$9,950,000
360 Harbor Ln
Key Biscayne, FL, 33149
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.
Property Details
Price:
$9,950,000
MLS #:
A12104430
Status:
Active
Beds:
6
Baths:
5.5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
BISCAYNE KEY ESTATES
Neighborhood:
biscaynekeyestates
Listed Date:
Oct 19, 2026
Finished Sq Ft:
4,341
Total Sq Ft:
5,156
Year Built:
2025
Schools
Elementary School:
Keybiscayne
Middle School:
Ponce De Leon
High School:
Coral Gables
Interior
Appliances
Dishwasher, Disposal, Dryer, Electric Range, Microwave, Other Equipment/Appliances, Water Purifier, Refrigerator, Wall Oven, Washer
Bathrooms
5 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air, Electric
Flooring
Marble, Wood
Heating
Central, Electric
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
Laundry Features
Utility Room/Laundry
Exterior
Architectural Style
Detached, Two Story, Modern/Contemporary
Community Features
None
Construction Materials
Concrete Block Construction, Other
Covered Spaces
2
Direction Faces
Northeast
Exterior Features
Built-In Grill, Lighting, Open Balcony
Lot Features
Less Than 1/4 Acre Lot
Open Parking YN
1
Parking Features
Attached Carport, Driveway, Paver Block
Patio And Porch Features
Deck, Open Balcony
Roof
Flat Tile
View
Garden, Pool
Window Features
Clear Impact Glass, Complete Impact Glass, Blinds, High Impact Windows, Impact Glass
Financial
Tax Year
2025
Taxes
$31,314
Mortgage Calculator
Map
Current real estate data for Single Family in Key Biscayne as of Oct 20, 2026
45
Single Family Listed
155
Avg DOM
2,537
Avg $ / SqFt
$13,537,222
Avg List Price
Community
- Address360 Harbor Ln Key Biscayne FL
- SubdivisionBISCAYNE KEY ESTATES
- CityKey Biscayne
- CountyMiami-Dade County
- Zip Code33149
Subdivisions in Key Biscayne
- 155 SUNRISE CONDO
- 32 54 42 & 5 55 42,TORPICAL HOMES
- 325 FERNWOOD ROAD CONDO
- 544-548 FERNWOOD CONDO
- BAHAMA HOUSE CONDO,Bahama House
- BAHAMA HOUSE SOUTH CONDO,KEY CASSA
- BISCAYNE KEY ESTATES
- BLUE PELICAN CONDO
- CAPE FLA SUB SEC 2
- CAPE FLORIDA CLIB CONDO P
- CAPE FLORIDA CLUB CONDO
- CAPE FLORIDA CLUB CONDO P
- CAPE FLORIDA CLUB CONDO P,Cape Florida Club
- CAPE FLORIDA SUB SEC 1
- CAPE FLORIDA SUB SEC 3
- CAPE FLORIDA SUB SEC 3,Village Estate
- CASA DEL MAR
- CASA DEL MAR CONDO
- CAY POLYNESIA CONDO
- CLUB TOWER ONE CONDO
- CLUB TOWER ONE CONDO,Ocean Club
- CLUB TOWER THREE CONDO
- CLUB TOWER TWO CONDO
- CLUB TOWER TWO CONDO,Ocean Club
- COMMODORE CLUB SOUTH COND
- COMMODORE CLUB SOUTH COND,COMMODORE CLUB SOUTH
- COMMODORE CLUB SOUTH CONDO
- COMMODORE CLUB WEST CONDO
- COMMODORE CLUB WEST CONDO,COMMODORE CLUB
- COMMODORE CLUB WEST CONDO,COMMODORE CLUB WEST
- Crandon Tower Condo
- EMERALDBAY, KEY COLONY 3
- Fernwood Homes Condo
- G B RESORT CONDO HOTEL
- G B VILLAS
- GALEN 250 CONDO
- GALEN BREAKERS CONDO
- GALEN DRIVE CONDO APTS
- GALEN DRIVE WEST CONDOMIN
- GDNS OF KEY BISC-ALHAMBRA
- GOVERNORS LODGE ASSOC CON
- GRAND BAY RESIDENCES COND
- GRAND BAY RESIDENCES COND,GRAND BAY
- GRAND BAY TOWER CONDO
- GRAND BAY TOWER CONDO,GRAND BAY TOWER COND
- GRAPETREE TOWNHOUSE CONDO
- HOLIDAY COLONY
- HURRICANE COVE
- INDIES CONDO
- ISLAND BREAKERS CONDO
- ISLAND BREAKERS CONDO,ISLAND BREAKERS COND
- ISLAND HOUSE
- ISLAND HOUSE APT INC – CO
- ISLAND HOUSE APT INC – CO,Island House Apt Inc
- KEY BISC AMBASSADOR CONDO
- KEY BISC AMBASSADOR CONDO,KEY BISC AMBASSADOR
- KEY BISCAYNE COMMODORE CL
- KEY BISCAYNE COMMODORE CL,COMMODORE CLUB ONE
- KEY BISCAYNE COMMODORE CL,Commodore East
