Brett Colby, Realtor®, Owner

520 S Mashta Drive Key Biscayne, FL 33149

5 Bedroom, 3,085 Sqft, Single Family Residence

AGENT'S REMARKS ABOUT 520 S MASHTA DRIVE

Seize a rare opportunity to create a landmark waterfront estate on one of the largest residential lots in Key Biscaynes 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 propertys 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 Floridas most prestigious waterfront communities.

PROPERTY DETAILS

  • Property Type: Single Family Residence
  • Approx Living Area: 3,085 SqFt
  • Total Bedrooms: 5
  • Bathrooms: 4 Full
  • Year Built: 1961
  • Lot Size: 22,140 SqFt
  • Garage Spaces: 2
  • Stories: 1
  • Parking Type: Driveway
  • Interior: Bedroom Layout - Split
  • Other Appliances: Other
  • Flooring: Tile
  • Pool Description: In Ground
  • Roof: Barrel, Spanish Tile
  • Total Floors in Building: 1
  • House Faces/Primary View: East
  • Construction: Block
  • Cooling System: Central Air
  • Heating: Central
  • County: Miami-Dade
  • Area: 2520
  • Subdivision: MASHTA ISLAND A REPLAT OF
  • Community Features: Other
  • Age Restricted: No
  • Annual Property Taxes: $201,741
  • Elementary School: Key Biscayne K-8
  • Junior High School: Ponce De Leon
  • High School: Coral Gables

MAP LOCATION FOR 520 S MASHTA DRIVE KEY BISCAYNE, FL 33149

SIMILAR LISTINGS NEAR 520 S MASHTA DRIVE

$18,500,000

4 bd • 4 ba • 2,255 Sq Ft

631 N Mashta Drive Key Biscayne FL, 33149

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350 Ocean Drive LPH2N Key Biscayne FL, 33149

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Do you have questions about 520 S Mashta Drive Key Biscayne, FL 33149? Contact us for more information and to schedule a tour. Brett Colby Group is a local top real estate service in Palm Beach County, FL.

Brett Colby
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Text or call (561) 903-4200
Listing courtesy of Coldwell Banker Realty 08.19.2026