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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

    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.
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    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#: 616391MLS LogoOriginating 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
    DateEventPrice
    9/4/2025Listed for sale$5,900,000
    Source: FLKMLS #616391 Report a problem

    Public tax history

    Public tax history
    Tax history is unavailable.

    BuyAbility℠ payment

    Estimated monthly payment
    All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
    HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
    Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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    Climate risks

    Neighborhood: 33037

    Nearby schools

    GreatSchools rating
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