Skip main navigation
For sale
    • Price cut: $200K (4/27)
    $3,700,000

    431 12th St, Key Colony Beach, FL 33051

    4beds
    4,369sqft
    : 
    Loading
    Get pre-qualified
    Single Family Residence
    Built in 1993
    9,583 Square Feet Lot
    $3,458,700 Zestimate®
    $847/sqft
    $-- HOA

    What's special

    Beautiful swimming poolTwo-car garageOversized windowsDeep-water dockLight-filled residenceWaterfront homeInviting tiki hut
    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.
    84 days
    |
    432
    |
    16
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Brenner Scheel Casey 305-783-3395,

    Florida Keys Real Estate Group

    Source: FLKMLS,MLS#: 619302MLS LogoOriginating MLS: Marathon/Lower Keys

    Loading...

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 4
      • Bathrooms: 4
      • Full bathrooms: 4
      Cooling
      • Central Air, Attic Fan, Ceiling Fans(s)
      Appliances
      • Included: Washer, Ice Machine, Disposal, Microwave, Range, Refrigerator, Dishwasher, Dryer
      • Laundry: Laundry Room
      Features
      • Built-in Cabinets, Walk-In Closet(s), Storage, Granite Counters, Entrance Foyer, Split Bedroom, Cathedral Ceiling(s)
      • Flooring: Tile, Carpet
      • Doors: Impact Rstnce Doors
      • Windows: Drapes/Blinds Incl, Window Treatments, Other Windows/Doors, Impact Rstnce Window, Other
      Interior area
      • Total interior livable area: 4,369 sqft

      Property

      Parking
      • Total spaces: 2
      • Parking features: Garage, Guest, Attached
      • Has attached garage: Yes
      Accessibility
      • Accessibility features: None
      Features
      • Levels: Two,Multi/Split
      • Stories: 2
      • Patio & porch: Patio
      • Exterior features: Sprinkler System, Lighting, Rain Gutters
      • Has private pool: Yes
      • Pool features: Heated, In Ground, Concrete
      • Fencing: Fenced
      • Has view: Yes
      • View description: Canal
      • Has water view: Yes
      • Water view: Canal
      • Waterfront features: Canal Front, Waterfront, Dock: Composite, Dock Length: 80, Dockage: Boat Lift
      Lot
      • Size: 9,583 Square Feet
      • Dimensions: 80 x 120
      • Features: Less Than 1/4 Acre
      Details
      • Additional structures: Gazebo
      • Parcel number: 00079871001300
      • Zoning: R-1A
      • Zoning description: Key Colony Single Family

      Construction

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

      Utilities & green energy

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

      Community & HOA

      Community
      • Features: Tennis Court(s), Bike Paths, Fire Hydrant
      • Security: Smoke Detector(s), 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

        $3,458,700

        $3.29M - $3.63M

        $7,991/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

        Est. payment

          Payment breakdown

          Explore the cost of this home by adjusting the details. Changes won't be saved.
          All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
          HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
          Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
          See how much you could borrow to make a competitive offer.
          Get pre-qualified

          Climate risks

          Neighborhood: 33051

          Getting around

          4 / 100
          Car-Dependent
          27 / 100
          Somewhat Bikeable

          Nearby schools

          GreatSchools rating

          Skip to the end of the carouselSkip to the beginning of the carousel

          A local agent can set up tours, give advice and negotiate with sellers.

          Browse local experts

          Similar homes

          Skip to the end of the carouselSkip to the beginning of the carousel

                Nearby cities

                Nearby zip codes

                Other Key Colony Beach Topics

                  Search
                  Updates
                  Favorites
                  Plan
                  Inbox