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445 Grand Bay Dr Unit PH1A
Active
+47

$18,900,000

|Est. $113,400/mo

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

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5beds
6baths
8,435sqft
1997year built
ActiveResidentialCondominiumHOA $9923/mo202 DOMMLS# A11954185

Listed by: Brigitte Nachtigall 305-710-9664, One Sotheby's International Realty 305-365-2811

Source:Beaches MLS (RAPB)|MLS #A11954185

What's special

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.

Bedrooms5
Bathrooms6
Year built1997
Home typeCondominium
Property subtypeResidential
Living area8,435 sqft
RegionKey Biscayne, FL
HOA fee$9923/mo
Price per square foot$2241/sqft
Date on market2026-02-14T00:00:00.000Z
MLS#A11954185

Preferred Brokerage Partner

Kinsfolk Realty

Kinsfolk Signature Realty

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Price history

DateEventPrice
2026-02-14T00:00:00.000ZListed for sale$18,900,000$2241/sqft

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