House for Sale
$7,599,000
6 bd · 8 ba · 3,980 sqft
315 Cypress Dr, Key Biscayne, FL 33149
TROPICAL ISLE HOMES SUB 4
Key Biscayne, FL 33149 · MLS# A12104430 · Active · BISCAYNE KEY ESTATES
Discreetly set in the heart of Key Biscayne — one of Miami’s most coveted island communities — this elegant modern two-story residence offers 5,156 SF of total space on a lush 9,300 SF lot with 6 bedrooms, 5.5 bathrooms, and a private office, perfectly balancing refined design with the relaxed island lifestyle. A travertine staircase entry and wrap-around porch with modern glass railings set a sophisticated tone, leading inside to soaring ceilings, herringbone oak floors by Listone Giordano, floor-to-ceiling sliding doors, and Lutron lighting. The open-concept living, dining, and family areas flow seamlessly to the outdoors. The chef’s kitchen showcases a striking fluted marble island with curved-edge countertops, floor-to-ceiling cabinetry by Design It, and a full Wolf and Sub-Zero appliance suite. The primary suite features a private terrace, dual custom walk-in closets, a dry sauna, and a show-stopping bath with aquamarine quartzite sourced from ARCA, dual Waterworks vanities, and a frameless glass shower. Outside, a covered terrace with fluted wood-paneled ceiling, summer kitchen with built-in grill and pizza oven, and a heated saltwater pool with marble deck and Baja ledge create the ultimate island retreat. Professionally designed landscaping and enchanting exterior uplighting illuminate the lush gardens, creating picturesque views through the home’s expansive glass walls, particularly after sunset. Integrated sound and four AC units complete this exceptional offering.
School assignments are provided by the listing and should be independently verified.
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.
360 Harbor Ln, Key Biscayne, FL 33149 · See all Key Biscayne homes for sale
House for Sale
$7,599,000
6 bd · 8 ba · 3,980 sqft
TROPICAL ISLE HOMES SUB 4
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$7,490,000
5 bd · 7 ba · 3,768 sqft
TROPICAL ISLE HOMES SUB
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$6,950,000
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BISCAYNE KEY ESTATES
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$7,390,000
6 bd · 7 ba · 4,043 sqft
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$9,800,000
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CAPE FLORIDA SUB SEC 3
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$8,000,000
6 bd · 6 ba · 1,044 sqft
TROPICAL ISLE HOMES SUB
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$8,500,000
6 bd · 7 ba · 4,190 sqft
TROPICAL ISLE HOMES SUB 4
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$7,450,000
7 bd · 9 ba · 4,565 sqft
TROPICAL ISLE HOMES SUB 3
360 Harbor Ln is a single family home for sale in Key Biscayne, FL 33149. This property was listed for sale on October 19, 2026 by Coldwell Banker Realty, it's currently listed at $9,950,000. This listing's school district is Miami-Dade County Public Schools. Nearby schools include Keybiscayne, Ponce De Leon and Coral Gables. 360 Harbor Ln is a 6-bed, 6-bath, 4,341 sqft single family home built in 2025.