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    Key Colony Beach, FL
    Duplex

    Key Colony Beach, FL Duplexes for Sale

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    Marathon, FL Conch Key, FL Duck Key, FL No Name Key, FL Islamorada, FL Big Pine Key, FL
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    Updated Canal-Front Duplex
    Updated: Aug 27
    Updated Canal-Front Duplex

    Key Colony Beach, FL 33051

    $875,000
    885 sqft 0.10 AC lot
    37.5 feet of canal frontage with a step‑down dock and new pilings
    885‑square‑foot, two‑bedroom, two‑bath residence
    R‑2A - Key Colony Two Fam zoning
    Newer seawall and metal roof; impact windows and sliders
    Screened porch and waterfront chickee hut
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    Waterfront Duplex with Dockage
    Updated: Sep 15
    Waterfront Duplex with Dockage

    Key Colony Beach, FL 33051

    $799,000
    914 sqft 0.05 AC lot
    40‑foot dockage along a 200‑foot canal
    914 square feet with 2 bedrooms and 2 bathrooms
    R‑2A - Key Colony Two Fam zoning
    Built in 1959 with CBS construction
    Two impact sliders provide canal views
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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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    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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    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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    Based on your search, we've compiled 11 Potential Opportunities for your consideration. Besides 7 Active listings in Key Colony Beach, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Opportunities in Nearby Cities

    Here are 4 Similar properties we found in Nearby Locations for your consideration.

    Waterfront Duplex with Updated Interiors
    Waterfront Duplex with Updated Interiors

    31032 Hollerich Drive, Big Pine Key, FL 33043

    $899,000
    1,460 sqft 0.12 AC lot

    Two residences offer private entrances, outdoor showers, and separate living spaces.

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    Three-Story Duplex with Fenced Yard
    Three-Story Duplex with Fenced Yard

    410 101St St Ocean, Marathon, FL 33050

    $622,500
    1,760 sqft 0.07 AC lot

    Deed-restricted housing residence with open living areas, covered parking, and central heating and air conditioning.

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

    29678 Enterprise Avenue, Big Pine Key, FL 33043

    $1,295,000
    1,820 sqft 0.17 AC lot

    Stilted two-unit property with updated finishes, a metal roof, and direct access to a wide boating canal.

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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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    Key Colony Beach, FL Duplexes Market Trends and Statistics

    Explore 7 duplexes for sale in Key Colony Beach, FL, showcased through 7 active listings on our real estate platform. These investment opportunities span a total of 12,753 square feet of properties for sale, with an estimated market value of $9,436,995.

    Sale prices for two-family homes in Key Colony Beach, FL start at $799,000, averaging $1,348,142, and reaching up to $2,845,000 — 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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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Duplexes 7
    Short term rental properties 7

    Demographics Overview

    Population 525
    Median Household Income $94,531
    College Educated 61.4%

    High-Yield Neighborhoods for Investment

    Identify Key Colony Beach submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

    Neighborhood Average Price
    33051 $1.4M

    Listings Trend

    New vs delisted commercial listings in Monroe County

    New Delisted

    Total CRE Inventory on Market (SF)

    Average Property Price per SF

    For-sale Residential Income pricing trends in Monroe County

    Residential Income

    How Realmo verifies these figures

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