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360 Harbor Ln, 
Key Biscayne, FL 33149

$9,950,000


6

Beds


6

Baths


4,341

Sq Ft


Single Family


Virtual Tour

Active

786-472-4024

Last updated:

October 24, 2026, 12:54 AM

MLS#

A12104430

Source:

SEFMLS

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About This Home

360 Harbor Ln

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.

Home Facts

Single Family

6 Baths

6 Bedrooms

Built in 2025

Subdivision & Development:

BISCAYNE KEY ESTATES

Price Summary

9,950,000

$2,292 per Sq. Ft.

MLS #:

A12104430

Last Updated:

October 24, 2026, 12:54 AM


Rooms & Interior

Bedrooms

Total Bedrooms:

6

Bathrooms

Total Bathrooms:

6

Full Bathrooms:

5

Interior

Living Area:

4,341 Sq. Ft.


Structure

Structure

Architectural Style:

Contemporary/Modern, Detached, Two Story

Building Area:

5,156 Sq. Ft.

Year Built:

2025


Lot

Lot Size (Sq. Ft):

9,300


Finances & Disclosures

Finances

Price:

$9,950,000

Price per Sq. Ft:

$2,292 per Sq. Ft.

360 Harbor Ln
Source:SEFMLS
Information deemed reliable but not guaranteed. Information is provided, in part, by Greater Miami MLS. This information being provided is for consumer's personal, non-commercial use and may not be used for any other purpose other than to identify prospective properties consumers may be interested in purchasing.

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.