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    Marathon, FL Multifamily Properties for Sale

    17 results
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    Multifamily Complex in Marathon, Florida
    $1,800,000
    3,017 SF

    Multifamily Complex in Marathon, Florida

    13755 Overseas Hwy, Marathon, FL 33050

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

    • Prime multi‑family complex in a sought‑after Keys market with immediate income potential.
    • High‑demand location with direct access to US‑1/Overseas Highway.
    • Three residential property rights included.
    • Two sturdy concrete block structures: a 3‑bedroom, 2‑bathroom residence and a duplex with two efficiency studio units.
    • Opportunity to purchase the adjacent parcel and submerged land rights for expanded control and development.
    Updated: Nov 17, 2025
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    Ocean View Duplex in Marathon
    $1,650,000
    1,590 SF

    Ocean View Duplex in Marathon

    945 98 St, Marathon, FL 33050

    Remodeled duplex with ocean views and direct ocean access.

    • Direct ocean access with deep boat access.
    • Income‑generating duplex with a one‑bedroom unit.
    • Recently remodeled with a new roof and impact windows/doors.
    • Stilted concrete block construction.
    • Breathtaking ocean views.
    Updated: Nov 25, 2025
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    Waterfront Residences: Luxury & Income
    $11,000,000

    Waterfront Residences: Luxury & Income

    Three designer homes with income potential near Coco Plum Beach.

    2394 Coco Plum Dr, Marathon, FL 33050
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    Marathon Triplex Income Property
    $789,000
    2,074 SF

    Marathon Triplex Income Property

    Triplex in Marathon, fully occupied, great income potential.

    908 66 St, Marathon, FL 33050
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    Waterfront Redevelopment Opportunity with Dockage
    $3,599,000

    Waterfront Redevelopment Opportunity with Dockage

    Rare waterfront property with redevelopment potential and deep water dockage.

    14 125Th Street Gulf, Marathon, FL 33050
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    Renovated Duplex on Deep Water
    $1,700,000
    1,854 SF

    Renovated Duplex on Deep Water

    Turnkey duplex in Marathon with ocean access and rental income.

    574-576 99 St, Marathon, FL 33050
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    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
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    Conch Key Duplex with Gulf Views
    $899,950
    2,704 SF

    Conch Key Duplex with Gulf Views

    Large duplex in Conch Key with strong rental income potential.

    82 N Conch Ave, Marathon, FL 33050
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    Income-Producing Duplex in Marathon, FL
    $675,000
    1,040 SF

    Income-Producing Duplex in Marathon, FL

    Legal duplex in Marathon, FL with redevelopment potential.

    744 St Gulf St, Marathon, FL 33050
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    Marathon Keys Multifamily Investment
    Contact for pricing
    1,000 SF

    Marathon Keys Multifamily Investment

    10 Units, High ROI, Oceanfront

    101 11Th Street Ocean, Marathon, FL 33050
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    Luxury Waterfront Multifamily in Marathon
    $1,447,000

    Luxury Waterfront Multifamily in Marathon

    Profitable Keys Investment, Ocean Views

    104 52Nd Street Ocean, Marathon, FL 33050
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    Oceanfront Keys Rental Home
    $629,000
    1,000 SF

    Oceanfront Keys Rental Home

    Luxury 2-bed, 1.5-bath vacation rental.

    101 11Th Street Ocean, Marathon, FL 33050
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    Marathon Keys Multifamily Investment
    $1,495,000

    Marathon Keys Multifamily Investment

    Beachfront Duplex, Fully Renovated

    308 Sombrero Beach Rd, Marathon, FL 33050
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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
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    Marathon Home Near Sombrero Beach
    $1,125,000

    Marathon Home Near Sombrero Beach

    Home near Sombrero Beach with dock and vacation rental potential.

    308 Sombrero Beach Rd, Marathon, FL 33050
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    Tranquility Bay Beach House Resort
    $520,000

    Tranquility Bay Beach House Resort

    Two-bedroom beach house with rental potential in lush resort area.

    2600 Overseas Hwy, Marathon, FL 33050
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    Grassy Key Marina Opportunity
    $9,900,000
    22,000 SF

    Grassy Key Marina Opportunity

    Marina with apartments, store, and redevelopment potential in Marathon, FL.

    59073 Overseas Hwy, Marathon, FL 33050
    View details
    Based on your search, we've compiled Potential Opportunities for your consideration. Besides 17 Active Listings in Marathon, FL, we suggest to view alternatives - similar 6 Off-Market properties to explore as potential leads.

    Explore Off-Market Properties in Marathon, FL

    Consider similar Off-Market properties in Marathon, 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.

    101 11Th Street Ocean

    101 11Th Street Ocean

    Multifamily properties • 1,000 SF
    Value Estimation by Request
    101 11Th Street Ocean, Marathon, FL 33050
    View details
    101 11Th Street Ocean

    101 11Th Street Ocean

    Multifamily properties • 1,000 SF
    Value Estimation by Request
    101 11Th Street Ocean, Marathon, FL 33050
    View details
    442 48Th Street Ocean

    442 48Th Street Ocean

    Multifamily properties
    Value Estimation by Request
    442 48Th Street Ocean, Marathon, FL 33050
    View details
    104 52Nd Street Ocean

    104 52Nd Street Ocean

    Multifamily properties
    Value Estimation by Request
    104 52Nd Street Ocean, Marathon, FL 33050
    View details
    308 Sombrero Beach Rd

    308 Sombrero Beach Rd

    Multifamily properties
    Value Estimation by Request
    308 Sombrero Beach Rd, Marathon, FL 33050
    View details
    520 12Th Street Gulf

    520 12Th Street Gulf

    Residential income properties
    Value Estimation by Request
    520 12Th Street Gulf, Marathon, FL 33050
    View details

    Marathon, FL Multifamily Properties Investment Opportunities Market Analysis

    Explore 23 multifamily properties for sale in Marathon, FL, showcased through 17 active listings on our real estate platform. These investment opportunities span a total of 3,502,259,719 square feet of properties for sale, with an estimated market value of $8,612,950.

    Prices for multifamily properties in Marathon, FL start at $675,000, averaging $1,230,421, and reaching up to $1,800,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you have the most current data.

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    Most Searched ZIP Codes in Marathon, FL

    • 33050

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