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Homes for sale in Key Biscayne
Single Family Residence

425 Harbor Dr

Key Biscayne, FL 33149
$7,450,000
Beds
7
Baths
7 + 2 half
Sq ft
4,565
Year built
2020
Price per sq ft
$1,632

Listing courtesy of Mark Chatburn, One Sotheby's International Realty

About this home

Discover this striking contemporary residence, perfectly positioned on an oversized 9,258 SF lot on Harbor Drive, one of Key Biscayne’s most elegant and prestigious streets.
Built in 2020, this architectural masterpiece offers 6 bedrooms plus a private office, 7 full baths, and 2 powder rooms across 4,565 SF of beautifully designed living space. Filled with natural light, the home showcases expansive open living areas, impressive volume throughout, and a sleek custom kitchen featuring bespoke cabinetry and top-of-the-line finishes.
An elevator provides seamless access to all three levels, culminating in a spectacular rooftop terrace with captivating island views and refreshing bay breezes…a unique advantage of being just moments from the water.
Designed for effortless indoor-outdoor living, the exterior features a resort-style saltwater pool and spa, summer kitchen, cabana bath, and generous entertaining areas surrounded by lush tropical landscaping.
Additional highlights include , EV charger, and ample driveway parking. Combining exceptional design, comfort, and functionality, this residence embodies the very best of island living in one of Key Biscayne’s most distinguished locations.
Just minutes from Miami, Key Biscayne is a hidden island paradise where pristine beaches, world-class outdoor recreation, and a relaxed yet sophisticated lifestyle come together in a way that few places can match.

Details

Property

Type
Single Family Residence
Style
Attached, Three Or More Stories
Building
Pool Only
Year built
2020
Lot size
9,258 sq ft
Building name
TROPICAL ISLE HOMES SUB 3
Subdivision
TROPICAL ISLE HOMES SUB 3
County
Miami-Dade County
Faces
West
Flood zone
AE

Interior

Appliances
Dishwasher, Disposal, Dryer, Electric Range, Microwave, Refrigerator, Wall Oven, Washer
Flooring
Wood
Cooling
Central Air
Heating
Central, Electric
Laundry
In Garage
Features
First Floor Entry, Built-in Features, Closet Cabinetry, Cooking Island, Elevator, Volume Ceilings, Walk-In Closet(s), Storage, Utility/Laundry In Garage
Furnished
Unfurnished

Exterior and parking

Exterior
Built-In Grill, Open Balcony, Outdoor Shower
Patio and porch
Deck, Open Balcony
Pool
In Ground, Heated
Parking
Attached Carport, Covered, Driveway, Electric Vehicle Charging Station(s)
Garage spaces
1
Construction
CBS Construction, Elevated Construction
Roof
Flat Roof With Facade Front

Community and fees

Security
Smoke Detector
Annual taxes
$89,673
Terms
All Cash, Conventional

Neighborhood

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The data relating to real estate for sale or lease on this website comes in part from the Internet Data Exchange (IDX) program of MIAMI REALTORS® MLS. Listings are provided by participating brokers.

Information is deemed reliable but is not guaranteed and should be independently verified. It is subject to change and is provided for consumers’ personal, non-commercial use only, to identify properties they may be interested in. Listing last updated September 17, 2026.