
445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
Key Biscayne, FL 33149 · Grand Bay Residences
Listing Remarks — 445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
High above the turquoise waters of Key Biscayne rises a penthouse that simply cannot be replicated. Once featured in Architectural Digest, this legendary corner residence at Grand Bay is a statement of scale, design, and presence. From sunrise over the Atlantic to glittering sunsets across Biscayne Bay and the Miami skyline, the views are cinematic in every direction, offering endless blue water, golden light, and exceptional privacy. Spanning an extraordinary 8,435 square feet under air and 2,825 square feet of terraces, totaling 11,260 square feet as per the developer’s floor plan, the residence is defined by soaring 12-foot ceilings and grand proportions throughout. A dramatic foyer leads to a spectacular Grand Room designed for both intimate living and large-scale entertaining. The formal dining room is separate and elegant, while the completely remodeled kitchen and family room provide comfort and functionality. The fully renovated private library and custom bar enhance the home’s entertaining appeal. The primary suite is serene and expansive. All the bathrooms have just been completely remodeled, offering a fresh spa-inspired experience finished to today’s highest standards. Four (4) additional en-suite bedrooms ensure comfort and privacy. The terraces offer expansive outdoor living in the sky, perfect for sunrise mornings and sunset evenings overlooking the water and skyline. This is not simply a penthouse. It is a landmark residence, rare and impossible to duplicate.
Inside the Residence: 445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
- Bathrooms Full
- 5
- Bathrooms Half
- 1
- Interior Features
- Built-in Features, Closet Cabinetry, Entrance Foyer, Pantry, Volume Ceilings, Walk-In Closet(s), Wet Bar, Den/Library/Office, Family Room, Great Room
- Appliances
- Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Microwave, Electric Range, Refrigerator, Wall Oven, Washer
- Flooring
- Carpet, Marble, Wood
- Heating
- Electric
- Cooling
- Electric
- Furnished
- Unfurnished
- Architectural Style
- Corner Unit, High Rise, Penthouse
- Garage Spaces
- 0
- Parking Features
- 2 Or More Spaces, Covered, Valet, No Rv/Boats, No Trucks/Trailers
- Pool Private
- No
- Year Built Details
- Resale
- Direction Faces
- East
Building & Association Facts — 445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
- Building Name
- GRAND BAY
- Building Area Total
- 11260
- Building Area Units
- Square Feet
- Stories Total
- 14
- Entry Level
- 14
- Association
- Yes
- Association Fee
- 0
- Association Fee Frequency
- Monthly
- Association Amenities
- Bike Storage, Community Room, Exercise Room, Pool
- Pets Allowed
- Restrictions Or Possible Restrictions
- Security Features
- Fire Alarm, Smoke Detector, Elevator Secure, Secured Garage/Parking, Guard At Site
Site, Views & Construction — 445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
- Lot Size Square Feet
- 0
- Waterfront
- Yes
- Waterfront Features
- Ocean Access, Ocean Front
- View
- Bay, Ocean View, Direct Ocean
- Construction Materials
- CBS Construction
- Exterior Features
- Open Balcony
- New Construction
- No
Tax & Parcel Record — 445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
- Parcel Number
- 24-52-05-049-1350
- Tax Annual Amount
- $54,141
- Tax Year
- 2,025
- Tax Legal Description
- GRAND BAY RESIDENCES CONDO UNIT PH-1A UNDIV 1.7892% INT IN COMMON ELEMENTS OFF REC 17374-0773 OR 17905-3465 1297 1
- County Or Parish
- Miami-Dade County
Assigned Schools — 445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
- Elementary School
- Keybiscayne
As reported by the listing agent; confirm with the school district before relying on it.
On the Map
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Quick Facts: 445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149
Listing summary: condo for sale at 445 Grand Bay Drive # PH-1A, Key Biscayne, FL 33149. It came to market on February 14, 2026 through One Sotheby's International Realty. Public schools here fall under Miami-Dade County Public Schools. The listing names Keybiscayne as assigned schools. Layout: 5-bed, 6-bath, 8,435 sqft, in a structure dating to 1997.
