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$5,600,000
259 St Thomas Avenue
Key Largo, FL 33037
MLS# 618563
6 beds  |  8 baths  |  5400 sqft


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Open House (02/14/2026 - 10:30 am - 12:30 pm)

Property Description
PICTURES COMING SOON. Brand-new waterfront construction featuring 6 bedrooms and 8 bathrooms with a modern design. This residence offers high-quality finishes throughout, including a chef's kitchen with premium Sub-Zero appliances. Built with efficiency and durability in mind, the home includes a metal roof, solar panels, and a water cistern system. Outdoor amenities include a resort-style pool, expansive covered entertaining areas, a 55-foot dock, and a tackle room--ideal for boating and waterfront living. A rare opportunity to own a luxury new construction combining modern design, high-end materials, and eco-conscious features.

Details
Maps
Contract Information
Listing Board: Florida Keys
Current Price: $5,600,000
Listing Date: 2026-02-09
List Price: $5,600,000
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: 5400
Total Bedrooms: 6
Full Baths: 7
Half Baths: 1
Total Baths: 8
Remarks & Misc
Remarks – Consumer: PICTURES COMING SOON. Brand-new waterfront construction featuring 6 bedrooms and 8 bathrooms with a modern design. This residence offers high-quality finishes throughout, including a chef's kitchen with premium Sub-Zero appliances. Built with efficiency and durability in mind, the home includes a metal roof, solar panels, and a water cistern system. Outdoor amenities include a resort-style pool, expansive covered entertaining areas, a 55-foot dock, and a tackle room--ideal for boating and waterfront living. A rare opportunity to own a luxury new construction combining modern design, high-end materials, and eco-conscious features.
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
Status: Active
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: February - 11 - 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.