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Active - Condominium for sale
445 Grand Bay Drive # 1A, Key Biscayne FL 33149
Facts & features
Why you’ll love it
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.
Listings courtesy of One Sotheby's International Realty.
Listed by: Brigitte Nachtigall • 305-710-9664 • One Sotheby's International Realty
Co-listed by: Jorge Boj • 305-710-9664 • One Sotheby's International Realty
Source: Miami MLS, MLS#: A11954185
Based on info available as of Nov 13, 2026 at 7:00 PM EST.
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Affordability
$100,080/mo
- Mortgage$95,569
- Property tax$4,512
- HOA fee
- Homeowners insurance
Beycome estimates only. Actual amounts and terms vary by lender and location.
$378,000 Credit back
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About Grand Bay Residences Cond,Grand Bay
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Disclaimer
No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements.
Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions.
Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided.
Copyright ©2026.
Based on information as of Nov 13, 2026 at 07:00pm EST.
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$378,000 Credit back
