Offering approximately 8,500 square feet of construction, this

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Home For Sale

481 S Mashta Drive

Key Biscayne, Florida 33149

Miami-Dade County

Waterfront: Yes

Water View: Yes

Community: Smugglers Cove

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$20,900,000 5 br, 7.0 bath 5940 sq. ft. 0.000 acres

Offering approximately 8,500 square feet of construction, this spectacular waterfront estate on coveted Mashta Island is a rare expression of space, privacy, and coastal elegance. Fully remodeled and designed for effortless indoor-outdoor living, this three-level contemporary residence enjoys direct ocean access, panoramic views of Smugglers Cove and Biscayne Bay, and constant ocean breezes that create a true sense of serenity.
Set on a 17,012-square-foot lot in one of Key Biscayne's most exclusive and tranquil enclaves, the property is surrounded by water, light, and lush tropical landscaping, offering remarkable privacy and a peaceful island atmosphere. The residence features 8,544 square feet of total area, including garage and terraces, with expansive open living spaces, refined finishes, abundant natural light, and impeccable craftsmanship throughout. The flexible floor plan allows for effortless reconfiguration to accommodate additional rooms and customized living areas. World-class amenities include a private dock for boating enthusiasts, resort-style pool, summer kitchen, spectacular covered entertainment level, elevator, gym, garage, and extra parking, creating an exceptional setting for both grand entertaining and everyday enjoyment. This is more than a home...it is a private waterfront sanctuary, offering the rare opportunity to experience the very best of island living in one of Key Biscayne's most prestigious locations.

Interior:
  • Bedrooms: 5
  • Baths: 7.0
  • Sq Ft: 5940
  • Year Built: 2017
  • Utilities: 
  • Fireplaces: 
  • Stories: 
  • Heat/AC: Electric (Heating)
  • Garage: Covered, Driveway, Garage
Exterior:
  • Lot Size: 0.000 acre
  • Lot Dimensions: 
  • Waterfront: Yes
  • View Types: Water
  • Yard: 
  • Siding: Block
  • Roof: Barrel
  • Property Taxes: $84,924
  • MLS #: A11779615
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Contact Information:
Beach Home For Sale in Key Biscayne, Florida
Listing Agent: Brigitte Nachtigall, One Sothebys International Realty, 305-365-2811, 305-365-2811 Listing Site, Listing Status: Active
Copyright © 2025 Miami REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Ad Number: 6018333
Viewed 154 times.
Updated: Jan 13, 2026

This property is a Home located at 481 S Mashta Drive, Key Biscayne, Florida 33149, and is currently For Sale at $20,900,000. This Home has 5 bedrooms, 7.0 baths, 5940 sq ft.