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CALL: +1 786-468-4380
520 S Mashta Dr, Key Biscayne
#MLS: A12071221
$ 19 900 000
Listing date08/12/2026
CityKey Biscayne, FL 33149
Address520 S Mashta Dr
Area3578 sqft
Tax/year$ 201 741
Built year1961
Bedrooms5
Bathrooms4
Garagetak (2)
Waterfronttak

520 S Mashta Dr, Key Biscayne FL 33149

Discover a rare waterfront opportunity in Mashta Island A Replat Of, one of Key Biscayne’s most exclusive residential enclaves in Miami-Dade County. This attached, one-story Single Family Residence was built in 1961 and offers 3,085 square feet of living space on an exceptional 22,140-square-foot lot.
The property features 138 feet of bay frontage, ocean access, a seawall, and breathtaking Bay and Direct Ocean views. A private pool, two-car garage, and driveway parking add comfort and convenience. Inside, the home offers first-floor entry, a split-bedroom layout, and a spacious family room. Central air and central heating provide year-round comfort, while other equipment and appliances are included.
Plans by renowned architect Pablo Corazzini of Vitalini Corazzini Architects are available, presenting an exciting vision for a spectacular indoor-outdoor estate designed around the lot’s remarkable scale, waterfront setting, and unforgettable sunsets. Buyers may choose to pursue the concept or create their own legacy residence.
Living at 520 S Mashta Dr, Key Biscayne FL 33149 means enjoying Miami’s tropical climate, beautiful beaches, boating, waterfront dining, vibrant entertainment, and convenient access to the city’s cultural and business centers. The property is served by Keybiscayne Elementary, Ponce De Leon Middle, and Coral Gables High School. Community features include Other Subdivision – See Remarks.
For more information or to schedule a private conversation, call or text Tel/WhatsApp at +1 786.468.4380.
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