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For sale
  • $3,700,000

    431 12th St, Key Colony Beach, FL 33051

    4beds
    4,369sqft
    : 
    $22,768/mo
    Get pre-qualified
    Single Family Residence
    Built in 1993
    9,583 Square Feet Lot
    $3,476,700 Zestimate®
    $847/sqft
    $-- HOA

    What's special

    Beautiful swimming poolOversized windowsDeep-water dockLight-filled residenceWaterfront homeInviting tiki hutDedicated media room
    Discover an exceptional D'Asign Source designer home in prestigious Key Colony Beach, set on a beautifully landscaped lot with effortless access to both the bay and the open ocean. This spacious 4 bedroom 4 bath, light-filled residence offers generous living areas with soaring ceilings and oversized windows that seamlessly connect the indoors with the stunning natural surroundings. The expansive ground floor is perfectly designed for entertaining and family living, featuring a large living room, gourmet kitchen, formal dining area, and a dedicated media room and one guest bedroom and a two-car garage currently used as a versatile game room. A whole-home stereo system adds to the refined ambiance throughout. Built with enduring quality, the waterfront home features all-concrete construction and a brand-new custom metal imitation barrel tile roof. At the heart of this private oasis lies a beautiful swimming pool with an inviting tiki hut -- an ideal retreat for family gatherings and relaxed entertaining. Complementing this is a deep-water dock equipped with a powerful 30,000-pound hydraulic boat lift, offering effortless access to the bay and beyond. Perfectly suited for a large family or those who love to host, this magnificent Key Colony Beach estate delivers space, luxury, and unparalleled waterfront living in one of the Florida Keys' most sought-after communities.
    132 days
    |
    584
    |
    28
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Brenner Scheel Casey 305-783-3395,

    Florida Keys Real Estate Group

    Source: FLKMLS,MLS#: 619302MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 4
      • Full bathrooms: 4
      Cooling
      • Central Air, Ceiling Fans(s), Attic Fan
      Appliances
      • Included: Washer, Dryer, Dishwasher, Refrigerator, Range, Microwave, Disposal, Ice Maker
      • Laundry: Laundry Room
      Features
      • Built-in Features, Granite Counters, Storage, Walk-in Closet(s)
      • Flooring: Tile, Carpet
      Interior area
      • Total structure area: 4,369
      • Total interior livable area: 4,369 sqft

      Property

      Parking
      • Parking features: Attached
      • Has attached garage: Yes
      Accessibility
      • Accessibility features: None
      Features
      • Levels: Multi/Split
      • Patio & porch: Patio
      • Exterior features: Rain Gutters, Lighting
      • Has private pool: Yes
      • Pool features: In Ground, Concrete
      • Fencing: Fenced
      • On waterfront: Yes
      Lot
      • Size: 9,583 Square Feet
      • Dimensions: 80 X 120
      Details
      • Additional structures: Gazebo
      • Parcel number: 00079871001300
      • Zoning: R-1A - Key Colony Single Family
      • Other equipment: Irrigation Equipment

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Materials
      • CBS, Concrete
      Condition
      • Year built: 1993

      Utilities & green energy

      • Utilities for property: Elect Separate Meter

      Community & HOA

      Community
      • Features: Fire Hydrant, Bike Paths
      • Security: No Security
      • Subdivision: Coury Sub (53.5)
      HOA
      • Has HOA: No
      • Services included: None
      Location
      • Region: Key Colony Beach

      Financial & listing details

      • Price per square foot: $847/sqft
      • Tax assessed value: $2,532,622
      • Annual tax amount: $14,023
      • Date on market: 4/1/2026
      • Listing terms: Cash,Conventional

        Estimated market value

        $3,476,700

        $3.30M - $3.65M

        $6,981/mo

        Price history

        DateEventPrice
        4/27/2026Price change$3,700,000-5.1%$847/sqft
        Source: Key West AOR #619302 Report a problem
        4/1/2026Listed for sale$3,900,000+139.3%$893/sqft
        Source: FLKMLS #619302 Report a problem
        7/31/2020Sold$1,630,000+48.5%$373/sqft
        Source: FLKMLS #588796 Report a problem
        8/14/2013Sold$1,097,500-12.2%$251/sqft
        Source: FLKMLS #560174 Report a problem
        4/17/2013Price change$1,250,000-3.8%$286/sqft
        Source: American Caribbean Real Estate #560174 Report a problem
        1/31/2013Listed for sale$1,300,000+85.7%$298/sqft
        Source: American Caribbean Real Estate #560174 Report a problem
        3/20/1996Sold$700,000$160/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$14,023 +0.2%$1,494,967 +2.9%
        2024$14,001 +2.3%$1,452,835 +3%
        2023$13,685 +3.9%$1,410,520 +3%
        2022$13,176 -1.3%$1,369,437 +3%
        2021$13,347 +15.8%$1,329,551 +16.1%
        2020$11,523 $1,145,578 -2.4%
        2019$11,523 -2.4%$1,174,021 -7.2%
        2018$11,807 -0.1%$1,264,820 +12.7%
        2017$11,820 +13.2%$1,122,045 +13.1%
        2016$10,440 +6.1%$992,460 -1.6%
        2015$9,837 $1,008,422
        Find assessor info on the county website

        Monthly payment

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        Payment breakdown

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        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
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        Climate risks

        Neighborhood: 33051

        Getting around

        4 / 100
        Car-Dependent
        27 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating

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