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771 12th Street, Key Colony, FL 33051

New Listing
$4,400,000
Property Type: Residential Bedrooms: 4 Baths: 5 Square Footage: 3,878 Lot Size (sq. ft.): 14,400 Status: Active
Current Price: $4,400,000 List Date: 12/25/2025 Last Modified: 12/25/2025

Description

Experience the essence of refined coastal living in this stunning waterfront residence. 120 foot of rare deep water, private, seawalled dockage. 350 ft to open water access Gulf OR Ocean warm turquoise waters! This is an area said to be some of the best fishing grounds worldwide. Located in one the area's most sought-after luxurious neighborhoods . This home sits on an extra large lot. Land areas include 1 lot plus additional 1/2 lot. Room for additional building on the land. Designed for both elegance and ease, this home blends contemporary sophistication with a relaxed tropical ambiance-ideal for entertaining, hosting, or unwinding by the water. The home features two distinct living areas, offering flexibility and space for both lively gatherings and quiet retreats. There are 4 spacious bedrooms, each with its own ensuite bath, providing privacy and comfort, while large windows invite in natural light and serene views of the surrounding palms and canal. Off the pool, a separate 1 bedroom, 1 bath guest suite offers the perfect retreat for family or visitors, with its own private entrance. The AC'd garage, elevated above flood level, provides a versatile space for storage, vehicles & game room. As a flex space with square footage accounted for in the overall total, it can easily be transformed into additional guest quarters, or creative workspace to suit your lifestyle needs. Use the 3-story elevator to ascend to the expansive rooftop terrace, where endless sky and water views set the stage for unforgettable sunsets or evening gatherings. Outdoors, lush tropical landscaping surrounds the home, offering both privacy and natural beauty. A private 120'' dock provides room for all your toys and direct canal access for boating, kayaking, and fishing—inviting you to fully embrace the waterfront lifestyle. Additional features include a full house generator, under house storage separate from the garage, and a large underground cistern. Owner is also the agent.

More Information MLS# 617826

Contract Information

Listing Board: Marathon/Lower Keys Current Price: $4,400,000 Listing Date: 2025-12-24 List Price: $4,400,000

Location, Tax & Legal

City: KEY COLONY Off Shore Island: No Mile Marker: 53.5 Marathon Neighborhood: N/A Side: Ocean Flood Zone: AE Alternate Key #: 8553820 Parcel #: 00079871-003000 Zoning: R-1A - Key Colony Single Family Deed Restrictions: Unknown Legal: LT 30 AND NLY 1/2 LT 29 COURY SUBDIVISION PB7-13 KEY COLONY OR802-477 OR804-2046 OR806-2246 OR807-590 OR823-2450 OR850-1 Taxes: 11745.87 Tax Year: 2024 Pub Sewer HkUp: Yes Street #: 771 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 Waterfront: Yes Control Depth: 5 Lot SqFt: 14400 Pool: Yes Total Units: 0 Acres: 0.33 SqFt Source: Tax Records Rentals Allowed: With Restrictions Min Rental Days: 7 Style: Single Family Year Built: 1986 Living Apx SqFt: 3878 Total Bedrooms: 4 Full Baths: 4 Half Baths: 1 Total Baths: 5

