$16,800,000list price
Per sq ft$4,641
4 bd · 4 ba · 3,620 sq ft House
640 S MASHTA DR #33149, KEY BISCAYNE, FL 33149
Listing courtesy of DLS International Realty. MLS# A11990382.On the MLS · Listed Mar 31
$14,490,000
161 CAPE FLORIDA DR #33149, KEY BISCAYNE, FL 33149
4 beds5 baths6,661 sq ftHouseBuilt 1983
Updated today, November 3, 2026This home against Key Biscayne
$2,175 per sq ft, 79% over the Key Biscayne median
94 days on the market
Price cut $500,000 since it was listed at $14,990,000
$148,596 in property taxes (2025)
14,375 sq ft lot
Private pool
Waterfront
Key Biscayne today: 129 homes for sale, median list price $2,725,000.
About this home
Best-priced waterfront residence on Key Biscayne, offering an exceptional 100 feet of water frontage and a true boater's paradise. Tucked away on one of Paradise Island's most private and exclusive streets, this extraordinary residence is where contemporary design meets the serenity and exclusivity of life on the water.Thoughtfully and completely remodeled, including a brand-new roof, the home is bathed in natural light, enhanced by soaring ceilings, and showcases a sophisticated open-concept floor plan designed for both effortless everyday living and exceptional entertaining. Expansive social spaces flow seamlessly to a spectacular outdoor oasis featuring a resort-style pool, generous sun-drenched terraces, and a fully equipped summer kitchen…creating the perfect backdrop for unforgettable gatherings. Designed with both luxury and versatility in mind, the residence offers four spacious ensuite bedrooms, four full bathrooms, a powder room, and a cabana bath. A private office and a dedicated gym provide exceptional flexibility and can easily be transformed into a fifth bedroom, guest suite, media room, or additional living space to suit your family's lifestyle. Situated on a wonderful 14,500 SF lot, this remarkable property offers an extraordinary sense of privacy. Modern, refined, and impeccably appointed, this is more than just a home…it is a private waterfront sanctuary where timeless architecture, elegant interiors, and the beauty of island living come together as one.
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 One Sotheby's International Realty. MLS# A12051668.
Listing information is provided by the MLS and is deemed reliable but not guaranteed.
Listed August 1, 2026.
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