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    Long Key, FL Commercial Real Estate for Sale

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    Private Island with Development Potential
    $5,750,000

    Private Island with Development Potential

    62250 Overseas Highway, Conch Key, FL 33050

    Rare Florida Keys island with entitlements and development flexibility.

    • Rare Private Island: Own a private island in the Florida Keys with a white sandy beach.
    • Development Flexibility: Zoned MU (Mixed Use) allowing for various development options including boutique hotel, restaurant, campground, or upscale RV park.
    • Valuable Transient Licenses: Includes 16 Monroe County transient licensed entitlements.
    • Extensive Water Frontage: Offers hundreds of linear feet of water frontage, a deep‑water boat basin, and concrete seawall with owned bay bottom for adding boat docks and aqua lodges.
    • Existing Income Potential: Features three existing 2BR/2BA vacation rental cottages and a pool.
    Updated: Mar 31
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    Conch Key Fish House Property
    $2,950,000

    Conch Key Fish House Property

    15 Seaview Avenue, Conch Key, FL 33050

    Fish house with blast freezer and dockage for 14 boats.

    • Dockage for 14 boats with active permit to build a 612 sq ft dock (permit valid until early 2026).
    • Includes a 1000 sq ft fish house with a 20 ft blast freezer and cooler/freezer.
    • Enhanced security with a surveillance system featuring 20 cameras.
    • Two 1000 lb ice machines (Hoshizaki, 1 icubed ice, one flake).
    • Multiple container boxes (2‑20 ft, 1‑30 ft) and a Ted shed for storage.
    Updated: Mar 30
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    Waterfront Land with Approved Plans
    $599,000

    Waterfront Land with Approved Plans

    Vacant land with new seawall and approved building plans.

    93 N Conch Avenue, Conch Key, FL 33050
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    Conch Key Vacant Land Parcel
    $499,000

    Conch Key Vacant Land Parcel

    4500 SF parcel with development potential in Conch Key.

    77 S 77 Conch Avenue, Conch Key, FL 33050
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    Hotel/Motel,Marina,Mobile Home Park - Conch Key, FL
    $5,750,000
    826 SF

    Hotel/Motel,Marina,Mobile Home Park - Conch Key, FL

    Rare Florida Keys island with entitlements and development flexibility.

    62250 Overseas Hwy Little Conch Is, Conch Key, FL 33050
    View details
    Based on your search, we've compiled 24 Potential Opportunities for your consideration. Besides 5 Active listings in Long Key, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 11 Off-Market properties to explore as potential leads, plus 4 Land Listings that present a potential for development.

    Explore Opportunities in Nearby Cities

    Here are 4 Similar properties we found in Nearby Locations for your consideration.

    Oceanfront Development Opportunity in Marathon
    $10,500,000

    Oceanfront Development Opportunity in Marathon

    Rare oceanfront land for luxury residential development in Florida Keys.

    57478 Overseas Highway, Marathon, FL 33050
    View details
    Oceanfront Development Opportunity in Marathon
    $10,500,000

    Oceanfront Development Opportunity in Marathon

    Rare 6-acre oceanfront land parcel in the Florida Keys.

    57478 Overseas Highway, Marathon, FL 33050
    View details
    Waterfront Property with Fish House
    $2,999,000
    1,000 SF

    Waterfront Property with Fish House

    Waterfront property featuring a fish house and dockage.

    Marathon, FL 33050
    View details
    Grassy Key Marina Investment
    $9,900,000
    22,000 SF

    Grassy Key Marina Investment

    Marina with rental income, apartments, and potential for growth.

    59073 Overseas Hwy, Marathon, FL 33050
    View details

    Potential Development Sites for Consideration

    Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

    Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

    Waterfront Commercial Land in Marathon
    $3,100,000
    80,400.00 Acres

    Waterfront Commercial Land in Marathon

    Rare waterfront property on Overseas Highway, ready for redevelopment.

