445 Grand Bay Drive #ph-1a, Key Biscayne, FL

$18,900,000

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5

Beds

6

Baths

8,435

Square feet

About 445 Grand Bay Drive #ph-1a

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.

Features of 445 Grand Bay Drive #ph-1a

MLS® # A11954185
USD $18,900,000
CAD $26,073,117
CNY 元126,826,560
EUR €16,225,763
GBP £13,936,028
RUB ₽1,610,274,330
HOA Fees $9,923
Bedrooms 5
Bathrooms 6.00
Full Baths 5
Half Baths 1
Year Built 1997
Type Residential
Sub-Type Condominium
Restrictions Parking - No RV, Parking - No Trailer, Parking - No Truck
Unit Floor 14
Status Active
HOPA Yes
Membership Equity No

Community Information

Address 445 Grand Bay Drive #ph-1a
Area 2520
Subdivision GRAND BAY RESIDENCES COND
Development GRAND BAY
City Key Biscayne
County Miami-Dade
State FL
Zip Code 33149

Amenities

Amenities Fitness Center, Management, Pool, Bike Storage, Community Room
Utilities Cable Available
Parking Spaces 2
Parking Covered, Garage Door Opener, Valet
View Bay, Direct Ocean, Ocean
Is Waterfront Yes
Waterfront Deeded Beach Access, Ocean Access, Ocean Front
Has Pool No
Pets Allowed Yes, Pet Restrictions Possible
Unit Corner/End Unit, Penthouse, High Rise
Subdivision Amenities Fitness Center, Management, Pool, Bike Storage, Community Room
Security Fire Alarm, Secured Garage/Parking, Security Guard, Smoke Detector(s), Elevator Secure
Guest House No

Interior

Interior Features Built-in Features, Entrance Foyer, High Ceilings, Pantry, Wet Bar, Walk-In Closet(s), Closet Cabinetry
Appliances Electric Water Heater, Dryer, Disposal, Dishwasher, Electric Range, Ice Maker, Microwave, Oven, Refrigerator, Washer
Heating Electric
Cooling Electric
Fireplace No
# of Stories 14
Master Bedroom Bidet, Dual Sinks, Master Bdrm - Ground, Separate Shower, Separate Tub

Exterior

Exterior Features Balcony
Windows Blinds, Drapes, Rods
Construction CBS
Front Exposure East

School Information

Elementary Key Biscayne K-8
Middle Ponce De Leon
High Coral Gables

Additional Information

Date Listed February 14th, 2026
Days on Market 207
Foreclosure No
Short Sale No
RE / Bank Owned No
HOA Fees 9923
HOA Fees Freq. Monthly
Parcel ID 2452050491350

Listing Details

OfficeOne Sotheby's International Realty
EmailBrigitte@bnachtigall.com

Listing Map

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