520 S Mashta Dr Key Biscayne FL 33149 MLS #A11684094

520 S Mashta Dr
Key Biscayne, FL, 33149
$18,900,000
5 Beds
4 Baths
4,177 SqFt
0 Acres
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Seize the rare chance to create your dream estate on one of the largest lots in Key Biscayne’s prestigious Mashta Island community. This 22,140-square-foot property features 138 feet of pristine water frontage, offering breathtaking open-water views—an ideal backdrop for a grand residence. Collaborate with the renowned Corazzini & Associates, known for their award-winning designs that merge elegance with functionality. Enjoy spectacular sunsets visible throughout your home, perfect for relaxation and entertaining. Included are fully approved plans and permits for a stunning 8-bedroom, 8.5-bath, 10,000-square-foot estate, ensuring a seamless start to your vision. Don’t miss this once-in-a-lifetime opportunity to establish a legacy in one of South Florida’s most prestigious enclaves.

Property Details

Price:
$18,900,000
MLS #:
A11684094
Status:
Active
Beds:
5
Baths:
4
Address:
520 S Mashta Dr
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
MASHTA ISLAND A REPLAT OF
Neighborhood:
Mashta Island A Replat Of
City:
Key Biscayne
Listed Date:
Oct 29, 2024
State:
FL
Finished Sq Ft:
4,177
Total Sq Ft:
4,177
ZIP:
33149
Year Built:
1961
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CENTURY 21 Carioti

CENTURY 21 Carioti

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Schools

Interior

Appliances
Other Equipment/ Appliances
Bathrooms
4 Full Bathrooms
Cooling
Central Air
Flooring
Tile
Heating
Central

Exterior

Architectural Style
Attached, One Story
Community Features
Other Subdivision – See Remarks
Parking Features
Driveway
Roof
Barrel Roof, Curved/ S- Tile Roof

Financial

Tax Year
2023
Taxes
$179,582

Map

Community

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Courtesy of Douglas Elliman. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the Miami, FL. Detailed information about real estate listings held by brokerage firms other than CENTURY 21 Carioti include the name of the listing broker. Neither the listing company nor CENTURY 21 Carioti shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2025. Miami, FL. All rights reserved.
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520 S Mashta Dr
Key Biscayne, FL