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360 Harbor Ln, Key Biscayne FL 33149

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360 Harbor Ln360 Harbor Ln360 Harbor Ln360 Harbor Ln
Active · For Sale
$9,950,000
360 Harbor Ln, Key Biscayne FL 33149
Data via Miami Association of REALTORS® (MiamiRE)
6
Beds
5.5
Baths
5 full + 1 half
4,341
Sq Ft
$2,292
Per Sq Ft
9,300
Lot Sq Ft

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.

MLS #:A12104430
Status:Active
Property Type:Residential · Single Family Residence
Year Built:2025
Living Area:4,341 sq ft
Lot Size:9,300 sq ft
Bathrooms:5.5 (5 full + 1 half; half baths count as ½)
HOA:None
Annual Taxes:$31,314 (2025)
Days on Market (per MLS):4
Waterfront:No
View:Garden, Pool
Parking:Attached Carport, Driveway, Paver Block
Furnished:Unfurnished
Cooling:Central Air, Electric
Construction:Concrete Block Construction, Other
Zoning:0100
Subdivision (per MLS):BISCAYNE KEY ESTATES
City:Key Biscayne
ZIP:33149
County:Miami-Dade
MLS record last modified:October 23, 2026
Map showing the location of 360 Harbor Ln, Key Biscayne FL 33149
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