Experience oceanfront living at its finest in this extraordinary floor-through penthouse at Grand Bay Residences, one of Key Biscayne’s most prestigious luxury addresses. Encompassing an impressive 7,400 square feet under A/C, this exceptional residence offers breathtaking panoramic views of the Atlantic Ocean, Biscayne Bay, and the Miami skyline. Two magnificent, oversized terraces facing east and west create an unparalleled indoor-outdoor living experience, where spectacular sunrises over the ocean and unforgettable sunsets over the bay become part of everyday life. Beautifully upgraded and designed for both grand entertaining and comfortable living, the residence features expansive living areas, an elegant formal dining room, gourmet kitchen, and private home theater. The magnificent primary suite is a true private sanctuary, featuring a generous walk-in closet and two separate, beautifully appointed bathrooms, offering the ultimate in comfort, privacy, and luxury. Three additional spacious bedrooms, each with its own en-suite bathroom, provide exceptional comfort and privacy. Residents enjoy an extraordinary resort-style lifestyle with direct beach and ocean access, concierge and valet services, a state-of-the-art fitness center, a spectacular swimming pool, and the impeccable service of Grand Bay’s dedicated professional staff. A rare opportunity to own a truly remarkable penthouse where space, sophistication and breathtaking views capture the best of this island.
Listing Provided Courtesy of One Sotheby’s International Realty at 305-365-2811
Property Details
Price:
$12,990,000
MLS #:
A12113410
Status:
Active
Beds:
4
Baths:
5.5
Type:
Condo
Subtype:
Condominium
Subdivision:
GRAND BAY RESIDENCES COND
Neighborhood:
2520
Listed Date:
Nov 2, 2026
Finished Sq Ft:
7,400
Total Sq Ft:
7,400
Year Built:
1996
See this Listing
Schools
Elementary School:
Key Biscayne K-8
Middle School:
Ponce De Leon
High School:
Coral Gables
Interior
Appliances
Electric Water Heater, Dishwasher, Disposal, Dryer, Electric Range, Ice Maker, Microwave, Oven, Refrigerator, Washer
Bathrooms
5 Full Bathrooms, 1 Half Bathroom
Cooling
Electric
Flooring
Ceramic Tile, Marble
Heating
Electric
Interior Features
Built-in Features, Closet Cabinetry, Entrance Foyer, Pantry, Walk-In Closet(s)
Exterior
Association Amenities
Maintenance, Pool, Bike Storage, Community Room, Fitness Center, Management, Trash Chute
Community
55+
Construction Materials
CBS
Direction Faces
East
Exterior Features
Balcony
Open Parking Spaces
1
Parking Features
Covered, Valet
Security Features
Elevator Secure, Fire Alarm, Fire Sprinkler System, Secured Garage/Parking, Security System, Smoke Detector(s)
Senior Community YN
1
View
Ocean, Direct Ocean, Bay
Waterfront Features
Ocean Access, Deeded Beach Access, Ocean
Window Features
Blinds
Financial
HOA Fee
$9,343
HOA Fee Frequency
Monthly
HOA Includes
Pool Service, Common Areas, Maintenance Grounds, Maintenance Structure, Security, Sewer, Trash, Water
Tax Year
2025
Taxes
$56,046
Map
Community
- Address445 Grand Bay Drive PH-2A Key Biscayne FL
- SubdivisionGRAND BAY RESIDENCES COND
- CityKey Biscayne
- CountyMiami-Dade
- Zip Code33149
Market Summary
Current real estate data for Condo in Key Biscayne as of Nov 02, 2026
115
Condo Listed
113
Avg DOM
1,162
Avg $ / SqFt
$2,637,621
Avg List Price
Property Summary
- Located in the GRAND BAY RESIDENCES COND subdivision, 445 Grand Bay Drive PH-2A Key Biscayne FL is a Condo for sale in Key Biscayne, FL, 33149. It is listed for $12,990,000 and features 4 beds, 6 baths, and has approximately 7,400 square feet of living space, and was originally constructed in 1996. The current price per square foot is $1,755. The average price per square foot for Condo listings in Key Biscayne is $1,162. The average listing price for Condo in Key Biscayne is $2,637,621.
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