Remarks & Misc

Remarks – Consumer: Experience the essence of refined coastal living in this stunning waterfront residence. 120 foot of rare deep water, private, seawalled dockage. 350 ft to open water access Gulf OR Ocean warm turquoise waters! This is an area said to be some of the best fishing grounds worldwide. Located in one the area's most sought-after luxurious neighborhoods . This home sits on an extra large lot. Land areas include 1 lot plus additional 1/2 lot. Room for additional building on the land. Designed for both elegance and ease, this home blends contemporary sophistication with a relaxed tropical ambiance-ideal for entertaining, hosting, or unwinding by the water. The home features two distinct living areas, offering flexibility and space for both lively gatherings and quiet retreats. There are 4 spacious bedrooms, each with its own ensuite bath, providing privacy and comfort, while large windows invite in natural light and serene views of the surrounding palms and canal. Off the pool, a separate 1 bedroom, 1 bath guest suite offers the perfect retreat for family or visitors, with its own private entrance. The AC'd garage, elevated above flood level, provides a versatile space for storage, vehicles & game room. As a flex space with square footage accounted for in the overall total, it can easily be transformed into additional guest quarters, or creative workspace to suit your lifestyle needs. Use the 3-story elevator to ascend to the expansive rooftop terrace, where endless sky and water views set the stage for unforgettable sunsets or evening gatherings. Outdoors, lush tropical landscaping surrounds the home, offering both privacy and natural beauty. A private 120'' dock provides room for all your toys and direct canal access for boating, kayaking, and fishing—inviting you to fully embrace the waterfront lifestyle. Additional features include a full house generator, under house storage separate from the garage, and a large underground cistern. Owner is also the agent. Directions: From us 1 turn onto Sadowski Causeway , turn right onto West Ocean drive, veer right at sunset park and follow 12th street to the just before the end. House on your left 771 12th St Key Colony Beach

Association Info

Mandatory Home Owners Asc: No 1st Right of Refusal: No Association Fee $: 0

Fee Includes

None: 1

Dockage

Dock Length: 120 Dock: Wood Boat Lift: 1 Seawall: Concrete

Tax Exemptions

None: 1

Appliances

Dishwasher: 1 Disposal: 1 Dryer: 1 Freezer: 1 Ice Machine: 1 Microwave: 1 Oven: 1 Range: 1 Refrigerator: 1 Washer: 1

Cooling

Ceiling Fans(s): 1 Central Air: 1

Heating

Central: 1

Waterfront

Canal Front: 1

Waterview

Canal View: 1

Floor

Tile: 1

Neighborhood Feature

Bike Paths: 1 Tennis Courts: 1 Other Area Features: 1

Interior Features

Elevator: 1 Entrance Foyer: 1 Granite Counter Top: 1 Smoke Alarms: 1 Storage: 1 Window Treatments: 1

Specialty Rooms

Other: 1

Building Style

Above Flood: Yes Stories: 2 Stories

Windows/Doors

Sliding Glass Doors: 1

Vehicle Storage

Garage: 1 Off Street Parking: 1

Security

Patrolled Area: 1

Construction

CBS: 1

Land Size

1/4 - 1/2 Acre: 1

Furnished

Negotiable: 1

Utilities

Buyer to Verify: 1 Cable Available: 1 FKAA: 1 Municipal Sewer: 1

Porch/Balcony

Deck: 1 Open Porch/Balcony: 1 Roof Top Deck: 1

Exterior Features

Built-in Grill: 1 Chickee Hut: 1 Fencing: 1 Hot Tub: 1

Pool Info

In Ground: 1 Heated: Yes

Pre-Wired

Cable: 1

Roof

Concrete Roof: 1

Shutters

Accordion: 1

Status Change Info

Status: Active

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Canal Front Waterview: Canal View Dockage: Boat Lift Vehicle Storage: Garage; Off Street Parking Furnished: Negotiable Cooling: Ceiling Fans(s); Central Air Heating: Central Utilities: Buyer to Verify; Cable Available; FKAA; Municipal Sewer Interior Features: Elevator; Entrance Foyer; Granite Counter Top; Smoke Alarms; Storage; Window Treatments Pre-Wired: Cable Specialty Rooms: Other Appliances: Dishwasher; Disposal; Dryer; Freezer; Ice Machine; Microwave; Oven; Range; Refrigerator; Washer Exterior Features: Built-in Grill; Chickee Hut; Fencing; Hot Tub Pool Info: In Ground Construction: CBS Shutters: Accordion Floor: Tile Roof: Concrete Roof Neighborhood Feature: Bike Paths; Tennis Courts; Other Area Features Security: Patrolled Area Land Size: 1/4 - 1/2 Acre
Listing Office: Gail's Island Realty, Inc.
Last Updated: December - 25 - 2025
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.