360 Harbor Lane, Key Biscayne, FL

About this home

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.

Area

Key Biscayne

MLS #

A12104430

Listing agent

Judith H Zeder

Living area (m²)

403 m²

Price per m²

$24,671

Property tax (per year)

$31,314 (2025)

Year built

2025

Floors in the building

2

Parking

Covered: 2

Pets

Allowed

Furnished

Unfurnished

Private pool

Yes

Flooring

Marble, Wood

View

Garden, Pool

Listed

October 19, 2026

Days on market

3

Interior features

• Built In Features
• Closet Cabinetry
• Dining Area
• Separate Formal Dining Room
• Dual Sinks
• Entrance Foyer
• High Ceilings
• Kitchen Dining Combo
• Living Dining Room
• Main Level Primary
• Sitting Area In Primary
• Separate Shower
• Upper Level Primary
• Walk In Closets

Exterior features

• Built In Barbecue
• Balcony
• Barbecue
• Lighting
• Outdoor Living Area

Parking features

• Attached Carport
• Carport
• Driveway
• Paver Block

Appliances

• Dryer
• Dishwasher
• Electric Range
• Disposal
• Microwave
• Oven
• Refrigerator
• Water Purifier
• Washer