Virtual TourMap

For SaleSingle Family ResidenceActive

360 Harbor Ln

Key Biscayne, FL 33149

$9,950,000

25 Days On Site

  • 6Beds
  • 6Baths5 full, 1 half
  • 4,341Sq Ft
  • $2,292Per Sq Ft
  • 0.2135Acres
  • 2025Built
Subdivision
Biscayne Key Estates
County
Miami-Dade
MLS®
A12104430

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.

Listing Snapshot

Price
$9,950,000
Days On Site
25 Days
Bedrooms
6
Inside Area (SqFt)
4,341 sqft
Total Baths
6
Full Baths
5
Partial Baths
1
Lot Size
0.2135 Acres
Year Built
2025
MLS® Number
A12104430
Status
Active
Property Tax
$31,314 (2025)
HOA/Condo/Coop Fees
N/A
Sq Ft Source
N/A

Property Details

General Features

11 items
Carport
2
Direction Faces
Northeast
Levels
Two
Parking
Attached Carport, Driveway, Paver Block
Pets
No, Yes
Property Sub Type
Single Family Residence
Sewer
Public Sewer
SqFt Total
5,156
Style
ContemporaryModern, Detached, TwoStory
Water Source
Public
Zoning
0100

Interior Features

7 items
Appliances
Dryer, Dishwasher, Electric Range, Disposal, Microwave, Other, Refrigerator, Wine Cooler, Water Purifier, Washer, Oven
Cooling
Central Air, Electric
Flooring
Hardwood, Marble, Wood
Furnished
Unfurnished
Heating
Central, Electric
Interior
Built-in Features, Entrance Foyer, High Ceilings, Walk-In Closet(s), Master Downstairs
Window Features
Blinds

Exterior Features

9 items
Construction Details
Block, Other
Exterior
Balcony, Lighting, Outdoor Grill
Patio And Porch
Deck
Pool Features
Heated, In Ground, Private
Private Pool
Yes
Roof
Flat, Tile
View
Garden, Pool
Waterview
Garden, Pool
Windows/Doors
Blinds

Community Features

2 items
MLS Area
52
Financing Terms Available
Cash, Conventional

Location

360 Harbor Ln, Key Biscayne, FL 33149 · 52

Neighborhood & Commute

ZIP Code 33149

Median household income
$152,895
Income per person
$72,459
Households
5,812
Average household size
2.75
Median age
41.6

Source: Walk Score.

Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.

Schools

Elementary School
Keybiscayne
Middle School
Ponce De Leon
High School
Coral Gables

Price & Status History

  1. Listing updated with changes from the MLS®
  2. Status changed to Active
  3. Listing first seen on site
  4. Price changed to $9,950,000

Friends & Family

Similar Homes

For sale in Key Biscayne, single family residence, within 20% of this price.

Listing courtesy of Coldwell Banker Realty (305) 613-5550

Stellar MLS

Listing information is provided by Participants of the Stellar MLS. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Properties displayed may be listed or sold by various participants in the MLS Copyright 2026, Stellar MLS.

Last checked: 2026-11-14 12:45 AM EST

Powered by Showcase IDX, a Constellation1 company

We use cookies to improve your experience and our marketing. Privacy Policy