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481 Mashta Drive
Key Biscayne, FL, 33149
Active$19,900,000
481 Mashta Drive
Key Biscayne, FL, 33149
Active$19,900,000
5
Bedrooms
7
Bathrooms
5,940 sqft
Living Area
2017
Year Built
Key Biscayne, FL, 33149
Active$19,900,000
Key Biscayne, FL, 33149
Active$19,900,000
5
Bedrooms
7
Bathrooms
5,940 sqft
Living Area
2017
Year Built
17,012
Lot Size (sqft)
333
Days on Market
AI Photo Analysis
AI analysis is based on listing photos and may not reflect current conditions. This information was not provided by the MLS or listing broker. Always verify dock infrastructure with the listing agent.
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.
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Key Biscayne, FL, 33149
Estimate your monthly payment for this waterfront property
$3,980,000 down
Estimated payments only. Actual rates and terms may vary.
Listing courtesy of One Sotheby's International Realty
Last updated: 4/25/2026
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Dock Score™
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Dock Score is a DockOnly.com rating. Not provided by or affiliated with the MLS or listing broker. This information was not provided by the MLS.
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Assigned Public Schools
Key Biscayne K-8 Center
Grades PK-8 · Key Biscayne
Ponce de Leon MS
Grades 6-8 · Coral Gables
Coral Gables Senior High
Grades 9-12 · Coral Gables
Nearby Private Schools
School data from Miami-Dade County Open Data Hub. Verify attendance zones with the school district.