$18,900,000
445 Grand Bay Drive PH-1A, Key Biscayne, FL 33149, Unit PH-1A
Grand Bay Residences Cond
Beds
5 Beds
Baths
5.5 Baths
Living Area
8,435 Sq Ft
Built
1997
Days Listed
180
Price Per Sq Ft
$2,241/sqft
Listed
Feb 14, 2026
Garage
0 spaces
Property Type
Condominium
Property Overview
This 5-bedroom waterfront condominium at 445 Grand Bay Drive PH-1A, Key Biscayne, FL 33149, Unit PH-1A in the Grand Bay Residences Cond community with 8,435 square feet of living area, built in 1997 is listed for $18,900,000. Notable MLS signals include Deeded Beach Access.
MLS Public Remarks
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.
Key Biscayne Property Snapshot
Property Type
Residential
Sub Type
Condominium
Stories
14
Total Baths
5.5
Building Area
11,260 sq ft
Condition
Resale
MLS #
A11954185
Waterfront, Boating & Outdoor
Waterfront
Yes
Waterfront
Deeded Beach Access, Ocean Access, Ocean Front
View
Bay, Direct Ocean, Ocean
Interior & Construction
Interior Features
Built-in Features, Entrance Foyer, High Ceilings, Pantry, Wet Bar, Walk-In Closet(s), Closet Cabinetry
Primary Bedroom
Bidet, Dual Sinks, Master Bdrm - Ground, Separate Shower, Separate Tub
Rooms
Den, Family Room, Great Room
Appliances
Electric Water Heater, Dryer, Disposal, Dishwasher, Electric Range, Ice Maker, Microwave, Oven, Refrigerator, Washer
Flooring
Carpet, Marble, Wood
Construction
CBS
Heating
Electric
Cooling
Electric
Furnished
Unfurnished
Impact Glass
Partial
Parking, HOA & Rules
Garage Spaces
0
Open Parking
2
Parking Features
Covered, Garage Door Opener, Valet
Community / Access
Fitness Center, Management, Pool, Bike Storage, Community Room
Association Fee
$9,923 / Monthly
Pets Allowed
Yes, Pet Restrictions Possible
Restrictions
Parking - No RV, Parking - No Trailer, Parking - No Truck
Taxes, Utilities & MLS
Annual Taxes
$54,141
Tax Year
2025
Parcel Number
2452050491350
County
Miami-Dade
MLS Area
2520
Utilities
Cable Available
Photos
52
Listing courtesy of One Sotheby's International Realty
Listing Agent: Brigitte Nachtigall
All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc.
The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of the BeachesMLS. Real estate listings held by brokerage firms other than Levin Investments, Inc are marked with the IDX logo and detailed information about them includes the name of the listing broker. Data provided is deemed reliable but is not guaranteed. All information is subject to change and should be independently verified.
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