House for Sale
$9,950,000
6 bd · 6 ba · 4,341 sqft
360 Harbor Ln, Key Biscayne, FL 33149
BISCAYNE KEY ESTATES
Key Biscayne, FL 33149 · MLS# A11812864 · Active · CAPE FLORIDA SUB SEC 1
Spectacular and impeccably appointed modern residence situated on a 13,651 SF lot on prestigious Island Drive—one of Key Biscayne’s most elevated streets. Boasting a total of 8,011 SF, this 6-bedroom, 6 full bath + 2 half bath home is open, bright, and flooded with natural light throughout. Enjoy breathtaking water views and private access to the water in a setting that blends refined luxury with ultimate privacy. This residence showcases exquisitely curated, high-end designer finishes, a dramatic wine cellar, two expansive family rooms, and a closed 2-car garage. The outdoor living area is equally impressive, featuring a sleek summer kitchen and lush, professionally designed landscaping—ideal for elegant island living and entertaining. Per approved plans 6,405 SF under AC -8,682 SF Total
Estimate only — actual rates, taxes and insurance vary. Not a loan offer or financial advice. Financing through Matthew Gromadzki, NMLS #2560919 · Innovative Mortgage Services, Inc., NMLS #250769.
420 Island Dr, Key Biscayne, FL 33149 · See all Key Biscayne homes for sale
House for Sale
$9,950,000
6 bd · 6 ba · 4,341 sqft
BISCAYNE KEY ESTATES
House for Sale
$16,500,000
6 bd · 7 ba · 7,103 sqft
CAPE FLORIDA SUB SEC 3
House for Sale
$14,490,000
4 bd · 6 ba · 6,661 sqft
CAPE FLORIDA SUB SEC 3
House for Sale
$9,800,000
6 bd · 7 ba · 5,826 sqft
CAPE FLORIDA SUB SEC 3
House for Sale
$8,500,000
6 bd · 7 ba · 4,190 sqft
TROPICAL ISLE HOMES SUB 4
House for Sale
$16,800,000
4 bd · 4 ba · 3,620 sqft
MASHTA ISLAND
420 Island Dr is a single family home for sale in Key Biscayne, FL 33149. This property was listed for sale on May 30, 2025 by BHHS EWM Realty, it's currently listed at $12,485,000. This listing's school district is Miami-Dade County Public Schools. 420 Island Dr is a 6-bed, 8-bath, 6,405 sqft single family home built in 2017.