520 S Mashta Dr

Key Biscayne, FL 33149

-5.5% ($1,100,000)

520 S Mashta Dr

Key Biscayne, FL 33149

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.

Location

Listing Courtesy of Douglas Elliman

Property Information

General Information
    General Information
  • For Lease: No
  • Pet Restrictions : No
  • County Or Parish : Miami-Dade
  • Zip Code : 33149
  • City : Key Biscayne
  • List Price : $18,900,000
    Maintenance / Tax Information
  • Tax Amount : $179582
  • Tax Year : 2023
  • Membership Required : No
    Building Information
  • Property Type : Residential
  • Subdivision : MASHTA ISLAND A REPLAT OF
Virtual Tour / Features / Utilities
    Interior
  • Room Count : 0
  • Equipment Appliances : Other
  • Floor Description : Tile
  • Interior Features : Bedroom On Main Level, First Floor Entry, Split Bedrooms
  • Beds Total : 5
  • Num of Full Baths : 4
  • Num of Half Baths : 0.0
  • Spa : No
    Exterior
  • Exterior Features : Security High Impact Doors
  • Construction Type : Block
  • Design : One Story
  • Front Exposure : East
  • Pool : Yes
  • Pool Description : InGround, Pool
  • Roof Description : Barrel Roof, SpanishTile
  • Horse Amenities : No
    Waterfront
  • Waterfront Frontage : 138
  • Waterfront Description : Bayfront,Seawall
    Parking
  • Parking Description : Driveway
    Utilities
  • Cooling Description : CentralAir
  • Heating Description : Central
  • Sewer Description : PublicSewer
Property / Lot Information
    Building Information
  • Parcel Number Free Text: 24-52-05-009-0170
  • Zoning Information: 2001
  • Num Garage Spaces: 2
    Lot Information
  • Lot Sq Footage : 22,140
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520 S Mashta Dr is a waterfront home for sale in Key Biscayne, FL 33149. This property was listed for sale on Oct 29, 2024 by Douglas Elliman for $18,900,000. Located in MASHTA ISLAND A REPLAT OF is a 5-bed, 4-bath, 3,085 sqft home built in 1961.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and expressly disclaim any liability in connection therewith. No financial or legal advice provided and fully support the principles of the Fair Housing Act and the Equal Opportunity Act.

The data provided by Miami Association of REALTORS® MLS comes from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2025 Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers’ personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All data provided is deemed reliable but is not guaranteed accurate, and should be independently verified.

Miami Association of Realtors MLS data last updated on Mar 12, 2025.

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