Single Family Residence For Sale

640 S Mashta Drive, Key Biscayne, FL 33149

$16,800,000
4 Bedrooms
4 Bathrooms
3,620
Property Description

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

Basic Details
Listing Type : For Sale
Price : $16,800,000
Bedrooms : 4
Bathrooms : 4
View : Bay, Garden
Square Footage : 3,620
Full Bathrooms : 4
Property Sub Type : Single Family Residence
Field 3132 : Boat Dock
Features
: Central Air
: Attached, Driveway, Guest, Garage, Garage Door Opener
Other
Public Sewer
Other
Other
In Ground
Barrel
Location
US
FL
Miami-Dade
Key Biscayne
33149
2520
640 S Mashta Drive, Key Biscayne, Florida 33149
Extended Details
Breakfast Area, Bathtub, Dining Area, Dual Sinks, Entrance Foyer, Living/Dining Room, Main Level Primary, Multiple En Suite Bathrooms, Pantry, Split Bedrooms, Soaking Tub, Separate Shower, Vaulted Ceiling(s), Walk-In Closet(s)
Other
Virtual Tour URL
MASHTA ISLAND
04.02.2026
Key Biscayne K-8
Ponce De Leon
Coral Gables
Block
Yes
Cable Available
Dishwasher
Boat Dock
2
15000
East
2001
$0
DLS International Realty
Brigitte De Langeron
1
4990
1
15000
Active
2026-04-02
Listed As-Is
2026-04-02T00:00:00Z
155651
Public
Beaches
Property TypeSingle Family Residence
StatusActive
Listing IDA11990382
Year Built1968
Lot Area15,000
Mortgage Calculator
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Realtyna

Nadereh (Nana) Rezaie, P.A.  Broker Associate, Certified Luxury Home Marketing Specialist™ GUILD™

Nana Rezaie 561-660-1948

Office: 561-660-1948 1400 Corporate Center Way, Second Floor, Wellington, FL 33414 Each office independently owned and operated 561-472-1236 .

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