$3,700,000
$200K PRICE DROP

431 12th St Key Colony Beach, FL 33051

Key Colony Beach Area

Estimated payment $21,486/month

Total Views 6,758
4 Beds
4 Baths
4,369 Sq Ft
$847 Price per Sq Ft

Highlights

  • Boat Lift
  • Home fronts a canal
  • Granite Countertops
  • Coral Shores High School Rated A
  • Cathedral Ceiling
  • Gazebo

About This 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.

Listing Agent

Brenner Scheel Casey

Florida Keys Real Estate Group License #BK339103, BK3179545, SL3504409 Listed on: 04/01/2026

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $14,023

Year Built

  • Built in 1993

Lot Details

  • 9,600 Sq Ft Lot
  • Lot Dimensions are 80 x 120
  • Home fronts a canal
  • Fenced
  • Sprinkler System
  • Property is zoned R-1A - Key Colony Single Family

Home Design

  • Metal Roof
  • Concrete Block And Stucco Construction

Interior Spaces

  • 4,369 Sq Ft Home
  • Cathedral Ceiling
  • Ceiling Fan
  • Drapes & Rods
  • Entrance Foyer
  • Storage
  • Canal Views
  • Attic Fan

Kitchen

  • Range
  • Microwave
  • Ice Maker
  • Dishwasher
  • Granite Countertops
  • Built-In or Custom Kitchen Cabinets
  • Disposal

Bedrooms and Bathrooms

  • 4 Bedrooms
  • Split Bedroom Floorplan
  • Walk-In Closet
  • 4 Full Bathrooms

Laundry

  • Laundry Room
  • Dryer
  • Washer

Home Security

  • Impact Glass
  • Fire and Smoke Detector

Parking

  • Attached Garage
  • Guest Parking

Outdoor Features

  • Boat Lift
  • Dock made with Composite Material
  • Exterior Lighting
  • Gazebo
  • Rain Gutters

Utilities

  • Central Air
  • Separate Meters

Community Details

  • Coury Sub Subdivision

Listing and Financial Details

  • Assessor Parcel Number 00079871001300

Home Details

Home Type

Single Family

Est. Annual Taxes

$14,023

Year Built

Built in 1993

Lot Details

9,600 Sq Ft Lot

Listing Details

  • Property Type: Residential
  • Dockage Dock: Composite
  • Year Built: 1993
  • Property Sub Type: Single Family Residence
  • LotSizeAcres: 0.22
  • Lot Size: 80 X 120
  • Co List Office Mls Id: 1055699
  • Subdivision Name: Coury Sub (53.5)
  • Dockage: Boat Lift
  • Vehicle Storage: Garage, Attached, Guest Parking
  • Waterview: Canal View
  • Shutters: Other
  • Specialty Rooms: Laundry Room
  • Accessibility Feat: None
  • Special Features: None

Interior Features

  • Interior Amenities: Built-in Cabinets, Granite Counter Top, Storage, Walk-in Closet(s)
  • Appliances: Washer, Dryer, Dishwasher, Refrigerator, Range, Microwave, Disposal, Ice Machine
  • Full Bathrooms: 4
  • Total Bedrooms: 4
  • Interior Features: Drapes/Blinds Incl, Cathedral Ceilings, Split Bedroom, Entrance Foyer, Built-in Cabinets, Granite Counter Top, Smoke Alarms, Storage, Walk-in Closet(s), Window Treatments
  • WindowsDoors: Other Windows/Doors, Impact Rstnce Window, Impact Rstnce Doors

Exterior Features

  • Waterfront: Yes
  • Exterior Features: Fencing, Gazebo, Rain Gutters, Lighting, Sprinkler System
  • Construction Type: CBS, Concrete
  • Waterfront: Canal Front
  • Roof: Metal Roof

Utilities

  • Utilities: Elect Separate Meter
  • Laundry Features: Laundry Room
  • Cooling: Central Air, Ceiling Fans(s), Attic Fan
  • Utilities: FKAA, Municipal Sewer, Elect Separate Meter

Condo/Co-op/Association

  • Pets Allowed: Yes

Lot Info

  • Parcel Number: 00079871001300
  • Lot Size Sq Ft: 9600.0

Rental Info

  • Furnished: Unfurnished

Tax Info

  • Tax Year: 2025
  • Tax Annual Amount: 14023.44

Map

Range of Values:

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Value Increase
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft Prior Sale
04/27/2026 04/27/26 Price Changed $3,700,000 -5.1% $847 / Sq Ft
03/23/2026 03/23/26 For Sale $3,900,000 +139.3% $893 / Sq Ft
07/31/2020 07/31/20 Sold $1,630,000 -6.8% $493 / Sq Ft View Prior Sale
07/24/2020 07/24/20 Pending -- -- --
05/28/2020 05/28/20 Price Changed $1,749,000 -2.8% $529 / Sq Ft
01/28/2020 01/28/20 Price Changed $1,799,000 -14.3% $544 / Sq Ft
12/21/2019 12/21/19 For Sale $2,100,000 +91.3% $635 / Sq Ft
08/14/2013 08/14/13 Sold $1,097,500 -15.6% $332 / Sq Ft View Prior Sale
07/16/2013 07/16/13 Pending -- -- --
01/25/2013 01/25/13 For Sale $1,300,000 -- $393 / Sq Ft
Source: Marathon and Lower Keys Association of REALTORS®

Source: Marathon and Lower Keys Association of REALTORS®

MLS Number: 619302

APN: 00079871-001300

Florida Monroe County Key Colony Beach 33051

431 12th St, Key Colony Beach, FL

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Listing Agent
Brenner Scheel Casey
Florida Keys Real Estate Group
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