3 photos$19,450,000list price
Per sq ft$2,994
7 bd · 7.5 ba · 6,497 sq ft House
550 HARBOR DR #33149, KEY BISCAYNE, FL 33149
Listing courtesy of Three Bridges Realty, LLC. MLS# A12111835.On the MLS · Listed Oct 21
$19,450,000
960 MARINER DR #33149, KEY BISCAYNE, FL 33149
6 beds9 baths7,742 sq ftHouseBuilt 2025
Updated today, November 7, 2026This home against Key Biscayne
$2,512 per sq ft, 111% over the Key Biscayne median
2 days on the market
$156,000 in property taxes (2025)
15,246 sq ft lot
Private pool
Waterfront
Key Biscayne today: 134 homes for sale, median list price $2,632,500.
About this home
Discover refined waterfront living at 960 Mariner Drive in Key Biscayne. This newly completed 2025 estate offers approximately 9,640 square feet of total living space (7,742 square feet under air) on a 15,381-square-foot lot with 106 feet of private water frontage.The open-concept design features floor-to-ceiling glass, a chef’s kitchen, and seamless indoor-outdoor flow. A private 4-person elevator connects all levels, including a third-floor terrace with 360-degree views of the water and Miami skyline. Outside, a resort-style pool, summer kitchen, and private dock with ski-boat crane and direct Bay access create an exceptional setting for entertaining.Thoughtfully designed for privacy, quality, and effortless coastal living, this turnkey residence represents a rare opportunity to own one of Key Biscayne’s finest new waterfront properties.
Zoned schools
Elementary: Key Biscayne K-8 Center
Middle: Ponce de Leon Middle School
High: Coral Gables Senior High School
From Miami-Dade County Public Schools attendance zones.
Listing courtesy of The Corcoran Group. MLS# A12119438.
Listing information is provided by the MLS and is deemed reliable but not guaranteed.
Listed November 4, 2026.
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