259 St Thomas Avenue, Key Largo, FL 33037

$5,400,000

Property Type: Residential Bedrooms: 6 Baths: 8 Square Footage: 5,600 Lot Size (sq. ft.): 11,078 Status: Pending

Current Price: $5,400,000 List Date: 2/09/2026 Last Modified: 5/27/2026

Description

Brand-new luxury waterfront construction featuring 6 bedrooms and 8 bathrooms with a sleek modern design and high-end finishes throughout. The chef's kitchen is equipped with premium Sub-Zero appliances and designed for both everyday living and entertaining. Built for efficiency and durability with a metal roof, solar panels, and a water cistern system. Outdoor living includes a resort-style pool, expansive covered entertaining areas, and a 55-foot private dock, garage and tackle room, ideal for boating and offshore access. A rare opportunity to own a newly built luxury waterfront home in Key Largo.

More Information MLS# 618563

Contract Information

Listing Board: Florida Keys Current Price: $5,400,000 Listing Date: 2026-02-09 List Price: $5,400,000

Location, Tax & Legal

City: KEY LARGO Off Shore Island: No Mile Marker: 100 Marathon Neighborhood: N/A Side: Ocean Flood Zone: AE,AE Alternate Key #: 1553824 Parcel #: 00453473-000200 Zoning: OTH - Other Zoning Deed Restrictions: Unknown Legal: LT 259 PORT LARGO THIRD ADDITION KEY LARGO PB6-58 OR496-967 OR1637-1212 OR1819-742AFF OR1819-762 OR3175-1907 Taxes: 7831.34 Tax Year: 2025 Pub Sewer HkUp: Yes Street #: 259 Street Name: St Thomas Street Suffix: Avenue Key/Island: Key Largo State/Province: FL Zip Code: 33037 County: Monroe Subdivision: Port Largo (100.0) Area: 27 - Key Largo MM 97-107

General Property Description

Realtor.COM Type: Residential - Single Family Waterfront: Yes Control Depth: 6 Lot Size: X Lot SqFt: 11078 Pool: Yes Lot Sqft Source: Builder/Architect Acres: 0.25 SqFt Source: Builder/Architect Rentals Allowed: With Restrictions Style: Single Family Year Built: 2026 Living Apx SqFt: 5600 Total Bedrooms: 6 Full Baths: 7 Half Baths: 1 Total Baths: 8

Remarks & Misc

Remarks – Consumer: Brand-new luxury waterfront construction featuring 6 bedrooms and 8 bathrooms with a sleek modern design and high-end finishes throughout. The chef's kitchen is equipped with premium Sub-Zero appliances and designed for both everyday living and entertaining. Built for efficiency and durability with a metal roof, solar panels, and a water cistern system. Outdoor living includes a resort-style pool, expansive covered entertaining areas, and a 55-foot private dock, garage and tackle room, ideal for boating and offshore access. A rare opportunity to own a newly built luxury waterfront home in Key Largo.

Association Info

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

Fee Includes

None: 1

Dockage

Dock Length: 55 Dock: Concrete

Tax Exemptions

None: 1

Appliances

Dishwasher: 1 Microwave: 1 Oven: 1 Refrigerator: 1

Pets

Pets Allowed: 1

Cooling

Ceiling Fans(s): 1 Central Air: 1

Waterfront

Canal Front: 1

Waterview

Canal View: 1

Floor

Tile: 1

Interior Features

Pantry: 1 Walk-in Closet(s): 1

Property Condition

New Construction: 1

Specialty Rooms

Other: 1

Building Style

Above Flood: No

Windows/Doors

Impact Rstnce Doors: 1 Impact Rstnce Window: 1 Sliding Glass Doors: 1

Vehicle Storage

Garage: 1

Construction

Concrete: 1

Land Size

1/4 - 1/2 Acre: 1

Furnished

Unfurnished: 1

Terms

Cash: 1 Conventional: 1

Utilities

Cistern: 1 Municipal Sewer: 1

Porch/Balcony

Deck: 1

Exterior Features

Fencing: 1 Lighting: 1

Pool Info

In Ground: 1

Roof

Metal Roof: 1

GF-Utilities

Cistern: 1 Solar Panels: 1

Status Change Info

Under Contract Date: 2026-05-11 Status: Pending

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Canal Front Waterview: Canal View Property Condition: New Construction Vehicle Storage: Garage Furnished: Unfurnished Cooling: Ceiling Fans(s); Central Air Utilities: Cistern; Municipal Sewer Interior Features: Pantry; Walk-in Closet(s) Specialty Rooms: Other Appliances: Dishwasher; Microwave; Oven; Refrigerator Exterior Features: Fencing; Lighting Pool Info: In Ground Construction: Concrete Floor: Tile Roof: Metal Roof Pets: Pets Allowed Land Size: 1/4 - 1/2 Acre Terms: Cash; Conventional GF-Utilities: Cistern; Solar Panels

Listing Office: Golden International Realty

Last Updated: May - 27 - 2026

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.

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