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    Key Colony Beach, FL
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    Key Colony Beach, FL Land for Sale

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    Marathon, FL Conch Key, FL Duck Key, FL No Name Key, FL Islamorada, FL Big Pine Key, FL
    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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    Canal Front Duplex Zoned Land
    Updated: Dec 30, 2025
    Canal Front Duplex Zoned Land

    Key Colony Beach, FL 33051

    $2,650,000
    0.19 AC lot
    Canal front lot with duplex zoning.
    New seawall installed in 2022.
    Quick building permit process in Key Colony Beach.
    Seller/Developer will consider building per existing plans.
    Pre‑construction agreement available for one side of duplex at $2,350,000.
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    Canal Front Duplex Zoned Land
    Canal Front Duplex Zoned Land

    Key Colony Beach, FL 33051

    $2,650,000
    0.19 AC lot

    Canal front duplex zoned land with new seawall.

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    Oceanfront Development Land with Dock Permit
    Oceanfront Development Land with Dock Permit

    721 W Ocean Dr, Key Colony Beach, FL 33051

    $9,198,000
    2.00 AC lot

    Oceanfront site with dock permit, 3 lots, and prior 22-unit condominium use in Key Colony Beach.

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Based on your search, we've compiled 8 Potential Opportunities for your consideration. Besides 4 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 Mixed-Use Property
    Waterfront Mixed-Use Property

    14 125th Street Gulf, Marathon, FL 33050

    $3,549,000
    1.72 AC lot

    Mixed-use zoning supports commercial and residential configurations on an oceanfront site.

    View details
    Waterfront Mixed-Use Property
    Waterfront Mixed-Use Property

    14 125Th Street Gulf, Marathon, FL 33050

    $3,549,000
    6,128 sqft 1.57 AC lot

    MU - Mixed Use Commercial zoning accompanies a raised concrete building and waterfront redevelopment site.

    View details
    Waterfront Land with Approved Dockage
    Waterfront Land with Approved Dockage

    14 125Th Street Gulf, Marathon, FL 33050

    $3,549,000
    1.72 AC lot

    Mixed Use Commercial zoning, approved dockage, and an existing recertified building define this waterfront redevelopment site.

    View details
    Land For Sale in Marathon
    Land For Sale in Marathon

    252 Pescayo Avenue, Marathon, FL 33050

    $1,395,000

    Land available on Pescayo Avenue in Marathon, Florida.

    View details

    Key Colony Beach, FL Land Market Trends and Statistics

    Explore 4 land for sale in Key Colony Beach, FL, showcased through 4 active listings on our real estate platform. These investment opportunities span a total of 107,593 square feet of properties for sale, with an estimated market value of $15,683,000.

    Sale prices for lots in Key Colony Beach, FL start at $1,185,000, averaging $3,920,750, and reaching up to $9,198,000 — 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

    Waterfront Land 2
    Residential land & home lots 2

    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 $4.8M

    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 pricing trends across core commercial property types in Monroe County

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