Single-family home for sale
$18,500,000
520 S Mashta DrKey Biscayne, FL 33149
- 5 Beds
- 4 Baths
- 3,085 Sq ft
- 22,140 Lot sq ft
- 1961 Built
About this home
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.
Details
- MLS #
- A12071221
- Property type
- Single-family home
- Status
- Active
- Days on market
- 72
- Neighborhood
- MASHTA ISLAND A REPLAT OF
- County
- Miami-Dade County
- Property taxes
- $201,741 (2026)
- Waterfront
- Yes
- Private pool
- No
- View
- Bay, Direct Ocean
- Garage spaces
- 2
- Cooling
- Central Air
- Interior features
- First Floor Entry, Split Bedroom, Family Room
- Appliances
- Other Equipment/Appliances
Location
Estimated payment
$110,358/mo with 20% down at 6.5% for 30 years, including taxes, before insurance.
Adjust in the mortgage calculatorListing courtesy of Coldwell Banker Realty · Maureen Jauregui. Listing last updated October 23, 2026 1:08 PM.