550 Harbor Dr, Key Biscayne, FL 33149
$19,450,000 · 7 beds, 7.5 baths, 6,497 square feet · Active
Situated on the exclusive island of Key Biscayne, this extraordinary 7,000sqft waterfront estate sits on a rare double lot located on Hurricane Harbor overlooking tranquil Manatee Lagoon. The property offers an unparalleled sanctuary of luxury and seclusion with features including a 4 car garage ideal for collectors, professionally landscaped yard well suited for outdoor entertaining, 7 bedrooms and 7.5 baths including live-in staff quarters. Expansive living areas flow seamlessly to large outdoor, covered porches becoming your al fresco living room for outdoor dining or relaxing and soaking in the beauty of the natural environment. As the sun hits the horizon, Sunsets light up the sky illuminating the clouds in a breathtaking array of tropical colors. Text listing agent. 24hr notice
Listing courtesy of Three Bridges Realty, LLC, the listing brokerage, 305-345-2023. MLS number A11912105.
Show full MLS disclaimer
Miami MLS. Listings courtesy of MIAMI REALTORS® MLS (SEFMLS). The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of MIAMI REALTORS® (Southeast Florida Multiple Listing Service, SEFMLS). Real estate listings held by brokerage firms other than Winslow Homes LLC are marked with the name of the listing brokerage. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed accurate by the MLS, and all information should be independently verified. Based on information from the Southeast Florida Multiple Listing Service (SEFMLS) as of October 20, 2026 at 2:55 AM Eastern.
All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright ©2026 BeachesMLS, Inc.
Properties displayed may be listed or sold by various participants in the MLS.
