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360 Harbor Ln, Key Biscayne FL 33149

House For Sale
$9,950,000

BTC: 119.87951807

ETH: 4,091.28289474

New
6 bds
5 ba
4,341 sqft

Overview

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.

Location

Details

Type:
Residential
Parking:
Attached Carport / Driveway / Paver Block
Year Built:
2025
Lot:
9300 Square Feet
Heating:
Central / Electric
Price/sqft:
$2,292
Cooling:
Central Air / Electric
HOA:
No Data

Valuation

Recent sales nearby
26 public-records sales within 0.5 mi
Median actual sale: $3.6M
Not enough MLS comparables for a model estimate on this property. Public-records data shown instead.

Highlights

Annual tax
$31,314
2025
Pool
In Ground
View
Garden, Pool
All facts and features
  • Flooring

    • Marble

    • Wood

    Heating

    • Central

    • Electric

    Cooling

    • Central Air

    • Electric

    Appliances

    • Dishwasher

    • Disposal

    • Dryer

    • Electric Range

    • Microwave

    • Other Equipment/Appliances

    • Water Purifier

    • Refrigerator

    • Wall Oven

    • Washer

    Other interior features

    • First Floor Entry

    • Built-in Features

    • Closet Cabinetry

    • Entrance Foyer

    • Other

    • Volume Ceilings

    • Walk-In Closet(s)

    • Den/Library/Office

    • Family Room

    • Maid/In-Law Quarters

    • Utility Room/Laundry

    Bedrooms and bathrooms

    • Bedrooms: 6

    • Bathrooms: 1

    • Full bathrooms: 5

  • Parking

    • Attached Carport

    • Driveway

    • Paver Block

    Property

    • Exterior Features: Built-In Grill / Lighting / Open Balcony

    Lot

    • Lot: 9300 Square Feet

    Other Property Information

    • Parcel Number: 24-52-05-001-1490

    • Zoning: 0100

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Single Family Residence

  • Other financial information

    • Annual tax amount: $31,314

  • Source details

    • MLS ID: A12104430

    Other facts

    • Construction Materials: Concrete Block Construction / Other

    • Laundry Features: Utility Room/Laundry

    • Lot Features: Less Than 1/4 Acre Lot

    • Patio And Porch Features: Deck / Open Balcony

    • Pool Features: In Ground / Heated

    • Window Features: Clear Impact Glass / Complete Impact Glass / Blinds / High Impact Windows / Impact Glass

    • Direction Faces: Northeast

    • Architectural Style: Detached / Two Story / Modern/Contemporary

    • Living Area: 4341

    • Water Source: Municipal Water

    • Subdivision Name: BISCAYNE KEY ESTATES

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The multiple listing information is provided by the Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: Coldwell Banker Realty