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For sale
    • Price cut: $145K (2/16)
    $2,350,000

    520 12th St, Key Colony Beach, FL 33051

    3beds
    1,584sqft
    : 
    Single Family Residence
    Built in 1985
    8,276.4 Square Feet Lot
    $-- Zestimate®
    $1,484/sqft
    $-- HOA

    What's special

    Bonus spaceNew metal roofBeautifully elevated single-family residenceSparkling poolLush tropical landscapingCustom cabinetryCustom bar
    Welcome to an exceptional island retreat in the heart of Key Colony Beach. This beautifully elevated single-family residence embodies refined coastal luxury, offering 3 bedrooms and 2 bathrooms, bonus space with no detail overlooked. Thoughtfully renovated, the home features a new metal roof, impact-rated windows and doors, elegant LVT flooring, designer lighting, custom cabinetry, and exquisite Cambria quartz countertops throughout.Outdoors, the property transforms into a private resort. Lush tropical landscaping and ambient exterior lighting set the tone, while an outdoor shower, custom bar, and sparkling pool create the perfect setting for entertaining or unwinding in complete privacy. Boating enthusiasts will appreciate 75 feet of concrete dockage with a composite step-down system, seamlessly blending function with style. An expansive, titled upper deck offers a sophisticated space for gatherings, sunset cocktails, and elevated island living.Ideally positioned just moments from the iconic Sunset Park, this residence delivers a rare combination of luxury, lifestyle, and location. A truly turnkey opportunity to own a distinguished piece of paradise in Key Colony Beach. Schedule your private showing today.
    68 days
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    728
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    18
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    Zillow last checked: 7 hours ago

    Listing updated: March 18, 2026 at 02:16am

    Listed by:

    Brenner Scheel Casey 305-783-3395,

    Florida Keys Real Estate Group

    Source: FLKMLS,MLS#: 618093MLS LogoOriginating MLS: Marathon/Lower Keys

    Tour with a local agent

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 3
      • Bathrooms: 2
      • Full bathrooms: 2
      Cooling
      • Central Air, Ceiling Fans(s)
      Appliances
      • Included: Washer, Disposal, Microwave, Range, Refrigerator, Dishwasher, Dryer
      Features
      • Built-in Cabinets, Quartz Countertops, Bar, Storage
      • Flooring: Tile, Laminate
      • Doors: Impact Rstnce Doors
      • Windows: Window Treatments, Other Windows/Doors, Impact Rstnce Window
      Interior area
      • Total interior livable area: 1,584 sqft

      Property

      Parking
      • Parking features: Garage, Covered
      • Has garage: Yes
      Features
      • Patio & porch: Open Porch/Balcony, Patio
      • Exterior features: Bar, Water Display, Storage, Outdoor Shower, Lighting
      • Has private pool: Yes
      • Pool features: In Ground, Fiberglass
      • Has view: Yes
      • View description: Canal
      • Has water view: Yes
      • Water view: Canal
      • Waterfront features: Canal Front, Waterfront, Dock: Concrete, Dock Length: 75
      Lot
      • Size: 8,276.4 Square Feet
      • Features: Less Than 1/4 Acre
      Details
      • Additional structures: Workshop
      • Parcel number: 00077500000000
      • Zoning: R-1A
      • Zoning description: Key Colony Single Family
      • Special conditions: Standard

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Materials
      • CBS
      • Roof: Metal
      Condition
      • Updated/Remodeled
      • New construction: No
      • Year built: 1985

      Utilities & green energy

      • Electric: Elect Separate Meter
      • Sewer: Municipal Sewer, Public Sewer
      • Utilities for property: FKAA, Buyer to Verify

      Community & HOA

      Community
      • Features: Tennis Court(s), Other, Fire Hydrant
      • Security: Security System, Other
      • Subdivision: Key Colony Bch 2nd Addn (53.5)
      HOA
      • Has HOA: No
      • Services included: None
      Location
      • Region: Key Colony Beach

      Financial & listing details

      • Price per square foot: $1,484/sqft
      • Tax assessed value: $1,518,899
      • Annual tax amount: $14,634
      • Date on market: 1/13/2026
      • Listing terms: Seller Finance Psble,Conventional,Cash
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        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        Price history
        DateEventPrice
        2/16/2026Price change$2,350,000-5.8%$1,484/sqft
        Source: Key West AOR #618093 Report a problem
        2/2/2026Price change$2,495,000-3.1%$1,575/sqft
        Source: FLKMLS #618093 Report a problem
        1/22/2026Price change$2,575,000-3.7%$1,626/sqft
        Source: FLKMLS #618093 Report a problem
        1/13/2026Listed for sale$2,675,000+57.4%$1,689/sqft
        Source: FLKMLS #618093 Report a problem
        12/18/2024Sold$1,700,000-3.7%$1,073/sqft
        Source: Key West AOR #612403 Report a problem
        12/10/2024Pending sale$1,764,999$1,114/sqft
        Source: FLKMLS #612403 Report a problem
        11/30/2024Contingent$1,764,999$1,114/sqft
        Source: FLKMLS #612403 Report a problem
        11/25/2024Listed for sale$1,764,999+355.5%$1,114/sqft
        Source: MLKAR #612403 Report a problem
        6/29/1999Sold$387,500$245/sqft
        Source: Public Record Report a problem

        Public tax history

        Public tax history
        YearProperty taxesTax assessment
        2025$14,635 +139.2%$1,518,899 +142.4%
        2024$6,119 +3.4%$626,494 +3%
        2023$5,918 +3.1%$608,247 +3%
        2022$5,739 -0.8%$590,532 +3%
        2021$5,785 +4.7%$573,333 +1.4%
        2020$5,523 $565,418 +2.3%
        2019$5,523 +2.2%$552,706 +1.9%
        2018$5,402 +5.7%$542,401 +2.1%
        2017$5,109 +4.5%$531,245 +2.1%
        2016$4,889 -1.9%$520,319 +0.7%
        2015$4,981 $516,702

        Find assessor info on the county website

        BuyAbility℠ payment

        Est. payment
        $13,147/mo
        Principal & interest
        $11541
        Property taxes
        $1606
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          Climate risks

          Neighborhood: 33051

          Getting around

          3 / 100
          Car-Dependent
          26 / 100
          Somewhat Bikeable

          Nearby schools

          GreatSchools rating

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