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    Monroe County, FL Multifamily Properties for Sale

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    Triplex with Impact Windows
    Updated: May 13
    Triplex with Impact Windows

    235 Antigua Road, Key Largo, FL 33070

    $689,000
    2,330 sqft 0.12 AC lot
    3 separate residences with a combined 5 bedrooms and 4 bathrooms in Tavernier
    Metal roof and updated kitchens with new appliances
    New flooring in the front building
    Rear unit includes a gas stove
    Impact windows, plus an impact sliding door, and shutters
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    This listing looks promising.

    Here's a quick look at some key insights for

    235 Antigua Road, Key Largo, FL 33070

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    • Est. Cap Rate

      5.7%
      NOI ÷ price

    • Est. NOI

      $39K
      Annual

    • Price @ 7% Cap

      $558K
      Suggested

    • Property Type

      Mobile Home
      Built 1972
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    Multi-Family Waterfront Compound
    Updated: Apr 24
    Multi-Family Waterfront Compound

    34 Atlantic Drive, Key Largo, FL 33037

    $2,890,000
    3,112 sqft 0.98 AC lot
    Direct oceanfront compound with a 276‑ft concrete dock for boating, fishing, and launching watercraft
    Two separate homes on three lots: 3BR/2BA primary residence plus a 2BR/2BA second home on a separate meter
    Multiple outdoor entertaining features including an outdoor kitchen, built‑in grill, patio, and porch
    Interior features include granite countertops and walk‑in closets; tile flooring throughout
    Central heating and central A/C; metal roof; CBS/concrete construction
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    Turnkey Waterfront Duplex Townhomes
    Turnkey Waterfront Duplex Townhomes

    139 Marina Avenue, Key Largo, FL 33037

    $2,750,000
    2,485 sqft 0.21 AC lot

    Concrete, renovated duplex with ocean-view townhomes, private en-suite bedrooms, dock, and boat lift for flexible income or personal use.

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    Six-Unit Multifamily Property
    Six-Unit Multifamily Property

    912 Pohalski Street, Key West, FL 33040

    $2,250,000
    3,876 sqft 0.08 AC lot

    Six legal apartments total 10 bedrooms and 6 baths with off-street parking and separate electric and water meters.

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    Triplex and Adjacent Multifamily Lot
    Triplex and Adjacent Multifamily Lot

    127 & 121 Monroe Drive, Plantation Key, FL 33070

    $2,399,000
    2,409 sqft 0.34 AC lot

    Concrete triplex with three rental units plus an adjacent multifamily lot, offering expansion flexibility with on-site parking and outdoor space.

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    Canal-Front Duplex with Two Entrances
    Canal-Front Duplex with Two Entrances

    31032 Hollerich Drive, Big Pine Key, FL 33043

    $899,000
    1,460 sqft 0.12 AC lot

    Waterfront duplex with two 2BR/1BA units, private entrances, updated kitchens, renovated baths, and canal-front outdoor space.

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    Six-Unit Multifamily Building
    Six-Unit Multifamily Building

    912 Pohalski Street, Key West, FL 33040

    $2,250,000
    3,876 sqft 0.08 AC lot

    Six legal apartments feature separate electric and water meters, with off-street parking for residents.

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    Waterfront Duplex with Redevelopment Potential
    Waterfront Duplex with Redevelopment Potential

    230 Apache Street, Plantation Key, FL 33070

    $1,250,000
    1,500 sqft 0.24 AC lot

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

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    Value-Add Fourplex Investment Opportunity
    Value-Add Fourplex Investment Opportunity

    1224 2nd Street, Key West, FL 33040

    $1,700,000
    3,000 sqft 0.16 AC lot

    Fourplex with income potential after renovations in Key West, FL.

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    Waterfront Multifamily with Boat Lift
    Waterfront Multifamily with Boat Lift

    Key West, FL 33040

    $2,699,999
    3,568 sqft 0.27 AC lot

    Duplex-style multifamily with fully self-contained units, gated entry, and over 80' concrete seawall with a boat lift.

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    Renovated Duplex with Private Yard
    Renovated Duplex with Private Yard

    1126 Grinnell Street, Key West, FL 33040

    $1,325,000
    875 sqft 0.03 AC lot

    Two renovated 1-bedroom units with independent living and private yard space.

