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360 Harbor Ln, Key Biscayne FL 33149

Key Biscayne, FL 33149

$9,950,000

  • 360 Harbor Ln, Key Biscayne FL 33149, photo 1 of 16: Modern exterior featuring floor-to-ceiling glass walls, stacked stone facade, expansive second-level glass balcony railings, and a rectangular swimming pool set within a manicured landscape
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 2 of 16: Contemporary residence featuring floor-to-ceiling glass windows, stone cladding, a standing-seam metal roof, integrated glass terrace railings, and stone staircases
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 3 of 16: Living area featuring expansive floor-to-ceiling black-framed glass walls, recessed ceiling lighting, and built-in shelving
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 4 of 16: Floor-to-ceiling sliding glass walls, light-toned chevron-patterned wood-finish flooring, sculptural multi-tier chandelier, and recessed ceiling lighting
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 5 of 16: Open-concept kitchen featuring dark floor-to-ceiling cabinetry, a central island with a waterfall countertop, recessed ceiling lighting, multi-pendant illumination, and expansive floor-to-ceiling sliding glass walls
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 6 of 16: Gourmet kitchen featuring floor-to-ceiling dark wood cabinetry, a large central island with a fluted stone base, herringbone wood-finish flooring, built-in double ovens, and contemporary pendant lighting
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 7 of 16: Covered outdoor patio with wood-slatted ceiling, composite decking, recessed lighting, glass railing, and in-ground pool
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 8 of 16: Floor-to-ceiling black-framed windows, herringbone-pattern wood-finish flooring, recessed lighting, and integrated drapery tracks
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 9 of 16: Bathroom featuring dual-sink vanity with stone countertop, walk-in shower with stone surround, brass-finish fixtures, and integrated sauna
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 10 of 16: Floor-to-ceiling windows with black frames, wood-finish flooring, and recessed ceiling lighting
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 11 of 16: Dual-sink vanity with a solid-surface countertop, rectangular under-mount basins, polished metal gooseneck faucets, and a full-width wall mirror
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 12 of 16: Floor-to-ceiling windows with black frames, wood-finish flooring, and a wall-mounted floating desk
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 13 of 16: Covered patio with horizontal wood-slat ceiling, recessed lighting, composite decking, and glass panel railing overlooking a landscaped yard
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 14 of 16: Outdoor terrace featuring wood-finish decking, glass panel railing, and a built-in outdoor kitchen with a stainless steel grill and stone-style cabinetry
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 15 of 16: Modern architectural residence featuring floor-to-ceiling windows, stone exterior cladding, a second-story glass-railed balcony, an in-ground swimming pool, and manicured landscaping
  • 360 Harbor Ln, Key Biscayne FL 33149, photo 16 of 16: Aerial perspective of a multi-story residence featuring a dark metal roof, expansive glass windows, and mature tropical landscaping within a coastal environment

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Price
$9,950,000
Beds
6
Baths
5.5
Square feet
4,341
Property type
Single Family Residence
Year built
2025
Lot size (sq ft)
9,300
MLS number
A12104430

This listing is courtesy of Coldwell Banker Realty, 786-472-4024.

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About this property

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

Property type
Single Family Residence
Year built
2025
Lot size (sq ft)
9,300

Location

Listing information is deemed reliable but is not guaranteed accurate by MIAMI REALTORS®.

Newmar Brokerage, LLC

360 Harbor Ln, Key Biscayne FL 33149 | Newmar Brokerage, LLC