$16,800,000
640 S Mashta Dr, Key Biscayne FL 33149
4 beds · 4 baths · 3,620 sq ft · Single Family Residence · Active
MLS# A11990382 · Listing courtesy of DLS International Realty
Facts
- Bedrooms
- 4
- Bathrooms
- 4
- Living area
- 3,620 sq ft
- Price per sq ft
- $4,641
- Lot
- 15,000 sq ft
- Type
- Single Family Residence
- Year built
- 1968
- Exposure
- East
- View
- Bay, Garden
- Waterfront
- Ocean Access, Ocean Front
- Parking
- 2 garage spaces
- Taxes
- $155,651 (2025)
- Listed
- Apr 2, 2026
About this residence
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
640 S Mashta Dr, Key Biscayne FL 33149Open in Google Maps
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Veronika Horshteyn, Reaction Realty Group Inc. WhatsApp is the fastest way to reach her.
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Listing data last updated 10/21/2026, 6:00:57 AM ET.


