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    Monroe County, FL Duplexes for Sale

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    Updated Canal-Front Duplex
    Updated Canal-Front Duplex

    Key Colony Beach, FL 33051

    $875,000
    885 sqft 0.10 AC lot

    Two-bedroom waterfront residence with outdoor entertaining areas, modernized interiors, and boating-oriented improvements.

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    Waterfront Duplex with Dockage
    Waterfront Duplex with Dockage

    Key Colony Beach, FL 33051

    $799,000
    914 sqft 0.05 AC lot

    Two-bedroom, two-bath property with canal access, impact sliders, central air, and a private patio.

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    Two-Unit Duplex with Central Air
    Two-Unit Duplex with Central Air

    159 Casa Court Drive, Key Largo, FL 33070

    $799,000
    1,844 sqft 0.17 AC lot

    Two separate residences each offer two bedrooms and one bathroom within a multi-family property near everyday amenities.

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    Elevated Two-Unit Duplex
    Elevated Two-Unit Duplex

    189 Casa Court Dr, Tavernier, FL 33070

    $860,000
    1,804 sqft

    Flexible residential property with covered parking, outdoor space, and separate living accommodations.

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    Updated Duplex with Central Air
    Updated Duplex with Central Air

    285 A 66Th Street, Marathon, FL 33050

    $750,000
    1,770 sqft 0.12 AC lot

    Two separate living spaces feature renovated kitchens, bathrooms, flooring, and upgraded electrical systems.

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    Renovated Waterfront Duplex with Pool
    Renovated Waterfront Duplex with Pool

    Key Colony Beach, FL 33051

    $1,849,000
    2,540 sqft 0.15 AC lot

    Two renovated units each feature a full kitchen, with short-term rentals permitted.

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    Canalfront Duplex
    Canalfront Duplex

    Key Colony Beach, FL 33051

    $1,170,000
    1,682 sqft 0.10 AC lot

    Updated island residence with private dock and boat lift along a deep-water canal.

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    Renovated Duplex with Guest Cottage
    Renovated Duplex with Guest Cottage

    162 Jo-Jean Way, Key Largo, FL 33070

    $1,050,000
    1,950 sqft 0.23 AC lot

    Two updated residences share a landscaped lot with separate access, parking, storage, and no HOA.

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    Waterfront Duplex with Dockage
    Waterfront Duplex with Dockage

    Key Colony Beach, FL 33051

    $899,995
    990 sqft 0.10 AC lot

    Fully furnished duplex with unrestricted ocean access, coastal water views, and a documented Airbnb income history.

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    Half-Duplex with Boat Slip
    Half-Duplex with Boat Slip

    Key Colony Beach, FL 33051

    $999,000
    1,264 sqft 0.08 AC lot

    Three-bedroom residence with screened outdoor space, central air, and access to a private 30-foot boat slip.

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    Two-Bedroom Half Duplex
    Two-Bedroom Half Duplex

    250 66Th Street, Marathon, FL 33050

    $295,000
    783 sqft 0.05 AC lot

    Fenced grounds, front-yard parking, and a metal roof support this CBS-built residential property.

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    Canal-Front Duplex with Dockage
    Canal-Front Duplex with Dockage

    Key Colony Beach, FL 33051

    $2,845,000
    4,478 sqft 0.19 AC lot

    Legal duplex configuration offers separate living spaces with an interior lockout and established vacation-rental activity.

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    Four-Unit Multifamily Property
    Four-Unit Multifamily Property

    Key West, FL 33040

    $2,000,000
    0.05 AC lot

    Four individually licensed residences with separate utility metering, laundry rooms, and covered front porches.

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    Based on your search, we've compiled Potential Opportunities for your consideration. Besides 37 Active Listings in Monroe County, FL
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