HOA
Community
- Subdivision: Ocean Reef Club (905.0)
HOA
- Has HOA: No
Location
- Region: Key Largo
Financial & listing details
- Annual tax amount: $97
- Date on market: 9/4/2025
- Listing terms: Buyer Obtain Finance
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 9/4/2025 | Listed for sale | $5,900,000 |
Source: | ||
Public tax history
Public tax history
Tax history is unavailable.BuyAbility℠ payment
Estimated monthly payment
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Neighborhood: 33037
Nearby schools
GreatSchools rating
- 8/10Key Largo SchoolGrades: PK-8Distance: 5.9 mi
- 4/10Coral Shores High SchoolGrades: 9-12Distance: 18.8 mi
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