520 S Mashta Drive
Seize a rare opportunity to create a landmark waterfront estate on one of the largest residential lots in Key Biscayne’s exclusive Mashta Island enclave. Spanning an extraordinary 22,140 square feet, this exceptional property offers 138 feet of pristine water frontage and sweeping open water views, providing an unparalleled setting for a world class residence.Plans by renowned architect, Pablo Corazzini of Vitalini Corazzini Architects, are available to the buyer, offering a thoughtfully conceived vision that takes full advantage of the property’s remarkable scale, premier waterfront setting, and spectacular sunsets. The proposed design creates an extraordinary canvas for sophisticated indoor-outdoor living and entertaining, should the buyer choose to pursue the concept.With its exceptional lot size, expansive water frontage, and coveted Mashta Island address, this is a truly irreplaceable opportunity to create a legacy estate in one of South Florida’s most prestigious waterfront communities.
Selling a home in Key Biscayne? You can list on the same MLS for a flat fee instead of a listing commission. See how flat fee MLS works in Key Biscayne, check what the plans cost, or start your listing.
Listed by Coldwell Banker Realty · 305-361-5722
Listing data comes from the participating MLS and is provided for consumers’ personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Properties shown may be listed by brokerages other than Pure Equity Realty LLC, and are marked with the listing office’s name. Information is deemed reliable but is not guaranteed accurate by the MLS or by Pure Equity Realty LLC, and should be independently verified. Data last updated October 16, 2026.