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4 Beds
6 Baths
7,400 sqft

$12,990,000

445 Grand Bay Drive # 2A Unit: PH-2A, Key Biscayne FL, 33149

Price per sqft$1,755.41
Built in1996
Property size7,400 sqft
Property typeCondominium

Overview

Active

Listed Nov 2, 2026

Updated 16h ago

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.

$86,423/mo

Est. mortgage payment based on a $12,990,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
A12113410

Interior Features

Bedrooms
4
Bathrooms
6
Cooling
Yes
Heating
Yes
Basement
No

Other Property Details

Taxes
$56,046
Tax Frequency
Annually
Association Fee Frequency
Monthly
Maintenance Expense
$9,343
View
Yes
Waterfront
Yes
MLS provider logo

Based on information from the Miami Association of REALTORS®. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS.  All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed. 

©2026 Miami Association of REALTORS® all rights reserved. 

Data last updated 4:20 AM UTC, 11/3/2026.

Listed by:  One Sotheby's International Realty, 305-365-2811

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