431 12th St
Key Colony, FL, 33051
Active$3,700,000
431 12th St
Key Colony, FL, 33051
Active$3,700,000
4
Bedrooms
4
Bathrooms
4,369 sqft
Living Area
1993
Year Built
9,600
Lot Size (sqft)
167
Days on Market
Dock Score™
DockOnlyWhat shaped this score
DockOnly.com rating, not provided by the MLS or listing broker.
Dock & Water AccessMLS
AI Aerial Imagery Detection
Detected by AI from open-source aerial mapping imagery and may not reflect current conditions. This information was not provided by the MLS or listing broker. Always verify dock infrastructure with the listing agent.
Canal WidthDockOnly
At the dock
County parcel dataSingle measurement at the dock · width variation along the canal not yet available
Measured perpendicular from this parcel's waterfront edge to the parcel directly across the canal, using surveyed county GIS boundaries.
Will it turn around?
Up to 39 ft
Easy
handling
39–53 ft
Fits
with care
53–61 ft
Tight
(back-in)
Boats over 61 ft typically back in/out rather than turning here. Clear channel ≈ 80 ft with boats moored both sides (~13 ft per side for dock + beam). Wide-beam yachts need the upper end of each range.
Navigation RouteDockOnly
Data sources: SFWMD AHED waterway polygons · FHWA National Bridge Inventory 2024 · Not provided by the MLS or listing broker.
Description
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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Location
Key Colony, FL, 33051
Displayed by Blue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker (DBPR CQ1018554) · [email protected]
Listing courtesy of Florida Keys Real Estate Group via Florida Keys MLS
Last checked: August 23, 2026
Listing updated: September 6, 2026
© 2026 Florida Keys Board of REALTORS®, Inc. All rights reserved. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of the Florida Keys Board of REALTORS®. Information is deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change, or withdrawal.
IDX information is provided exclusively for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Dock Score™
DockOnlyWhat shaped this score
DockOnly.com rating, not provided by the MLS or listing broker.
Nearest Bridge Clearances
Florida Keys, critical for tall/large vessels
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$740,000 down
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