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    Monroe County, FL Multifamily Properties for Sale

    64 results
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    Key Largo Multifamily Investment Opportunity
    $750,000
    2,197 SF

    Key Largo Multifamily Investment Opportunity

    185 Dove Lake Drive, Key Largo, FL 33070

    Multifamily property with vacant lot near Tavernier park.

    • Seller financing available, presenting an attractive investment opportunity.
    • Multi‑unit property with three income‑producing units (two 2BR/1BA and one 1BR/1BA).
    • Includes a separate vacant lot with scenic walking paths and lush tropical foliage.
    • Prime location near a County park with boat ramps, beach, swim lagoon, playground, and ball fields.
    • Downstairs unit features access to back and side yards and multiple spacious screened porches.
    Updated: Feb 17
    View details
    Waterfront Multi-Family Home with Boatlift
    $3,149,000
    3,568 SF

    Waterfront Multi-Family Home with Boatlift

    Key West, FL 33040

    Waterfront duplex with bonus suite, boat lift, and gated entry.

    • Waterfront property with over 80' of concrete seawall and an 8,000 lb boat lift, providing direct access to open water and Geiger Key Marina.
    • Multifamily duplex‑style home with a bonus suite, offering flexibility for living, family, guests, or rental income.
    • Main upstairs unit features 3 bedrooms, 3.5 bathrooms, a large living room with a private deck overlooking the canal, and a fully equipped kitchen.
    • Each unit (main, downstairs, and bonus suite) is self‑contained with its own private living space, entrance, kitchen, laundry, and A/C.
    • Secure electric gated entry for the main unit with parking directly at the front door, plus additional gated access and gravel parking for downstairs units.
    Updated: Mar 11
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    Key West Duplex on Large Lot
    $1,250,000
    2,664 SF

    Key West Duplex on Large Lot

    Legal duplex on a spacious corner lot in Key West.

    1409 4Th Street, Key West, FL 33040
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    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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    Key West Duplex Lot Opportunity
    $899,000

    Key West Duplex Lot Opportunity

    Spacious corner duplex lot with development potential in Key West.

    2330 Staples Avenue, Key West, FL 33040
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    Waterfront Redevelopment Opportunity in Marathon
    $3,549,000
    1.72 Acres

    Waterfront Redevelopment Opportunity in Marathon

    Rare waterfront redevelopment with deep water dockage and highway frontage.

    14 125th Street Gulf, Marathon, FL 33050
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    Cudjoe Key Buildable RV Lot
    $300,000

    Cudjoe Key Buildable RV Lot

    Buildable RV lot in Venture Out community, near Key West.

    701 Spanish Main Drive, Cudjoe Key, FL 33042
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    Waterfront Duplex in Big Pine
    $987,500
    1,536 SF

    Waterfront Duplex in Big Pine

    Waterfront duplex with boating access, seawall, and investment potential.

    3962-3964 No Name Road, Big Pine Key, FL 33043
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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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    Key West Income-Producing Triplex
    $1,449,000
    2,699 SF

    Key West Income-Producing Triplex

    Triplex in Key West with strong income and parking.

    1614 Dennis Street, Key West, FL 33040
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    Key West Duplex with Income
    $1,000,000
    1,239 SF

    Key West Duplex with Income

    Well-maintained duplex in Key West with income potential.

    2004 Patterson Avenue, Key West, FL 33040
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    Waterfront Duplex with Redevelopment Potential
    $1,350,000
    1,500 SF

    Waterfront Duplex with Redevelopment Potential

    Canal-front duplex in Plantation Key with income and redevelopment opportunities.

    228 & 230 Apache Street, Plantation Key, FL 33070
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    Key West Income Producing Duplex
    $1,050,000
    1,452 SF

    Key West Income Producing Duplex

    Renovated Key West duplex with strong income potential.

    1018 Georgia Street, Key West, FL 33040
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    Income Producing Duplex, Big Pine
    $749,000
    1,924 SF

    Income Producing Duplex, Big Pine

    Income-producing duplex with boating access in Big Pine Key, Florida.

    1433 Sunset Road, Big Pine Key, FL 33043
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    Waterfront Redevelopment Opportunity in Marathon
    $3,549,000

    Waterfront Redevelopment Opportunity in Marathon

    Rare waterfront property with redevelopment potential and deep water dockage.

    14 125th Street Gulf, Marathon, FL 33050
    View details
    Key Largo Lot with RV
    $319,000
    0.03 Acres

    Key Largo Lot with RV

    Lot with RV in Key Largo, short-term rentals allowed.

    325 Calusa St #5, Key Largo, FL 33037
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    Marathon Duplex Redevelopment Opportunity
    $650,000
    1,460 SF

    Marathon Duplex Redevelopment Opportunity

    Duplex in Marathon, Florida Keys, with redevelopment potential.

    746 50th St Gulf, Marathon, FL 33050
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    Key West Multifamily Development Opportunity
    $9,888,000
    2,071 SF

    Key West Multifamily Development Opportunity

    Undeveloped ocean-view property in Key West's Historic Commercial Tourist District.

    1430 Vernon Avenue, Key West, FL 33040
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    Waterfront Residences: Luxury & Income
    $11,000,000
    12,198 SF

    Waterfront Residences: Luxury & Income

    Three designer homes on a waterfront parcel with income potential.

    2394 Coco Plum Drive, Marathon, FL 33050
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    Waterfront Compound with Income Potential
    $3,524,000
    3,524 SF

    Waterfront Compound with Income Potential

    Luxury multi-family compound with income potential in Lower Matecumbe, FL.

    Islamorada, FL 33036
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    Waterfront Multi-Family Investment Opportunity
    $4,750,000
    3,788 SF

    Waterfront Multi-Family Investment Opportunity

    Historic Key West property with multi-family units and commercial zoning.

    901 Eisenhower Drive, Key West, FL 33040
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    Mixed-Use Property with Development Potential
    $2,300,000

    Mixed-Use Property with Development Potential

    Four parcels with commercial, residential units, and vacant land.

    5331 5Th Avenue, Stock Island, 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 Street, Key West, FL 33040
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    Historic Key West Multi-Family Property
    $5,250,000
    8,472 SF

    Historic Key West Multi-Family Property

    Historic multi-unit property near Duval Street with commercial potential.

    314 Simonton Street, Key West, FL 33040
    View details

    Monroe County, FL Multifamily Properties Investment Opportunities Market Analysis

    Explore 64 multifamily properties for sale in Monroe County, FL, showcased through 64 active listings on our real estate platform. These investment opportunities span a total of 3,502,883,455 square feet of properties for sale, with an estimated market value of $85,751,000.

    Sale prices for multifamily properties in Monroe County, FL start at $300,000, averaging $2,091,487, and reaching up to $9,888,000 — 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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