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- Pink Miami
- Key Biscayne
- 520 S MASHTA DR
For Sale
Listed on August 12, 2026
520 S MASHTA DR
$18,500,000
5 Beds
4 Baths
3,085 sqft
2 Parkings
Lot size:
22,140 sqft
Annual Tax:
$201,741
Occupancy:
Contact Agent
Year Built:
1961
Property type:
House
#MLS:
A12071221
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.
Coldwell Banker Realty
Features & Details
Learn about the features and details of 520 S MASHTA DR
Property Details
- Property Type:SingleFamilyResidence
- Living Area:3,085 sqft
- Year Built:1961
- Lot Size:22,140 sqft
- Stories:-
- Annual Tax:$201,741
- List Date:8/12/2026
- Updated:10/24/2026
- Last Checked:Recent
- MLS Number:#A12071221
- Brokerage:Coldwell Banker Realty
- Postal Code:33149
- Area:Miami-Dade
- City:Key Biscayne
Additional Property Features
- Occupancy:CallAgent
- List Price:$18,500,000
- Unit Number:-
- Construction:Block
- Heating:Central
- Fireplaces:-
- Garage:2 Car Garage
- Parking Type:No
- Pets Allowed:No
- Air Conditioning:Central Air
- Elevator:No
- Locker:No
- Swimming Pool:InGround,Pool
- Patio:No
- Basement:No
- Den:No
- Central Vacuum:No
- Garage Type:No
Additional Listing Information
- Walk Score:–
- Property Manager:-
- Utilities Included:None
- Furnished:No
- Assessment Year:2026
- Assignment:No
- Extras Included:Other
- Virtual Tour:View virtual tour
Inside
- Bedrooms & Baths:5 Bed, 4 Bath
- Bedrooms:5
- Full Bathrooms:4
- Ensuite:Yes
- Bathrooms:4
- Flooring:Mixed
Price history
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Explore Miami-Dade
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FAQs About 520 S MASHTA DR
520 S MASHTA DR, MLS® A12071221 has a size of 3085 sqft.
There are 5 bedrooms and 4 bathrooms in this House at 520 S MASHTA DR, MLS® A12071221.
Yes, there is parking available with 2 spot(s).
Annual taxes for this home are $201,741 based on 2026 tax year reports.
Based on information from the Miami Association of REALTORS®. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information.
©2025 Miami Association of REALTORS® all rights reserved.
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520 S MASHTA DR
520 S MASHTA DR
