431 12th Street, Key Colony, FL 33051

$3,900,000
Property Type: Residential Bedrooms: 4 Baths: 4 Square Footage: 4,369 Lot Size (sq. ft.): 9,600 Status: Active
Current Price: $3,900,000 List Date: 4/01/2026 Last Modified: 4/13/2026

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.

Open Houses

Saturday, April 18, 11:00 am - 1:00 pm

More Information MLS# 619302

Contract Information

Current Price: $3,900,000 Listing Date: 2026-03-23 Listing Board: Marathon/Lower Keys List Price: $3,900,000

Location Tax Legal

Street #: 431 Street Name: 12th Street Suffix: Street Key/Island: Key Colony State/Province: FL Zip Code: 33051 County: Monroe Subdivision: Coury Sub (53.5) Area: 17 - Vaca Cut - Both Sides Holiday Inn/Key Colony

General Property Description

Realtor.COM Type: Residential - Single Family Style: Single Family Waterfront: Yes Control Depth: 6 Pool: Yes Year Built: 1993 Lot Size: 80 X 120 Lot SqFt: 9600 Lot Sqft Source: Property Data Card Acres: 0.22 Living Apx SqFt: 4369 SqFt Source: Property Data Card Total Bedrooms: 4 Full Baths: 4 Total Baths: 4 Rentals Allowed: Yes Min Rental Days: 7

Status Change Info

Status: Active

Association Info

Mandatory Home Owners Asc: No 1st Right of Refusal: No

Dockage

Dock Length: 80 Dock: Composite

Building Style

Above Flood: Unknown Stories: 2 Stories

Vehicle Storage

Car(s): 2

Pool Info

Heated: Yes

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Canal Front Waterview: Canal View Dockage: Boat Lift Building Style: Split Level Vehicle Storage: Garage; Attached; Guest Parking Furnished: Negotiable Cooling: Attic Fan; Ceiling Fans(s); Central Air Utilities: Elect Separate Meter; FKAA; Municipal Sewer Interior Features: Built-in Cabinets; Cathedral Ceilings; Drapes/Blinds Incl; Entrance Foyer; Granite Counter Top; Smoke Alarms; Split Bedroom; Storage; Walk-in Closet(s); Window Treatments Specialty Rooms: Laundry Room Appliances: Dishwasher; Disposal; Dryer; Ice Machine; Microwave; Range; Refrigerator; Washer Exterior Features: Fencing; Gazebo; Lighting; Rain Gutters; Sprinkler System Accessibility Feat: None Pool Info: In Ground; Concrete Construction: CBS; Concrete Shutters: Other Floor: Carpet; Tile Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Bike Paths; Fire Hydrant; Tennis Courts Security: No Security Land Size: Less Than 1/4 Acre Terms: Cash; Conventional Title: Title Ins - Buyer
Listing Office: Florida Keys Real Estate Group
Last Updated: April - 13 - 2026
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