$12,375,000

640 S Mashta Dr, Key Biscayne FL, 33149

Price per sqft$3,418.51

Built in1968

Property size3,620 sqft

Property typeResidential

Overview

Sold

Closed

Listed Jun 25, 2024

Updated Jul 22

Welcome to Heaven on Earth! Fish off your own dock and enjoy stunning sunset views from 100’ of direct Biscayne Bay waterfront in this iconic trophy property on the quiet side of Key Biscayne’s exclusive Mashta Island. Move in, renovate or build your dream home on this 15,000 SF lot. Enter into open-flow indoor-outdoor living, dining, and kitchen, with floor-to-ceiling sliding glass walls overlooking the sparkling screened pool, the wide bay and the boat dock—truly an entertainer’s delight! Sleep easy with five bedrooms and five full baths, including two water-facing principal suites and closets galore, plus impact windows-doors. Plenty of parking, with an oversized two-car garage plus covered parking and large guest driveway. One visit, and it will be clear—heaven on earth is right here!

Additional information

MLS^® ID: A11611809

Interior Features

Bedrooms: 5
Bathrooms: 5
Cooling: Yes
Heating: Yes
Basement: No

Exterior Features

Lot Size: 0.34 Acres

Other Property Details

Taxes: $80,770
Tax Frequency: Annually
Garage: Yes
View: Yes
Pets Allowed: Yes
Pool: Yes
Waterfront: Yes

Based on information from the Miami Association of REALTORS®. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed.

Data last updated 1:12 PM UTC, 7/22/2026.

Listed by: Graber Realty Group LLC, 786-362-5672