$18,500,000
4 bd · 4.5 ba · 2,255 sqft
631 N Mashta Drive, Key Biscayne FL 33149
$16,800,0004 Beds4 Baths3,620 Sq. Ft.$4,641 / sq. ft.
640 S Mashta Dr, Key Biscayne FL 33149
Key Biscayne, FL 33149 · MASHTA ISLAND
Status
Active
Type
Single Family Residence
Year Built
1968
Days on Market
65
Lot Size
15,000 sqft
MLS #
A11990382
County
Miami-Dade County
Description of 640 S Mashta Dr, Key Biscayne FL 33149
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
Property Details for 640 S Mashta Dr, Key Biscayne FL 33149
- Bathrooms Full
- 4
- Bathrooms Half
- 0
- Interior Features
- First Floor Entry, Entrance Foyer, Pantry, Split Bedroom, Vaulted Ceiling(s), Walk-In Closet(s), Garage Converted
- Appliances
- Dishwasher
- Flooring
- Other
- Heating
- Other
- Cooling
- Central Air
- Architectural Style
- Attached, Other
- Garage Spaces
- 2
- Attached Garage
- Yes
- Parking Features
- Driveway, Guest
- Pool Features
- In Ground
- Pool Private
- No
- Year Built Details
- Resale
- Direction Faces
- East
Building Information for 640 S Mashta Dr, Key Biscayne FL 33149
- Building Name
- MASHTA ISLAND
- Building Area Total
- 4990
- Building Area Units
- Square Feet
- Association
- No
- Pets Allowed
- Dogs OK
Property Information for 640 S Mashta Dr, Key Biscayne FL 33149
- Lot Features
- Less Than 1/4 Acre Lot
- Lot Size Square Feet
- 15,000
- Waterfront
- Yes
- Waterfront Features
- Ocean Access, Ocean Front
- Frontage Length
- 100
- View
- Bay, Garden
- Construction Materials
- Concrete Block Construction
- Roof
- Barrel Roof
- Exterior Features
- Other
- Sewer
- Public Sewer
- Water Source
- Municipal Water
- New Construction
- No
Public Records for 640 S Mashta Dr, Key Biscayne FL 33149
- Parcel Number
- 24-52-05-008-0320
- Tax Annual Amount
- $155,651
- Tax Year
- 2,025
- Tax Legal Description
- MASHTA ISLAND PB 60-93 LOT 9 BLK 3 LOT SIZE 100.000 X 150 OR 18642-3922 0599 1
- Zoning
- 2001
- County Or Parish
- Miami-Dade County
Schools Near 640 S Mashta Dr, Key Biscayne FL 33149
- Elementary School
- Keybiscayne
- Middle School
- Ponce De Leon
- High School
- Coral Gables
School assignments are provided by the listing and should be independently verified.
Location
640 S Mashta Dr, Key Biscayne FL 33149 · More homes in Key Biscayne
Courtesy of DLS International Realty
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More information about 640 S Mashta Dr, Key Biscayne FL 33149
640 S Mashta Dr is a single family home for sale in Key Biscayne, FL 33149. This property was listed for sale on April 2, 2026 by DLS International Realty, it's currently listed at $16,800,000. This listing's school district is Miami-Dade County Public Schools. Nearby schools include Keybiscayne, Ponce De Leon and Coral Gables. 640 S Mashta Dr is a 4-bed, 4-bath, 3,620 sqft single family home built in 1968.