640 S Mashta Dr, Key Biscayne
#MLS: A11990382
$ 16 800 000
Listing date04/02/2026
CityKey Biscayne, FL 33149
Address640 S Mashta Dr
Area4234 sqft
Tax/year$ 155 651
Built year1968
Bedrooms4
Bathrooms4
Garage
(2)
Waterfront
640 S Mashta Dr, Key Biscayne FL 33149
Located at 640 S Mashta Dr, Key Biscayne FL 33149, this MASHTA ISLAND single family residence offers coastal living with modern comfort. Built in 1968 and set on a 15,000 SF lot with 100 feet of direct Biscayne Bay frontage and a private dock, the attached/other-style home spans 3,620 SF of living space and includes 5 bedrooms and 5 bathrooms. Two bayfront primary suites provide stunning water views, and a tranquil guest suite upstairs offers privacy and outlooks over the bay.
The open-concept layout flows from an entrance foyer and living and dining areas to a modern kitchen with pantry and dishwasher, then out to the pool and entertainment patio via floor-to-ceiling glass doors that blend indoor and outdoor living. Interior features include first-floor entry, split-bedroom floor plan, vaulted ceilings, walk-in closets, and a garage-converted living area. The property has impact windows and doors throughout, central air conditioning, and other heating and exterior details.
Outdoors, enjoy ocean-access and ocean-front frontage, bay and garden views, a pool, and an oversized 2-car garage with covered parking plus a spacious driveway and guest parking. The community fronts a public road and is located in Miami-Dade County. Schools: Key Biscayne Elementary, Ponce De Leon Middle, and Coral Gables High. Dogs OK.
This home is perfect to move into as-is, renovate, or build your dream waterfront estate on Mashta Island.
640 S Mashta Dr Key Biscayne, FL 33149 single family house for sale with MLS A11990382 located in MASHTA ISLAND. If you want to buy Single Family - 640 S Mashta Dr Key Biscayne, FL 33149, call today!