445 Grand Bay Drive Unit PH1A, Key Biscayne, FL 33149

$18,900,000
5
BD
6
BA
8,435
SqFt

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List Price
$18,900,000
Days on Market
164
MLS#
A11954185
Bedrooms
5
Full Bathrooms
5
Half Bathrooms
1
Sq. Ft
8,435
Subtype
Condominium
County
Miami-Dade
Subdivision
Grand Bay Residences Cond
Year Built
1997

Property Description

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.

Additional Information

Hoa
Yes
Hoa Amount
9923
Pets Allowed
Pet Restrictions, Yes
Construction
Block
Cooling
Electric
Flooring
Carpet, Marble, Wood
Furnished
Unfurnished
Heating
Electric
Restrict
NoRv, NoTruck, NoTrailerParking
Security
Elevator Secured, Fire Alarm, Secured Garage/Parking, Smoke Detector(s), Security Guard
Taxes
$54,141
Utilities
Cable Available
View
Bay, Ocean
Amenities
Bike Storage, Clubhouse, Fitness Center, Management, Pool
Waterfront
Beach Access, Deeded Access, Ocean Access, Ocean Front
Stories
1
Price Per Sqft
$2,240
Elementary School
Key Biscayne K-8
Middle School
Ponce De Leon
High School
Coral Gables

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Listing courtesy of One Sotheby's International Realty. Contact:

All listings featuring the BMLS logo are provided by Beaches MLS Inc. Copyright 2026 Beaches MLS. This information is not verified for authenticity or accuracy and is not guaranteed. © 2026 Beaches Multiple Listing Service, Inc. All rights reserved.


Agent: Brigitte Nachtigall | Email: Brigitte@bnachtigall.com