520 S Mashta DrKey Biscayne, FL 33149

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.

Property Information

Property type

Residential

Sub-type

Single Family Residence

Style

OneStory

Year built

1961

Living area

3,085 Sq Ft

Lot size

22,140 Sq Ft

Garage spaces

2

Days on market

67

MLS^® Listing#

A12071221

Property Features

Interior

Master Downstairs

Appliances

Other

Cooling

Central Air

Heating

Central

Flooring

Tile

Pool

In Ground · Private

Parking

Driveway

Lot features

Waterfront

Construction

Block

Roof

Barrel · Spanish Tile

Community

Other

Sewer

Public Sewer

Water source

Public

Schools

Elementary

Keybiscayne

Middle

Ponce De Leon

High

Coral Gables

Financial Details

Annual taxes

$201,741Tax year 2026

Parcel number

24-52-05-009-0170