Robert T Fournier - 786-286-6960
Inquire About this Property
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.
| Address | Unit # | Price | %Chng | Bed/Bath | Square Feet | Square m2 | Maint/$ |
|---|---|---|---|---|---|---|---|
| 2637 SW Monterrey Ln | $339,000 | 4/2 | 2,236 | 208 | $0 | ||
| 738 Fernwood Rd | $2,875,000 | 3/2 | 1,312 | 122 | $0 | ||
| 691 Ridgewood Rd | $3,800,000 | 4/3 | 3,403 | 316 | $0 | ||
| 797 Glenridge Rd | $5,200,000 | 5/4 | 3,535 | 328 | $0 | ||
| 164 W Mashta Dr | $5,200,000 | 5/5 | 3,595 | 334 | $0 | ||
| 690 Warren Ln | $5,478,000 | 4/3 | 3,549 | 330 | $0 | ||
| 561 Warren Ln | $5,995,000 | 5/5 | 3,762 | 349 | $0 | ||
| 760 Woodcrest Rd | $6,395,000 | 5/5 | 4,003 | 372 | $0 | ||
| 685 Harbor Ln | $6,950,000 | 5/5 | 5,421 | 504 | $0 | ||
| 571 Glenridge Rd | $7,490,000 | 5/5 | 3,768 | 350 | $0 | ||
| 545 SABAL PALM | $7,950,000 | 5/4 | 4,166 | 387 | $0 | ||
| 625 Curtiswood Dr | $9,200,000 | 5/5 | 4,416 | 410 | $0 | ||
| 861 Harbor Dr | $9,500,000 | 5/4 | 3,405 | 316 | $0 | ||
| 31 Island Dr | $9,800,000 | 6/6 | 5,826 | 541 | $0 | ||
| 420 Island Dr | $12,485,000 | 6/6 | 6,405 | 595 | $0 |
| Unit # | Closed Date | Sold Price | List Price | Bed | Bath | Living Area | Days on Market |
|---|---|---|---|---|---|---|---|
| 04/13/2026 | $2,850,000 | $2,950,000 | 3 | 2 | 2,388 | 2 months | |
| 03/09/2026 | $3,125,000 | $3,470,000 | 5 | 3 | 2,429 | 6 months | |
| 02/26/2026 | $21,000,000 | $23,500,000 | 6 | 6 | 8,031 | 11 months |
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