Homes in Key Biscayne

640 S Mashta Dr

640 S Mashta Dr, Key Biscayne FL 33149

Presented by Christopher Johnson, Broker, Johnson Homes LLC

Price
$16,800,000
Bedrooms
4
Baths
4
Interior
3,620 sq ft
Taxes
$155,651 a year
Year built
1968
Water
Ocean Access, Ocean Front
MLS
A11990382
Schedule a private showing
640 S Mashta Dr, Key Biscayne

About the home

Welcome to your own slice of paradise! Enjoy breathtaking sunsets from your private dock on this waterfront property boasting 100 feet of direct Biscayne Bay frontage. Ideally located on Mashta Island. Set on a 15,000 SF lot, the home features 5 beds, 5 baths, including 2 bayfront primary suites with stunning views, impact windows and doors throughout. The open-concept layout flows seamlessly from the living and dining areas to the modern kitchen and out to the pool and entertainment patio, with floor-to-ceiling glass doors that open to blend indoor and outdoor living. Tranquil guest suite upstairs offering privacy and views. It also features an oversized 2-car garage, covered parking, and a spacious driveway for guests. Perfect to move in, renovate, or build your dream waterfront estate

Christopher Johnson

Presented by

Christopher Johnson

Broker, Johnson Homes LLC · License #BK3248478

Licensed since 2012, with more than 700 transactions and over $250 million in sales. I'll give you a candid read on this home: what it costs to own, how it compares, and whether it is worth the price.

More about Christopher

Listing courtesy of DLS International Realty. The multiple listing information is provided by the MIAMI REALTORS® MLS from a copyrighted compilation of listings. The compilation of listings and each individual listing are © MIAMI REALTORS® MLS. All rights reserved. The information provided is 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. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Data last updated October 10, 2026 at 12:09 PM ET.