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360 Harbor Ln, Key Biscayne, Florida 33149

Active For Sale
$9,950,000
  • Beds 6
  • Baths 6
  • Sq Ft 4,341 Sqft
  • Visits: 1 in 4 days

Description

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.

Features

  • Swimming Pool: Pool, Heated, In Ground
  • Heating System: Central, Electric
  • Cooling System: Electric, Central Air
  • Patio: Balcony, Deck, Open
  • Parking: Driveway, Paver Block, Attached Carport

Appliances

  • Appliances: Dryer, Dishwasher, Electric Range, Microwave, Refrigerator, Washer, Disposal, Built-In Oven, Other, Water Purifier, Wine Cooler

Address Map

  • Country: US
  • State: FL
  • County: Miami-Dade
  • City: Key Biscayne
  • Subdivision: BISCAYNE KEY ESTATES
  • Zipcode: 33149
  • Street: Harbor Ln
  • Street Number: 360
  • Floor Number: 0
  • Longitude: W81° 49' 40.7''
  • Latitude: N25° 41' 18.7''
  • MLS Area: 52

MLS Addon

  • Architectural Style: Detached, Two Story, Contemporary/modern
  • Association Fee: $0
  • Association Fee Frequency: Monthly
  • Carport Spaces: 01/01/1970
  • Close Date:
  • Close Price: $0
  • Elementary School: Keybiscayne
  • Exterior Features: Balcony, Deck, Lighting, Security/High Impact Doors, Outdoor Grill
  • Fireplaces Total: 0
  • Flooring: Wood, Marble, Hardwood
  • Garage Spaces: 0
  • High School: Coral Gables
  • Insurance Expense: $0
  • Interior Features: Bedroom on Main Level, Dual Sinks, First Floor Entry, Living/Dining Room, Sitting Area in Primary, Upper Level Primary, Closet Cabinetry, Entrance Foyer, Walk-In Closet(s), Built-in Features, High Ceilings, Dining Area, Separate/Formal Dining Room, Kitchen/Dining Combo, Shower Only
  • Levels: Two
  • Lot Features: < 1/4 Acre, Sprinklers Automatic, Sprinkler System, Flood Zone
  • Middle Or Junior School: Ponce De Leon
  • New Taxes Expense: $0
  • Stories: 2
  • Stories Total: 0
  • Tax Annual Amount: $31,314
  • Window Features: Blinds, Impact Glass

Location

Listing Updated: 2026-10-23 01:11:28

  • Property Type : Single Family
  • Property Sub Type : Single Family Residence
  • Listing Type : For Sale
  • Listing ID : A12104430
  • Price : $9,950,000
  • View : Garden, Pool
  • Bedrooms : 6
  • Bathrooms : 6
  • Full Bathrooms : 5
  • Half Bathrooms : 1
  • Square Footage : 4,341 Sqft
  • Year Built : 2025
  • Lot Area : 0 Acre
  • Listing Status : Active
  • Days On Market : 1
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