Property Details
| Asking Price | $18,900,000 |
|---|---|
| Price per SqFt | $2,241 |
| Maintenance Fee | $9,923 Monthly |
| Property Taxes | $54,141 2025 |
| Interior Space | 8,435 SqFt |
| Beds/Baths | 5/5½ |
| Year Built | 1997 |
| MLS # | A11954185 |
Location
From the listing
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.
Listed by One Sotheby's International Realty
What It Costs to Own
Monthly, before a mortgage and insurance
Maintenance $9,923 a month; taxes $54,141 for 2025. MLS figures, which may not be accurate.
Sales History for This Unit · Grand Bay Residences PH 1A
| Sale ⇅ | Sold Price ⇅ | Closed Date ⇅ |
|---|---|---|
| A11107677 | $11,375,000 | 3/9/22 |
What Other Units Have Been Selling For at Grand Bay Residences
2 units sold at Grand Bay Residences in the last 12 months at an average of $969/SqFt · This unit (PH-1A) is asking $2,241/SqFt
Below, the most recent sales most like this unit: units with the same bedroom count.
| Unit ⇅ | Sold Price ⇅ | % of Ask ⇅ | Closed Date ⇅ |
|---|---|---|---|
| PH-1A | $11,375,000$1,349/SqFt | 82% | 3/9/22 |
| 1201 | $5,000,000$887/SqFt | 85% | 3/27/19 |
| — | $5,750,000$1,195/SqFt | 96% | 4/3/13 |
For a full analysis of past sales in this development, contact Mark Zilbert.
Listed by One Sotheby's International Realty. Mark Zilbert of ONE Sotheby's International Realty is a cooperating (transaction) broker and helps buyers find properties in Key Biscayne and throughout South Florida.
Ask Mark About This Listing
Grand Bay Residences PH 1A, 445 Grand Bay Drive · MLS A11954185 · $18,900,000
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The curated data and calculated data for this property and its surrounding condo units and homes is based solely on data we have extracted from the MLS. There may be unpublished, private, quit claim and other property offerings and transfers that do not appear here, which may affect how a buyer or seller perceives property values. Always conduct proper due diligence when considering buying or selling property.
More at Grand Bay Residences
At Grand Bay Residences, 3 of 137 units are for sale and 2 sold in the last 12 months at an average of $969 per SqFt. PH 1A asks $2,241 per SqFt, above the building's recent sold average. Figures compiled by Mark Zilbert, a Key Biscayne real estate agent with ONE Sotheby's International Realty, from MLS records.