Single Family Residence For Sale

520 S Mashta Drive, Key Biscayne, FL 33149

$19,900,000
5 Bedrooms
4 Bathrooms
3,085
Property 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.

Basic Details
Listing Type : For Sale
Price : $19,900,000
Bedrooms : 5
Bathrooms : 4
View : Bay, Ocean
Square Footage : 3,085
Full Bathrooms : 4
Property Sub Type : Single Family Residence
Field 3132 : Other
Features
: Central Air
: Driveway
Public Sewer
Central
Tile
In Ground
Barrel, Spanish Tile
Location
US
FL
Miami-Dade
Key Biscayne
33149
2520
520 S Mashta Drive, Key Biscayne, Florida 33149
Extended Details
Main Level Primary, Split Bedrooms
Virtual Tour URL
MASHTA ISLAND A REPLAT OF
08.12.2026
Key Biscayne K-8
Ponce De Leon
Coral Gables
Block
Yes
Other
2
East
2001
$0
Coldwell Banker Realty
Maureen Jauregui
4177
SEF3257300
SEFCBRE07
1
One
Active
2026-08-12
Listed As-Is
2026-08-12T00:00:00Z
1
1
201741
Public
Emma L Jauregui
Coldwell Banker Realty
Beaches
Property TypeSingle Family Residence
StatusActive
Listing IDA12071221
Year Built1961
Lot Area22,140
Mortgage Calculator
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Realtyna

Nadereh (Nana) Rezaie, P.A.  Broker Associate, Certified Luxury Home Marketing Specialist™ GUILD™

Nana Rezaie 561-660-1948

Office: 561-660-1948 1400 Corporate Center Way, Second Floor, Wellington, FL 33414 Each office independently owned and operated 561-472-1236 .

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