
640 S Mashta Dr, Key Biscayne, FL 33149
As of , this 4 bedroom, 4 bath house is for sale at $16,800,000 ($4,641 per sq ft). It was listed on .
MLS data updated .
Key facts
- Type
- House
- Year built
- 1968
- Property tax
- $155,651 (2025)
- Parking
- 2 garage spaces
- View
- Bay, Garden
- Waterfront
- Yes
- Pets
- Pets allowed
- Cooling
- Central Air
- Heating
- Other
- MLS number
- A11990382
Listing information
Listing courtesy of DLS International Realty, 305-459-3875, dls.realtykb@gmail.com
Listing agent: Brigitte De Langeron, brigitte@miamiwaterfront.com
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MIAMI MLS. Listing data from MIAMI MLS (South East Florida Regional MLS). Information is deemed reliable but not guaranteed.
Listing information is provided for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify homes consumers may want to buy or rent.
Listing last changed .
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
The text above is the listing description from the MLS, as written by the listing agent.
The Key Biscayne market
As of , the median asking price in Key Biscayne is $2,235,000, or $1,141 per sq ft, across 147 listings for sale. The median listing for sale there has been on the market for 110 days.
Price and status history
- Listing date
- Days on market
- 202
- Original list price
- $16,800,000
- Price changes
- 0
| Date | Event | Price |
|---|---|---|
| Listed | $16,800,000 |
From the MLS. RealVista does not show sold prices.



