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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.

Features
In Ground
Bay, Ocean
Ocean Front, Ocean Access
Address Map
FL
Miami-Dade County
Key Biscayne
33149
640 S Mashta Dr
MASHTA ISLAND
W81° 49' 31.6''
N25° 41' 5.1''
MASHTA ISLAND
MLS Addon
Detached, Two Story
Bay
Unrestricted Salt Water Access, Private Dock
All Cash, Conventional
1
House
$81,859
2024
Click Here
Municipal Water
2001
16/10/2025 23:06:48

640 S Mashta Dr, Key Biscayne, Florida 33149

$19,500,000
5 Bedroom(s)
5 Bathroom(s)
3,620 size sq.ft.
Listing ID #A11896953
Basic Details
Property Type Residential
Listing Type For Sale
Listing ID A11896953
Price $19,500,000
Bedroom(s) 5
Bathroom(s) 5
Square Footage 3,620 Sqft
Year Built 1968
Days on Market 2
Building Area 4,990 Sqft
Status Active
Property SubType Single Family Residence
Lot Area 15,000 Sqft
List Date 2026-03-14
On Market Date 15/10/2025
Elena Beck
MiamiInvestrealty
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