- KEY BISCAYNE COMMODORE CL,KEY BISCAYNE COMMODO
- KEY BISCAYNE ONE HUNDRED
- KEY BISCAYNE VI CONDO
- KEY BISCAYNES COMMODORE C
- KEY COLONY NO 1
- KEY COLONY NO 1,KEY COLONOY 1
- KEY COLONY NO 1,KEY COLONY
- KEY COLONY NO 2 CONDO
- KEY COLONY NO 2 CONDO,KEY COLONY NO 2 COND
- KEY COLONY NO 4 CONDO
- KEY COLONY NO 4 CONDO,KEY COLONY NO 4 COND
- KEY COLONY TIDEMARK
- KEY COLONY,THE EMERALD BAY
- KEY ISLANDER CONDO
- KEY ISLANDER CONDO,Key Islander Condo
- Key Islander Condominium,Key Islander Condomi
- KEY TOWNHOUSE CONDO
- LAKE TOWER CONDO
- LAKE TOWER CONDO,Lake Tower
- LAKE VILLA ONE CONDO
- LAKE VILLA ONE CONDO,The Ocean Club
- LAKE VILLA THREE CONDO
- Lake Villa Three Condo,Lake Villa Three Con
- LAKE VILLA TWO CONDO
- LAKE VILLA TWO CONDO,The Ocean Club
- Le Phare Condo,Le phare
- LE PHARE KEY BISCAYNE CON
- Mar Azul,Mar Azul Condo
- MAR-AZUL CONDO
- MAR-AZUL CONDO,Mar Azul
- MAR-AZUL CONDO,Mar Azul Condo
- MASHTA ISLAND
- MASHTA ISLAND A REPLAT OF
- MASHTA POINT SUB
- MATHESON ESTATES
- MATHESON ESTATES,MATHESON STATES
- OCEAN DRIVE MANORS INC CO
- OCEAN DRIVE MANORS INC CO,OCEAN DRIVE MANORS I
- OCEAN LANE PLAZA CONDO
- OCEAN TOWER ONE CONDO
- OCEAN TOWER TWO
- OCEAN TOWER TWO CONDO
- OCEAN TOWER TWO CONDO,Ocean Club
- OCEAN TOWER TWO CONDO,THE OCEAN CLUB
- OCEAN VILLAGE CONDO
- OCEAN VILLAGE CONDO,OCEAN VILLAGE
- OCEANA KEY BISCAYNE CONDO
- OCEANA KEY BISCAYNE CONDO,OCEANA KEY BISCAYNE
- RESORT VILLA ONE CONDO
- RESORT VILLA ONE CONDO,RESORT VILLA ONE CON
- RESORT VILLA TWO CONDO
- RESORT VILLA TWO CONDO,Resort Villa
- RESORT VILLA TWO CONDO,The Ocean Club
- SANDS OF KEY BISCAYNE
- SANDS OF KEY BISCAYNE CON
- SANDS OF KEY BISCAYNE CON,The Sands
- SMUGGLERS COVE
- SOLIMAR CONDO OF KEY BISC
- SOLIMAR CONDO OF KEY BISC,SOLIMAR CONDO
- SUNRISE CLUB CONDO
- SUNRISE CLUB CONDO,100 SUNRISE
- SUNRISE MANOR CONDO
- THE EMERALD BAY
- THE EMERALDBAY @ KEY COLO
- THE EMERALDBAY @ KEY COLO,Emerald Bay
- THE EMERALDBAY @ KEY COLO,KEY COLONY
- THE EMERALDBAY @ KEY COLO,THE EMERALD BAY
- THE EMERALDBAY @ KEY COLO,THE EMERALDBAY @ KEY
- THE EMERALDBAY @ KEY COLON
- THE EMERALDBAY KEY COLONY
- The Ocean Club
- THE PALMS OF KEY BISCAYNE
- THE PYRAMIDS @ KEY BISCAY
- TOWERS OF KEY BISCAYNE CO
- TOWERS OF KEY BISCAYNE CO,The Towers of Key Bi
- TOWERS OF KEY BISCAYNE CO,TOWERS OF KEY BISCAY
- TOWERS OF KEY BISCAYNE CON
- TROPICAL ISLE HOMES 4TH. A,tROPICAL iSLE hOMES
- TROPICAL ISLE HOMES RESUB
- TROPICAL ISLE HOMES SUB
- TROPICAL ISLE HOMES SUB 1
- TROPICAL ISLE HOMES SUB 1,TROPICAL ISLE HOMES
- TROPICAL ISLE HOMES SUB 2N
- TROPICAL ISLE HOMES SUB 3
- TROPICAL ISLE HOMES SUB 3,TROPCIAL ISLES HOMES
- TROPICAL ISLE HOMES SUB 3,TROPICAL ISLE HOMES
- TROPICAL ISLE HOMES SUB 4
- TROPICAL ISLE HOMES SUB 4,KEY COLONY
- TROPICAL ISLE HOMES SUB,TROPICAL ISLE HOMES
- TROPICAL ISLES HOMES,TROPICAL ISLE HOMES
- VILLAHARBOUR APTS CONDO
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Property Summary
- Located in the BISCAYNE KEY ESTATES subdivision, 360 Harbor Ln Key Biscayne FL is a Single Family for sale in Key Biscayne, FL, 33149. It is listed for $9,950,000 and features 6 beds, 6 baths, and has approximately 4,341 square feet of living space, and was originally constructed in 2025. The current price per square foot is $2,292. The average price per square foot for Single Family listings in Key Biscayne is $2,537. The average listing price for Single Family in Key Biscayne is $13,537,222.

360 Harbor Ln
Key Biscayne, FL

