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    Legal Duplex on Spacious Lot
    Legal Duplex on Spacious Lot

    1409 4Th Street, Key West, FL 33040

    $1,250,000
    2,664 sqft 0.23 AC lot

    Legal duplex with rental income potential on a 10,000 SqFt lot.

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    Ocean-View Mixed-Use Property
    Ocean-View Mixed-Use Property

    Islamorada, FL 33036

    $1,680,000
    1,980 sqft 0.16 AC lot

    High-visibility mixed-use setup with ocean views and substantial parking along the Overseas Highway.

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    Key West Duplex with Pool
    Key West Duplex with Pool

    1516 17th Terrace, Key West, FL 33040

    $1,875,000
    2,423 sqft 0.30 AC lot

    Spacious duplex with pool, ideal for various living arrangements.

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    Legal Duplex with Updated Interiors
    Legal Duplex with Updated Interiors

    102 Harry Harris Drive, Key Largo, FL 33070

    $779,000
    1,496 sqft 0.11 AC lot

    Concrete duplex includes two electric and water meters, updated units, and a storage building with shared washer and dryer access.

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    Waterfront Duplex with Dockage
    Waterfront Duplex with Dockage

    303 Sombrero Beach Road, Marathon, FL 33050

    $1,549,000
    2,114 sqft 0.25 AC lot

    Stilted waterfront duplex with a pool, 110 feet of concrete seawall, and dockage for deep-water boating access.

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    Key West Duplex Redevelopment Opportunity
    Key West Duplex Redevelopment Opportunity

    3711 Eagle Avenue, Key West, FL 33040

    $825,000
    1,464 sqft 0.14 AC lot

    Legal duplex in prime location with redevelopment potential and owner financing.

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    Waterfront Mixed-Use Property with Seawall
    Waterfront Mixed-Use Property with Seawall

    Islamorada, FL 33036

    $3,349,000
    6,071 sqft 0.35 AC lot

    Mixed-use waterfront property with commercial space, residences, and a 100-foot seawall for up to eight slips.

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    Waterfront Duplex with Dockage
    Waterfront Duplex with Dockage

    596 W Shore Drive, Summerland Key, FL 33042

    $998,000
    2,572 sqft 0.13 AC lot

    Two-story waterfront duplex on a boating canal with 60 feet of dockage and separate tiki huts for each unit.

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    HCT-Zoned Multifamily Development Site
    HCT-Zoned Multifamily Development Site

    1430 Vernon Avenue, Key West, FL 33040

    $9,888,000
    2,071 sqft 0.20 AC lot

    Two-story Key West property in the HCT Historic Commercial Tourist District with two separate electric meters.

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    Charming Key West Duplex
    Charming Key West Duplex

    606 Grinnell Street, Key West, FL 33040

    $1,750,000
    1,870 sqft 0.06 AC lot

    Versatile Old Town duplex with pool, ideal for investment.

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    Redevelopment Opportunity in Old Town
    Redevelopment Opportunity in Old Town

    709 Whitmarsh Lane, Key West, FL 33040

    $3,485,000
    3,956 sqft 0.11 AC lot

    Six-unit redevelopment with permits in the heart of Old Town.

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    Waterfront Development Land with Seawall
    Waterfront Development Land with Seawall

    62250 Overseas Highway, Conch Key, FL 33050

    $5,750,000
    2,478 sqft 1.98 AC lot

    Waterfront land with concrete seawall, deep-water boat basin, and mixed-use zoning, plus licensed transient entitlements.

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    Key West Legal Duplex
    Key West Legal Duplex

    1911 Seidenberg Avenue, Key West, FL 33040

    $1,250,000
    1,119 sqft 0.12 AC lot

    Well-maintained two-story duplex in Key West's Midtown East.

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    Monroe County, FL Multifamily Properties Market Trends and Statistics

    Explore 98 multifamily properties for sale in Monroe County, FL, showcased through 98 active listings on our real estate platform. These investment opportunities span a total of 210,041 square feet of properties for sale, with an estimated market value of $155,194,495.

    Sale prices for multifamily properties in Monroe County, FL start at $289,000, averaging $2,217,064, and reaching up to $11,000,000 — 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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