640 S Mashta Drive
640 S Mashta Drive, Key Biscayne, FL 33149
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640 S Mashta Drive 640 S Mashta Drive, Key Biscayne, FL 33149 For Sale
$16,800,000
640 S Mashta Drive · Key Biscayne · Key Biscayne
640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 1 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 2 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 3 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 4 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 5 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 6 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 7 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 8 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 9 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 10 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 11 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 12 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 13 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 14 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 15 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 16 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 17 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 18 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 19 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 20 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 21 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 22 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 23 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 24 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 25 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 26 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 27 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 28 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 29 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 30 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 31 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 32 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 33 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 34 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 35 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 36 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 37 of 38640 S Mashta Drive, 640 S Mashta Drive, Key Biscayne FL 33149, photo 38 of 38
$16,800,000Asking Price
$4,641Per SqFt
4/4Beds/BathsBd/Ba
3,620SqFt · 336.3 m²
MLS A11990382 · 168 days on Zilbert · Listed Apr 2, 2026 · 640 S Mashta Drive, Key Biscayne FL 33149Current layoutPhotos first

Property Details

Asking Price$16,800,000
Price per SqFt$4,641
Maintenance feeInquire
Property Taxes$155,651 2025
Interior Space3,620 SqFt
Beds/Baths4/4
Year Built1968
Garage2 spaces
PoolYes
Lot Size0.34 acres
MLS #A11990382

Estimated Costs

An estimate of condo or HOA fees and property taxes

Monthly figures, as provided
Not providedmaintenance
$12,971taxes · $155,651/yr ÷ 12

Monthly carry is not computed when the association fee or the taxes are not provided.

From the listing

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

Listed by DLS International Realty

Sales History for This Home · 640 S Mashta Drive, Key Biscayne, FL 33149

Sales history is unavailable for this property

Mark Zilbert
Mark Zilbert
Licensed Real Estate Broker · I track every sale in this neighborhood. Ask me about this home or the neighborhood.
+1 (786) 280-0201

Listed by DLS International Realty. Mark Zilbert of ONE Sotheby's International Realty is a cooperating (transaction) broker and helps buyers find properties in Key Biscayne and throughout South Florida.

Location

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