520 Mashta Dr, Key Biscayne, FL 33149
Days Listed
84
Beds
5
Baths
4
Interior
3085 ft2 (287m2)
Market
Key Biscayne
Direction
East
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.
| Floor Plans
- Days On Market:84Listed:Aug 17, 2026
- Size:3085 ft2 (287m2)Rooms:5
- Bathrooms:4Baths Half:0
- Terms:All Cash, ConventionalProperty Facing:East
- Last Modification:1 week agoPrice Change:-7.04%
Property Taxes and Assessment
- Annual Tax$201,741
- Tax Year2026
- Maintenance FeeN/A
- Association FeeN/A
- TermsAll Cash, Conventional
Property Features
| Facts and features |
|---|
| Views Bay Direct Ocean Ocean Access Seawall |
| Interior Features First Floor Entry Split Bedroom Family Room |
| Appliances Other Equipment/Appliances |
| Parking Driveway |
| Other Facts |
|---|
| Heating Central |
| Cooling Central Air |
| Flooring Tile |
| Door Features High Impact Doors |
| Roof Barrel Roof Curved/S-Tile Roof |
| Water Source Municipal Water |
| Sewer Public Sewer |
| Amenities |
|---|
| Pool Features In Ground |
| Community Features Other Subdivision - See Remarks |
| Architectural Style Attached One Story |
| Construction Materials Concrete Block Construction |
| Structure Type House |
| Schools |
|---|
| Elementary School Keybiscayne |
| Middle Or Junior School Ponce De Leon |
| High School Coral Gables |
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