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4 Beds
4 Baths
4,369 sqft

$3,700,000

431 12th Street, Key Colony FL, 33051

Price per sqft$846.88
Built in1993
Property size4,369 sqft
Property typeResidential

Overview

Active

Listed Apr 1, 2026

Updated 8 days ago

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.

$24,616/mo

Est. mortgage payment based on a $3,700,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
619302

Interior Features

Bedrooms
4
Bathrooms
4
Cooling
Yes
Basement
No

Exterior Features

Lot Size
0.22 Acres

Other Property Details

Taxes
$14,023
Tax Frequency
Annually
Garage
Yes
View
Yes
Pets Allowed
Yes
Pool
Yes
Waterfront
Yes
MLS provider logo

Listed by Brenner Scheel Casey with Florida Keys Real Estate Group
Listing Contact: 305-783-3395 

The IDX display contains information sourced from the Florida Keys Board of REALTORS® as of 9/7/2026. This data is intended solely for personal, non-commercial use and is not to be utilized for any other purposes except to identify potential properties for purchase. Although the MLS data displayed is typically considered reliable, it is not guaranteed to be accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and are advised to conduct their own investigations or seek professional assistance. Other sources besides the Listing Agent may have contributed to the MLS data presented. Unless expressly specified in writing, the Broker/Agent has not confirmed any information obtained from external sources. The Broker/Agent may or may not have acted as the Listing and/or Selling Agent and cannot guarantee the accuracy of property locations displayed on any map. Any compensation offers are solely made to participants of the MLS where the listing is registered.

©2026 Florida Keys Board of REALTORS® all rights reserved.

Data last updated on 9/7/2026 at 3:17 AM UTC

 

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