Miami Neighborhoods
Beds
Price
Search
 

Home > Key Biscayne > A12071221

A12071221, Home in Key Biscayne for Sale

520 S Mashta Dr, Key Biscayne, FL, 33149
SALE
$19,900,000
Est. Mortgage: $89,483/mo Get pre-qualified
33 of 37 for Sale
5Beds
4 Baths
3,085 ft2 (287 m2)
Listed on: Aug 17, 2026
Days on Market: 34
  • Mortgage Calculator
  • Details
  • Currency Converter
  • View on Map
  • Schedule an Appointment

Description

Seize a rare opportunity to create a landmark waterfront estate on one of the largest residential lots in Key Biscayne’s exclusive Mashta Island enclave. Spanning an extraordinary 22,140 square feet, this exceptional property offers 138 feet of pristine water frontage and sweeping open water views, providing an unparalleled setting for a world class residence. Plans by renowned architect, Pablo Corazzini of Vitalini Corazzini Architects, are available to the buyer, offering a thoughtfully conceived vision that takes full advantage of the property’s remarkable scale, premier waterfront setting, and spectacular sunsets. The proposed design creates an extraordinary canvas for sophisticated indoor-outdoor living and entertaining, should the buyer choose to pursue the concept. With its exceptional lot size, expansive water frontage, and coveted Mashta Island address, this is a truly irreplaceable opportunity to create a legacy estate in one of South Florida’s most prestigious waterfront communities.

Interested in this Listing?

Miami Residence will connect you with an agent in a short time.

Required

A12071221 Condo # for Sale in Key Biscayne, Key Biscayne
  • Listed on:

    Aug 17, 2026
  • Days on Market:

    34
  • Taxes:

    n/a
  • Tax Year:

    n/a
  • Year Built:

  • Occupancy:

    n/a

Description

Seize a rare opportunity to create a landmark waterfront estate on one of the largest residential lots in Key Biscayne’s exclusive Mashta Island enclave. Spanning an extraordinary 22,140 square feet, this exceptional property offers 138 feet of pristine water frontage and sweeping open water views, providing an unparalleled setting for a world class residence. Plans by renowned architect, Pablo Corazzini of Vitalini Corazzini Architects, are available to the buyer, offering a thoughtfully conceived vision that takes full advantage of the property’s remarkable scale, premier waterfront setting, and spectacular sunsets. The proposed design creates an extraordinary canvas for sophisticated indoor-outdoor living and entertaining, should the buyer choose to pursue the concept. With its exceptional lot size, expansive water frontage, and coveted Mashta Island address, this is a truly irreplaceable opportunity to create a legacy estate in one of South Florida’s most prestigious waterfront communities.
Any questions about Key Biscayne?
Contact our Key Biscayne Real Estate Specialist today.
0.153933048248