640 S Mashta Dr
Key Biscayne, FL, 33149
Active$16,800,000
640 S Mashta Dr
Key Biscayne, FL, 33149
Active$16,800,000
4
Bedrooms
4
Bathrooms
3,620 sqft
Living Area
1968
Year Built
15,000
Lot Size (sqft)
170
Days on Market
Dock Score™
DockOnlyWhat shaped this score
DockOnly.com rating, not provided by the MLS or listing broker.
Dock & Water AccessMLS
AI Aerial Imagery Detection
Detected by AI from open-source aerial mapping imagery and may not reflect current conditions. This information was not provided by the MLS or listing broker. Always verify dock infrastructure with the listing agent.
Navigation RouteDockOnly
Data sources: SFWMD AHED waterway polygons · FHWA National Bridge Inventory 2024 · Not provided by the MLS or listing broker.
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
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Location
Key Biscayne, FL, 33149
Displayed by Blue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker (DBPR CQ1018554) · [email protected]
Listing courtesy of DLS International Realty via MIAMI REALTORS®
Last checked: September 25, 2026
Listing updated: September 19, 2026
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Dock Score™
DockOnlyWhat shaped this score
DockOnly.com rating, not provided by the MLS or listing broker.
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