Grand Bay Residences
Grand Bay Residences is a 13-story luxury condominium at 445 Grand Bay Drive in Key Biscayne, completed in 1996. Developed by GB/JT Hotel Partners and designed by architects Cohen, Freeman, Encinosa & Associates, the residential-only tower sits within a gated, oceanfront enclave on roughly 12 acres of tropical landscaping with deeded beach access.
The building offers 138 residences ranging from two-bedroom layouts to five-bedroom penthouses across eight floor plans, with interiors spanning roughly 2,570 to 4,810 square feet plus terraces. Residences feature high ceilings, generous terraces, private entry foyers, and key-operated elevators.
Amenities
- Oversized heated swimming pool and Jacuzzi
- Tennis courts
- Spa
- Fitness center
- Social/community room
- Deeded beach access
- Key-operated elevators
- Concierge
- Valet parking
- 24-hour security
Income
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Population
Age Distribution (%)
Housing Tenure
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Key Biscayne, FL 33149
Available Residences at Grand Bay Residences
5 Bedroom Condos · 1 unit
| Unit | Asking Price | Bed(s)/Bath(s) | Living Size | Price/Sq.Ft. | Days on Market |
|---|---|---|---|---|---|
| 1A | $18,900,000 | 5 / 6 / 1 | 8,435 | $2,241 | 178 |
4 Bedroom Condos · 1 unit
| Unit | Asking Price | Bed(s)/Bath(s) | Living Size | Price/Sq.Ft. | Days on Market |
|---|---|---|---|---|---|
| 303 | $3,850,000 | 4 / 5 / 1 | 3,480 | $1,106 | 45 |
2 Bedroom Condos · 1 unit
| Unit | Asking Price | Bed(s)/Bath(s) | Living Size | Price/Sq.Ft. | Days on Market |
|---|---|---|---|---|---|
| 418 | $2,520,000 | 2 / 3 / 1 | 1,760 | $1,432 | 31 |
Compare every Key Biscayne building, its inventory, and area market trends in one place.
ANALYTICS
CURRENT INVENTORY
INVENTORY BY BEDROOM
- 5+ Bed (1) 100%
INVENTORY TREND (ALL UNITS)
Market & Community Report
As of August 12, 2026, Grand Bay Residences carries 1 active listing at an average asking price of $18.9M, with an average time on market of 178 days. Closed sales over the preceding 36 months averaged $1,061 per sq ft, and 3 transactions closed in the past 12 months — implying 4 months of supply against the current pace of absorption.
Zip code 33149 (Key Biscayne) is home to 14,628 residents with a median age of 43.2. Per-capita income stands at $106,219; 77.1% hold a bachelor's degree or higher. 69.4% of units are owner-occupied; 34.6% of residents work from home.
Explore the full Key Biscayne market intelligence report — pricing trends, inventory & sales pace →
Data current as of August 12, 2026. Market metrics derived from MLS closed sales; community data from U.S. Census ACS.
Frequently Asked Questions — Grand Bay Residences
How many condos are for sale at Grand Bay Residences?
As of August 12, 2026, 1 residence is actively listed for sale at Grand Bay Residences. Current asking prices range from $18.9M to $18.9M. Inventory updates daily from the MLS.
How much do condos at Grand Bay Residences cost?
Condos at Grand Bay Residences are currently asking from $18.9M to $18.9M. Over the past 36 months, closed sales have averaged $1,061 per square foot. Final pricing varies by floor, line, square footage, finishes, and view.
What is the average price per square foot at Grand Bay Residences?
Based on MLS closed sales over the preceding 36 months, the average sale price at Grand Bay Residences is $1,061 per square foot. Use this as a benchmark when comparing active listings in the building.
Where is Grand Bay Residences located?
Grand Bay Residences is located at 445 Grand Bay Dr, Key Biscayne, FL, 33149, in the Key Biscayne area.
What neighborhood is Grand Bay Residences in?
Grand Bay Residences is in Key Biscayne, Key Biscayne. You can compare every condo building, home inventory, and price trend across Key Biscayne on its neighborhood guide.
How many units are in Grand Bay Residences?
Grand Bay Residences has 137 residences across 14 stories.
What year was Grand Bay Residences built?
Grand Bay Residences was completed in 1996.
What amenities does Grand Bay Residences offer?
Grand Bay Residences amenities include Oversized heated swimming pool and Jacuzzi, Tennis courts, Spa, Fitness center, Social/community room, Deeded beach access, Key-operated elevators, Concierge.