Single-family home for sale

$9,950,000

360 Harbor LnKey Biscayne, FL 33149

  • 6 Beds
  • 5.5 Baths
  • 4,341 Sq ft
  • 9,300 Lot sq ft
  • 2025 Built

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.

Details

MLS #
A12104430
Property type
Single-family home
Status
Active
Days on market
4
Neighborhood
BISCAYNE KEY ESTATES
County
Miami-Dade County
Property taxes
$31,314 (2025)
Waterfront
No
Private pool
No
View
Garden, Pool
Cooling
Central Air, Electric
Interior features
First Floor Entry, Built-in Features, Closet Cabinetry, Entrance Foyer, Other, Volume Ceilings, Walk-In Closet(s), Den/Library/Office, Family Room, Maid/In-Law Quarters, Utility Room/Laundry
Exterior features
Built-In Grill, Lighting, Open Balcony
Appliances
Dishwasher, Disposal, Dryer, Electric Range, Microwave, Other Equipment/Appliances, Water Purifier, Refrigerator, Wall Oven, Washer

Location

Estimated payment

$52,922/mo with 20% down at 6.5% for 30 years, including taxes, before insurance.

Adjust in the mortgage calculator

Listing courtesy of Coldwell Banker Realty · Judith Zeder. Listing last updated October 23, 2026 11:19 AM.

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The multiple listing information is provided by the MIAMI Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are © 2026 MIAMI Association of REALTORS®. All rights reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Data last updated October 31, 2026 7:01 AM.

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