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445 Grand Bay Drive PH-1A, Key Biscayne, FL 33149

Offering:
For Sale
Location:
Key Biscayne, FL 33149
Subdivision:
GRAND BAY RESIDENCES COND
Status:
Active
Number of Bedrooms
5
Number of Bathrooms
6
Living Area sq ft
8,435 sq ft
$18,900,000

Deemed reliable but not guaranteed.

Details
Year built:
1997
Levels:
One
Stories:
1
Style:
High Rise,Penthouse
Faces:
East
Days on market:
180
Annual tax (2025):
$54,141
Type:
Condo
MLS ID
A11954185
Listed by:
One Sotheby's International Realty (OSIR04)
Listing office phone:
305-365-2811
Listing office email:
Listing agent:
Brigitte Nachtigall (0542022)

Features

Wet Bar
Bidet
Built In Features
Breakfast Area
Bathtub
Closet Cabinetry
Dining Area
Separate Formal Dining Room
Dual Sinks
Entrance Foyer
Eat In Kitchen
High Ceilings
Main Level Primary
Pantry
Separate Shower
Walk In Closets
Built In Oven
Dryer
Dishwasher
Electric Range
Electric Water Heater
Disposal
Ice Maker
Microwave
Refrigerator
Washer
Blinds
Drapes
Balcony
Open
Block
Ocean Access
Ocean Front
Den
Family Room
Great Room
Schools
Elementary:
Keybiscayne

School assignments come from the MLS feed and can change. Verify with the district before relying on them.

Association
Amenities:
Bike Storage, Clubhouse, Fitness Center, Pool
Fee includes:
Association Management, Common Areas, Cable Tv, Maintenance Grounds, Sewer, Security, Water
Additional fee:
$9,923 / Monthly
Pets
Allowed:
yes
Restrictions:
Conditional
Utilities
Available:
Cable Available

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.
Price history
$18,900,000 → $18,900,000 · 1 price changes

Location

445 Grand Bay Drive PH-1A
Key Biscayne, FL 33149

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MLS information

Last updated Aug 13, 2026

IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.