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6 Beds
6 Baths
4,341 sqft

$9,950,000

360 Harbor, Key Biscayne FL, 33149

Price per sqft$2,292.10
Built in2025
Property size4,341 sqft
Property typeResidential
Courtesy of Judith Zeder with Coldwell Banker Realty

Overview

Active

Listed Oct 19, 2026

Updated 16h ago

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.

$66,198/mo

Est. mortgage payment based on a $9,950,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
A12104430

Interior Features

Bedrooms
6
Bathrooms
6
Cooling
Yes
Heating
Yes
Basement
No

Exterior Features

Lot Size
0.21 Acres

Other Property Details

Taxes
$31,314
Tax Frequency
Annually
View
Yes
Pets Allowed
Yes
Pool
Yes
55+/Senior Community
No
MLS provider logo

Courtesy of Coldwell Banker Realty, Judith Zeder,
Listing Contact: 305-613-5550 

Based on information from Martin County REALTORS of the Treasure Coast, Inc. (RAMC) as of 10/21/2026. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.

©2026 Martin County REALTORS of the Treasure Coast, Inc. All rights reserved.

Data last updated 4:59 AM UTC, 10/21/2026

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