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    Key West, FL Duplexes for Sale

    8 results
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    Two Cottages with Income Potential
    $1,699,000
    1,594 SF

    Two Cottages with Income Potential

    621 Elizabeth St, Key West, FL 33040

    Two-cottage property in Old Town Key West with rental and income potential.

    • Two cottages on one property in the heart of Old Town Key West, offering exceptional flexibility and income potential.
    • Main house features a main‑floor primary bedroom and bath, open living area with vaulted ceilings, and updated kitchen with quartz countertops and stainless steel appliances.
    • Charming guest cottage with private patio, renovated in 2020, ideal for rental income or guest accommodations.
    • Enjoy the private outdoor oasis with pool, water features, back deck, and thoughtfully designed landscaping.
    • Recent upgrades including impact windows, plumbing, electrical, siding, roofs, and exterior paint, ensuring modern comfort and peace of mind.
    Updated: Jan 10
    View details
    Key West Multi-Family Conversion Opportunity
    $1,299,000
    1,932 SF

    Key West Multi-Family Conversion Opportunity

    1409 Truman Ave, Key West, FL 33040

    Key West home approved for multi-family conversion to duplex.

    • Approved for Multi‑family: City of Key West allows reverting to a multi‑family property with up to 2 units.
    • Lucrative rental income potential, estimated at $3k-$6k monthly per unit.
    • Spacious layout easily transitions back to a duplex configuration.
    • Located in the vibrant Key West market with strong rental demand.
    • Features historical Key West Eyebrow home charm with modern amenities.
    Updated: Jan 9
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    Key West Income-Producing Duplex
    $1,068,000
    1,694 SF

    Key West Income-Producing Duplex

    Duplex near the coast with a solid rent roll.

    1916 Seidenberg Ave, Key West, FL 33040
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    Key West Multi-Family Homes
    $5,850,000
    3,010 SF

    Key West Multi-Family Homes

    Two homes near Duval Street with private pools and rental history.

    421 Simonton St, Key West, FL 33040
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    Waterfront Multifamily Home with Boat Lift
    $3,300,000
    3,568 SF

    Waterfront Multifamily Home with Boat Lift

    Upgraded multifamily home with waterfront access and rental income potential.

    6 Egret Ln, Key West, FL 33040
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    Historic Duplex Near Key West Beaches
    $1,249,000
    1,395 SF

    Historic Duplex Near Key West Beaches

    Charming duplex near Old Town, beaches, and gallery district.

    1209 Pearl St, Key West, FL 33040
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    Key West Duplex on Large Lot
    $1,199,000
    2,664 SF

    Key West Duplex on Large Lot

    Legal duplex on a spacious corner lot in Key West.

    1409 4Th St, Key West, FL 33040
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    Key West Duplex with Pool
    $999,999
    1,421 SF

    Key West Duplex with Pool

    Legal duplex in Key West with in-ground pool.

    620 White St, Key West, FL 33040
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    Based on your search, we've compiled 12 Potential Opportunities for your consideration. Besides 8 Active listings in Key West, 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.

    Waterfront Duplex in Big Pine
    $987,500
    1,536 SF

    Waterfront Duplex in Big Pine

    Waterfront CBS duplex with boating access and investment potential.

    3962 No Name Rd, Big Pine Key, FL 33043
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    Income-Producing Duplex in Big Pine
    $799,000
    1,924 SF

    Income-Producing Duplex in Big Pine

    CBS duplex with boating access and rental income potential.

    1433 Sunset Rd, Big Pine Key, FL 33043
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    Waterfront Duplex with Dock
    $1,750,000

    Waterfront Duplex with Dock

    Duplex with dock, pool, and short-term rental potential.

    440-442 48Th Street Ocean, Marathon, FL 33050
    View details
    Waterfront Duplex in Marathon, Florida
    $1,099,000
    1,512 SF

    Waterfront Duplex in Marathon, Florida

    Duplex with canal access, ideal for rental income or residence.

    4901/4903 49 St, Marathon, FL 33050
    View details

    Key West, FL Duplexes Investment Opportunities Market Analysis

    Explore 8 duplexes for sale in Key West, FL, showcased through 8 active listings on our real estate platform. These investment opportunities span a total of 37,026 square feet of properties for sale, with an estimated market value of $14,964,999.

    Prices for duplexes in Key West, FL start at $999,999, averaging $2,137,857, and reaching up to $5,850,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you have the most current data.

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