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431 12th St, Home For Sale

431 12th St, Key Colony, FL 33051

Price: $3,900,000 | 5,361 s.f. | 4 Beds | 4 Baths

 

Property Information 431 12th St

Listing Price: $3,900,000
Price per Square Foot: $892.65/s.f.
Beds: 4
Baths: 4
Interior Space: 4,369 s.f. (405.9 m²)
Total Size: 5,361 s.f. (498.1 m²)
Lot Size: 9,600 s.f.
Taxes (2025): $14,023
Reference: A11992273
 

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Description of 431 12th St

Description of Home

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.

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The MLS data provided for the property above (MLS#A11992273) is provided courtesy of Florida Keys Real Estate Group. Source: Southeast Florida MLS. Data updated 4/2/2026. Information is deemed reliable but not guaranteed. Copyright © 2026. The listing data on this page comes in part from the Internet Data Exchange (IDX), a collaboration between the following REALTOR(R) associations in the South Florida Multiple Listing Service (MLS): Miami Realtor Association, Realtor Association of Greater Ft. Lauderdale and the South Broward Board of Realtors. All rights reserved. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is believed to be accurate, but is not warranted. Use of search facilities of data on the site, other than a consumer looking to purchase real estate, is prohibited. Federal law prohibits discrimination on the basis of race, color, religion, sex, handicap, familial status or national origin in the sale, rental or financing of housing.
 

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