
Grand Bay Residences
445 Grand Bay Drive, Key Biscayne, FL 33149
ALERTS FOR GRAND BAY RESIDENCES
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Mark Zilbert is a Key Biscayne real estate agent who follows every listing and sale at Grand Bay Residences. Buyers and sellers can call or text Mark at (786) 280-0201.
Building Facts
| Developer | GB/JT Hotel Partners |
|---|---|
| Architect | Cohen Freedman Encinosa |
| Year Built | 1996 |
| Units | 137 |
| Unit sizes | 1,720 – 10,090 SqFt |
About Grand Bay Residences
Grand Bay Residences is a 13-story beachfront condo of 137 residences at 445 Grand Bay Drive on the Key Biscayne ocean. It was the first of the three Grand Bay buildings, and its plans are among the largest on the island, from 1,720 SqFt to a 10,090 SqFt penthouse. Three-bedroom condos account for 87 of them, with 39 two-bedroom and 11 four- and five-bedroom residences. GB/JT Hotel Partners developed it, with architecture by Cohen Freedman Encinosa, beside the grounds of the Ritz-Carlton.
By Mark Zilbert, Global Real Estate Advisor · updated October 2026
Asking prices by bedrooms: 4 beds from $4M · Penthouses from $18.9M

For Sale
2 units · avg asking $1,955/SqFt
| Unit ⇅ | Price ⇅ | Listed ⇅ |
|---|---|---|
| 1044 bed · 3,250 SqFt | $3,950,000$1,215/SqFt | 9/21/269/21 |
| PH 1A5 bed · 8,435 SqFt | $18,900,000$2,241/SqFt | 2/14/262/14 |
Pending Sales
Under contract, awaiting closing. The freshest signal of where prices are settling. In the MLS: For sale is Active or Active with Contract; these are Pending. The price shown is the asking price. The closed price appears in Sold when it records.
| Unit ⇅ | Price ⇅ | Pending ⇅ |
|---|---|---|
| 4182 bed · 1,760 SqFt | $2,520,000$1,432/SqFt | 9/25/269/25 |
1 residence under contract
Sold · Last 12 Months
2 closed sales · avg $969/SqFt · avg 89% of last asking price
| Unit ⇅ | Sold Price ⇅ | % of Ask ⇅ | Closed ⇅ |
|---|---|---|---|
| 8022 bed · 2,950 SqFt | $2,730,000list $3,149,000 | 87% | 2/6/262/6 |
| 3034 bed · 3,480 SqFt | $3,500,000list $3,850,000 | 91% | 2/6/262/6 |
% of ask compares the closed price to the final list price. The building's full sold history, 68 sales, lives on the archive view.
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Location
445 Grand Bay Drive · Key Biscayne
Ask Mark About This Condo
Grand Bay Residences, 445 Grand Bay Drive, Key Biscayne
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