    13759 Overseas Highway, Marathon, FL 33050
    View details
    Highway Frontage Development Opportunity
    $3,450,000

    Highway Frontage Development Opportunity

    Prime commercial land with highway frontage and ocean access.

    8501 Overseas Highway, Marathon, FL 33050
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    Gulf Front Estate in Marathon
    $9,950,000

    Gulf Front Estate in Marathon

    3.86-acre mixed-use commercial property with waterfront and highway frontage.

    6500-6600 Overseas Highway, Marathon, FL 33050
    View details
    Commercially Zoned Parcel on A1A
    Contact for pricing

    Commercially Zoned Parcel on A1A

    0.556±AC commercially zoned parcel with frontage to FL SR A1A.

    5994 Overseas Hwy, Marathon, FL 33050
    View details

    Explore Off-Market Properties in Long Key, FL

    Consider similar Off-Market properties in Long Key, FL. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

    68650 Overseas Hwy

    68650 Overseas Hwy

    MIXED USE (COMMERCIAL/INDUSTRIAL) • 3,520 SF
    Value Estimation
    $1,325,000
    68650 Overseas Hwy, Long Key, FL 33001
    View details
    68250 Overseas Hwy

    68250 Overseas Hwy

    HOTEL/MOTEL • 691 SF
    Value Estimation
    $595,000
    68250 Overseas Hwy, Long Key, FL 33001
    View details
    68100 Overseas Hwy

    68100 Overseas Hwy

    MIXED USE (COMMERCIAL/INDUSTRIAL) • 6,544 SF
    Value Estimation
    $1,010,000
    68100 Overseas Hwy, Long Key, FL 33001
    View details
    70001 Overseas Hwy

    70001 Overseas Hwy

    PARKING LOT • 5,378 SF
    Value Estimation
    $1,480,000
    70001 Overseas Hwy, Long Key, FL 33001-0005
    View details
    65651 Overseas Hwy

    65651 Overseas Hwy

    HOTEL/MOTEL • 2,854 SF
    Value Estimation
    $1,835,000
    65651 Overseas Hwy, Long Key, FL 33001
    View details
    68460 Overseas Hwy

    68460 Overseas Hwy

    HOTEL/MOTEL • 3,240 SF
    Value Estimation
    $1,285,000
    68460 Overseas Hwy, Long Key, FL 33001
    View details
    Long Key, FL 33001

    Long Key, FL 33001

    VACANT COMMERCIAL LAND • 0.19 Acres
    Value Estimation by Request
    Long Key, FL 33001
    View details
    68500 Overseas Hwy

    68500 Overseas Hwy

    HOTEL/MOTEL • 7,174 SF
    Value Estimation
    $4,275,000
    68500 Overseas Hwy, Long Key, FL 33001-0007
    View details
    68450 Overseas Hwy

    68450 Overseas Hwy

    RESTAURANT • 2,891 SF
    Value Estimation by Request
    68450 Overseas Hwy, Long Key, FL 33001
    View details
    68200 Overseas Hwy

    68200 Overseas Hwy

    MIXED USE (COMMERCIAL/INDUSTRIAL) • 1,856 SF
    Value Estimation by Request
    68200 Overseas Hwy, Long Key, FL 33001
    View details
    Long Key, FL 33001

    Long Key, FL 33001

    VACANT COMMERCIAL LAND • 0.12 Acres
    Value Estimation by Request
    Long Key, FL 33001
    View details

    Long Key, FL Commercial Real Estate Investment Opportunities Market Analysis

    Explore 16 commercial real estate for sale in Long Key, FL, showcased through 5 active listings on our real estate platform. These investment opportunities span a total of 0 square feet of properties for sale, with an estimated market value of $0.00.

    Sale prices for business properties in Long Key, FL start at $0.00, averaging $0.00, and reaching up to $0.00 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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    Most Searched ZIP Codes in Long Key, FL

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