MIAMI LUXHomes

425 Harbor Dr, Key Biscayne, FL 33149

$7,450,0007 Beds9 Baths4,565 Sq. Ft.$1,632 / sq. ft.

Key Biscayne, FL 33149 · TROPICAL ISLE HOMES SUB 3

Status
Active
Type
Single Family Residence
Year Built
2020
Days on Market
97
Lot Size
9,258 sqft
MLS #
A12034564
County
Miami-Dade County

About 425 Harbor Dr, Key Biscayne, FL 33149

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.

How This Listing Compares in Key Biscayne

Per square foot, it is asking 67% above the Key Biscayne median for sales closed over the last twelve months — typical of premium views, newer construction or a top-tier building.

This homeKey Biscayne median (12 mo)
Price per sq. ft.$1,632$976
Days on market9761

Medians from closed MLS sales in Key Biscayne; a starting point, not an appraisal.

Home Features at 425 Harbor Dr, Key Biscayne, FL 33149

Bathrooms Full
7
Bathrooms Half
2
Interior Features
First Floor Entry, Built-in Features, Closet Cabinetry, Cooking Island, Elevator, Volume Ceilings, Walk-In Closet(s), Other, Storage, Utility/Laundry In Garage
Appliances
Dishwasher, Disposal, Dryer, Electric Range, Microwave, Refrigerator, Wall Oven, Washer
Flooring
Wood
Heating
Central, Electric
Cooling
Central Air
Furnished
Unfurnished
Architectural Style
Attached, Three Or More Stories
Garage Spaces
1
Parking Features
Attached Carport, Covered, Driveway, Electric Vehicle Charging Station(s), Other
Pool Features
In Ground, Heated
Pool Private
No
Year Built Details
Effective Year Built
Direction Faces
West

The Building at 425 Harbor Dr, Key Biscayne, FL 33149

Building Name
TROPICAL ISLE HOMES SUB 3
Building Area Total
6092
Building Area Units
Square Feet
Association
No
Security Features
Smoke Detector

Lot, Views & Construction at 425 Harbor Dr, Key Biscayne, FL 33149

Lot Features
Less Than 1/4 Acre Lot
Lot Size Square Feet
9,258
Waterfront
No
View
Other
Construction Materials
CBS Construction, Elevated Construction
Roof
Flat Roof With Facade Front
Exterior Features
Built-In Grill, Open Balcony, Outdoor Shower
Sewer
Public Sewer
Water Source
Municipal Water
New Construction
No

Taxes & Public Record for 425 Harbor Dr, Key Biscayne, FL 33149

Parcel Number
24-42-32-005-0220
Tax Annual Amount
$89,673
Tax Year
2,025
Tax Legal Description
32 54 42 & 5-6 55 42 PB 50-83 TROPICAL ISLE HOMES SUB 3RD ADDN LOT 16 BLK 13 LOT SIZE 9258.00 SQ FT COC 22279-1992 05 2004 1
Zoning
0100
County Or Parish
Miami-Dade County

Assigned Schools for 425 Harbor Dr, Key Biscayne, FL 33149

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

School assignments are provided by the listing and should be independently verified.

Map & Neighborhood

425 Harbor Dr, Key Biscayne, FL 33149 · More homes in Key Biscayne

Courtesy of One Sotheby's International Realty

Comparable Listings in Key Biscayne

425 Harbor Dr, Key Biscayne, FL 33149 at a Glance

Offered for sale in Key Biscayne 33149, 425 Harbor Dr is a single family home with 7 bedrooms, 9 bathrooms, about 4,565 square feet of living space, dating to 2020. The asking price is $7,450,000, on the market since June 12, 2026, with One Sotheby's International Realty as the listing brokerage. Students here are assigned to Keybiscayne, Ponce De Leon and Coral Gables. Ask Matthew Gromadzki for a private showing, the full disclosure package, or comparable sales before you make an offer.