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    Conch Key, FL Duplexes for Sale

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    Marathon, FL Islamorada, FL Duck Key, FL
    Oceanfront Vacation Rental Duplex
    $3,899,000
    1,647 SF
    Oceanfront Vacation Rental Duplex

    65620 Overseas Highway, Long Key, FL 33001

    Oceanfront duplex on a private beachfront with multiple development rights and space currently used as a nightly rental.
    • Ocean front property with 221 ft of private white sand beach and unobstructed Atlantic Ocean views
    • Currently operating as a nightly vacation rental; legal duplex with 4 bedrooms and 2 bathrooms
    • Two development rights associated with the legal duplex, plus a third development right for an accessory structure
    • Frame construction with central heating and central air; metal roof
    • Interior features include built‑in cabinets and granite countertops; tile flooring
    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 Conch Key, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Opportunities in Nearby Cities

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

    Waterfront Duplex with Rental Potential
    $1,849,000
    2,540 SF
    Waterfront Duplex with Rental Potential

    Renovated waterfront duplex in Key Colony Beach with rental income.

    Key Colony Beach, FL 33051

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    Two-Story Duplex in Marathon
    $675,000
    1,302 SF
    Two-Story Duplex in Marathon

    Two-story duplex on a large lot in Marathon, Florida.

    329 63 Court Gulf, Marathon, FL 33050

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    Waterfront Duplex in Sombrero Beach
    $1,300,000
    1,668 SF
    Waterfront Duplex in Sombrero Beach

    Updated waterfront duplex with dock and ocean access in Marathon.

    17-18 Man-O-War Drive, Marathon, FL 33050

    View details
    Waterfront Duplex: Income and Flexibility
    $1,848,000
    2,528 SF
    Waterfront Duplex: Income and Flexibility

    Turnkey waterfront duplex generating approximately $100K/year in rental income.

    Key Colony Beach, FL 33051

    View details

    Conch Key, FL Duplexes Investment Opportunities Market Analysis

    Explore 1 duplexes for sale in Conch Key, FL on our real estate platform. These investment opportunities span a total of 1,647 square feet of properties for sale, with an estimated market value of $3,899,000.

    Sale prices for duplexes in Conch 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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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Duplexes 1
    Short term rental properties 1

    Demographics Overview

    Population 11K
    Population Growth (5Y) +12.2%
    Median Household Income $83,243
    College Educated 49.3%

    Listings Trend

    New vs delisted commercial listings in Monroe County

    New Delisted

    Total CRE Inventory on Market (SF)

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