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    Key Colony Beach, FL
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    Key Colony Beach, FL Duplexes for Sale

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    Waterfront Duplex with Dockage
    Updated: Apr 2
    Waterfront Duplex with Dockage

    Key Colony Beach, FL 33051

    $1,185,000
    2,166 sqft 0.09 AC lot
    2,166‑square‑foot half duplex with three bedrooms and three bathrooms
    37.5 feet of dockage with direct access from the lower‑level living area
    Above‑flood lower level includes a one‑bedroom, one‑bath suite and additional living space
    2018 standing‑seam metal roof and newer AC
    CBS construction on a 0.09‑acre lot
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    This listing looks promising.

    Here's a quick look at some key insights for

    391 10th Street, Key Colony, FL 33051

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    • Est. Cap Rate

      3.1%
      NOI ÷ price

    • Est. NOI

      $36K
      Annual

    • Price @ 7% Cap

      $518K
      Suggested

    • Property Type

      Single Family Residence
      Built 1988
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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 Property
    Waterfront Duplex Property

    Key Colony Beach, FL 33051

    $799,000
    1,428 sqft 0.04 AC lot

    Canal-front property with two balconies, covered parking, and direct boating access.

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    Half-Duplex with Dockage
    Half-Duplex with Dockage

    Key Colony Beach, FL 33051

    $789,000
    900 sqft 0.07 AC lot

    Half-duplex in R-1B zoning with ductless HVAC, granite counters, and access to 30 feet of dockage.

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Waterfront Duplex with Boat Dock
    Waterfront Duplex with Boat Dock

    Key Colony Beach, FL 33051

    $1,849,000
    2,540 sqft 0.15 AC lot

    Renovated duplex offers two fully equipped units, with a 60-foot deep-water dock and 2022 boat lift.

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    Canalfront Duplex with Private Dock
    Canalfront Duplex with Private Dock

    Key Colony Beach, FL 33051

    $1,290,000
    1,682 sqft 0.10 AC lot

    Updated island property with open living areas, boating access, and R-2A zoning in Key Colony.

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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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    Waterfront Single-Family Home
    Waterfront Single-Family Home

    Key Colony Beach, FL 33051

    $899,995
    990 sqft 0.10 AC lot

    Turnkey furnished waterfront home with 37.5 feet of dockage and unrestricted ocean access, plus a 2017 roof and 2025 water heater.

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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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    Updated Duplex with Metal Roof
    Updated Duplex with Metal Roof

    Key Colony Beach, FL 33051

    $594,000
    1,031 sqft 0.08 AC lot

    Elevated two-bedroom half duplex with two bathrooms, a granite-finished kitchen, private balcony, and flexible lower-level living area.

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    Waterfront Duplex with Private Pool
    Waterfront Duplex with Private Pool

    Key Colony Beach, FL 33051

    $1,300,000
    1,176 sqft 0.10 AC lot

    Two-bedroom waterfront duplex with elevator, private pool, dock, boat lift, and R-2A zoning in Key Colony.

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    Based on your search, we've compiled 15 Potential Opportunities for your consideration. Besides 11 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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    Updated Duplex with Two Units
    Updated Duplex with Two Units

    285 A 66Th Street, Marathon, FL 33050

    $775,000
    1,770 sqft 0.12 AC lot

    Two residential units feature refreshed kitchens, bathrooms, flooring, and electrical systems.

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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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    Waterfront Duplex with Boat Basin
    Waterfront Duplex with Boat Basin

    Big Pine Key, FL 33043

    Contact for pricing
    0.79 AC lot

    Legal waterfront duplex with two separately metered dwelling units, a boat ramp, and protected boat basin.

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    Key Colony Beach, FL Duplexes Market Trends and Statistics

    Explore 11 duplexes for sale in Key Colony Beach, FL, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 18,540 square feet of properties for sale, with an estimated market value of $13,424,995.

    Sale prices for duplexes in Key Colony Beach, FL start at $594,000, averaging $1,220,454, 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 11
    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)

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