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THE SOURCE OF THE DISPLAYED DATA IS EITHER THE PROPERTY OWNER OR PUBLIC RECORD PROVIDED BY NON-GOVERNMENTAL THIRD PARTIES. IT IS BELIEVED TO BE RELIABLE BUT NOT GUARANTEED. FOR COLORADO VIEWERS, INFORMATION ABOUT NON-COMMERCIAL PROPERTIES IS PROVIDED EXCLUSIVELY FOR YOUR PERSONAL, NON-COMMERCIAL USE.

575 MADISON AVENUE, NEW YORK, NY 10022. 212.891.7000 © 2025 DOUGLAS ELLIMAN REAL ESTATE. EQUAL EMPLOYMENT OPPORTUNITY PROVIDER. ALL MATERIAL PRESENTED HEREIN IS INTENDED FOR INFORMATION PURPOSES ONLY. WHILE THIS INFORMATION IS BELIEVED TO BE CORRECT, IT IS REPRESENTED SUBJECT TO ERRORS, OMISSIONS, CHANGES, OR WITHDRAWAL WITHOUT NOTICE. ALL PROPERTY INFORMATION, INCLUDING, BUT NOT LIMITED TO SQUARE FOOTAGE, ROOM COUNT, NUMBER OF BEDROOMS, AND THE SCHOOL DISTRICT IN PROPERTY LISTINGS SHOULD BE VERIFIED BY YOUR OWN ATTORNEY, ARCHITECT, OR ZONING EXPERT. EQUAL HOUSING OPPORTUNITY.LISTING DATA REFRESHED ON MAY 22 2025 AT 7:39 AM.

DOUGLAS ELLIMAN IS A LICENSED REAL ESTATE BROKER IN CALIFORNIA WITH LICENSE # 01947727, COLORADO WITH LICENSE # EC100053892, CONNECTICUT WITH LICENSE # REB.0314827, THE DISTRICT OF COLUMBIA WITH LICENSE # REO40000160, FLORIDA WITH LICENSE # CQ1020232, MARYLAND WITH LICENSE # 645270, MASSACHUSETTS WITH LICENSE # 422764, NEVADA WITH LICENSE # 1454643, NEW JERSEY WITH LICENSE # 0572105, NEW YORK WITH LICENSE # 10991211812, TEXAS WITH LICENSE # 9008706, AND VIRGINIA WITH LICENSE # 0226035659.

POWERED BY PURLIN.AI

520 S Mashta Dr

key biscayne, FL 33149

$18,900,000

  • 5 BR
    4 BA
    APPROX. 3,085 SF
  • logodouglas elliman exclusive

GET IN TOUCH WITH OUR AGENTS

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.

Details

3,085 Sq Ft

0.51 Private Acres Exterior Space

Single Family Home

$179,582 Annual Tax

Built in 1961

MLS/Listing ID A11684094

MASHTA ISLAND A REPLAT OF

Amenities & Features

First Floor Entry

Tile

High Impact Doors

Cooling - Central Air

Family Room

Split Bedrooms

Community - Other Subdivision - See Remarks

Style - One Story

Style - Attached

Other Equipment/Appliances

Seawall

Ocean Access

Ocean View

Bay View

Curved/S-Tile Roof

Barrel Roof

Parking - Driveway

Pool - Inground

Pets Allowed

Listing Courtesy of DOUGLAS ELLIMAN, JONATHAN MATOS - 786-390-3716

MIAMIRE

Source of Data: MIAMI ASSOCIATION OF REALTORS

Interested in 520 S Mashta Dr?