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    Long Key, FL Duplexes for Sale

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    Beachfront Multifamily Investment Opportunity
    $3,899,000
    1,647 SF

    Beachfront Multifamily Investment Opportunity

    65620 Overseas Highway, Long Key, FL 33001

    Iconic Long Key beachfront duplex with nightly rental potential.

    • Income‑producing duplex with nightly rental potential on a private, white sandy beach
    • Enjoy 221' of beachfront property with unobstructed Atlantic Ocean views, including both sunrise and sunset
    • Located at the southern tip of Long Key, near Long Key State Park and the Viaduct, a world‑renowned Tarpon fishery
    • Historically significant property, the former site of Henry Flagler's Long Key Fishing Camp, once home to Zane Grey
    • Shallow, tranquil waters ideal for snorkeling, fishing, and relaxation, complemented by numerous tiki huts for shaded retreats
    Updated: Sep 3, 2025
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    Based on your search, we've compiled 5 Potential Opportunities for your consideration. Besides 1 Active listings in Long Key, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Explore Opportunities in Nearby Cities

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

    Updated Duplex Near Harry Harris
    $799,000
    1,496 SF

    Updated Duplex Near Harry Harris

    Legal duplex near oceanfront park, updated with modern amenities.

    102 Harry Harris Drive, Key Largo, FL 33070
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    Oceanfront Multifamily with Rental Potential
    $2,345,000
    1,716 SF

    Oceanfront Multifamily with Rental Potential

    Oceanfront multifamily property with deepwater dockage and nightly rental approval.

    127 Seaside Avenue, Key Largo, FL 33037
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    Multifamily Complex in Marathon, Florida
    $1,800,000
    3,017 SF

    Multifamily Complex in Marathon, Florida

    Multifamily complex with redevelopment potential in a high-demand location.

    13755 Overseas Highway, Marathon, FL 33050
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    Charming Duplex in Little Venice
    $699,000
    907 SF

    Charming Duplex in Little Venice

    Versatile duplex in Marathon, Florida Keys, ideal for living/investment.

    487 116th Street, Marathon, FL 33050
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    Long Key, FL Duplexes Investment Opportunities Market Analysis

    Explore 1 duplexes for sale in Long Key, FL on our real estate platform. These investment opportunities span a total of 27,007 square feet of properties for sale, with an estimated market value of $3,899,000.

    Sale prices for duplexes in Long Key, FL start at $3,899,000, averaging $3,899,000, and reaching up to $3,899,000 — 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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