$14,990,000
Active
$14,990,000
161 Cape Florida
Key Biscayne, FL 33149
4 bd4.5 ba6,661 sqft
Cape Florida Sub Sec 3
$19,900,0007 days on marketActive
520 S Mashta Drive, Key Biscayne, FL 33149
Key Biscayne, FL 33149
5
Beds
4
Baths
3,085
Sq Ft
$6,451
$/Sq Ft
1961
Year Built
2 car
Garage
0.51 acres
Lot Size
Listing Snapshot
| List Price | $19,900,000 |
| Price / Sq Ft | $6,451 |
| Beds | 5 |
| Baths | 4 |
| Living Area | 3,085 sqft |
| Lot Size | 0.51 acres |
| Year Built | 1961 |
| Property Tax | $201,741/yr |
| MLS # | 1182392784 |
| Status | Active |
| Days on Market | 7 |
About This Home
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.
General Features
- Property Type
- Residential
- Sub-type
- SingleFamilyResidence
- Stories
- 1
- Direction Faces
- East
- Garage Spaces
- 2
- Parking
- Driveway
- Zoning
- 2001
- Subdivision
- MASHTA ISLAND A REPLAT OF
Interior Features
- Flooring
- Tile
- Heating
- Central
- Cooling
- CentralAir
- Interior Features
- MainLevelPrimary,SplitBedrooms
Exterior Features
- Construction
- Block
- Roof
- Barrel,SpanishTile
- Pool
- Yes
- Pool Features
- InGround
- View
- Bay,Ocean
- Waterfront
- Yes
- Waterfront Features
- Bayfront,OceanAccess,Seawall
Community Features
- Association Amenities
- Other
- MLS Area
- 2520
Schools
ElementaryKey Biscayne K-8
MiddlePonce De Leon
HighCoral Gables
Map
Virtual Tour
View Virtual TourListed by Maureen Jauregui · Coldwell Banker Realty
MLS# 1182392784 · BEACH
Information deemed reliable but not guaranteed. © 2026 BEACH.
MLS# 1182392784 · BEACH
Information deemed reliable but not guaranteed. © 2026 BEACH.
Interested in this home?
Schedule a showing or ask a question — buyer representation is free.
Estimate Your Payment
$
20% down · Loan: $15,920,000
%
Est. Monthly$125,414
Principal & Interest$108,602
Property Tax$16,812
Estimate only. Does not include insurance or PMI. Rate is illustrative — contact us for current rates.
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