
425 Harbor Dr, Key Biscayne, FL 33149
Key Biscayne, FL 33149 · TROPICAL ISLE HOMES SUB 3
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 home | Key Biscayne median (12 mo) | |
|---|---|---|
| Price per sq. ft. | $1,632 | $976 |
| Days on market | 97 | 61 |
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
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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.