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For Sale
Listed on February 14, 2026

445 GRAND BAY DR, Unit PH-1A

$18,900,000
5 Beds
6 Baths
8,435 sqft
0 Parkings
HOA fees:
-
Annual Tax:
$54,141
Occupancy:
Vacant
Year Built:
1996
Stories:
13
Days on market:
147 days ago

Description

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.
One Sotheby's International Realty

Features & Details

Learn about the features and details of 445 GRAND BAY DR, Unit PH-1A

Property Details

  • Property Type
    Condominium
  • Living Area
    8,435 sqft
  • Year Built
    1997
  • Lot Size
    -
  • Stories
    14 Stories
  • Annual Tax
    $54,141
  • List Date
    2/14/2026
  • Updated
    6/11/2026
  • Last Checked
    Recent
  • MLS Number
    #A11954185
  • Brokerage
    One Sotheby's International Realty
  • Postal Code
    33149
  • Area
    Miami-Dade
  • City
    Key Biscayne

Additional Property Features

  • Occupancy
    Vacant
  • List Price
    $18,900,000
  • Unit Number
    PH-1A
  • Construction
    Block
  • Heating
    Electric
  • Fireplaces
    -
  • Garage
    -
  • Parking Type
    Covered, Two or more spaces, Valet, Garage door opener
  • Pets Allowed
    Conditional,Yes
  • Air Conditioning
    Electric
  • Elevator
    No
  • Locker
    No
  • Swimming Pool
    Association
  • Patio
    Balcony,Open
  • Basement
    No
  • Den
    No
  • Central Vacuum
    No
  • Garage Type
    No

Additional Listing Information

  • Walk Score
  • Property Manager
    -
  • Utilities Included
    Water, Cable
  • Furnished
    Unfurnished
  • Assessment Year
    2025
  • Assignment
    No
  • Extras Included
    Built in oven, Dryer, Dishwasher, Electric range, Electric water heater, Disposal, Ice maker, Microwave, Refrigerator, Washer

Inside

  • Bedrooms & Baths
    5 Bed, 6 Bath
  • Bedrooms
    5
  • Full Bathrooms
    6
  • Ensuite
    Yes
  • Bathrooms
    6
  • Flooring
    Mixed

Price history

Learn about the price history of 445 GRAND BAY DR, Unit PH-1A

Amenities

Discover the amenities available at 445 GRAND BAY DR, Unit PH-1A

  • Bike storage
  • Clubhouse
  • Fitness center
  • Pool

Building details

Check more details about the Grand Bay Residences building

Main building photo
Grand Bay Residences condo
For sale: 2
|
For rent: 1
View Details

Real estate trends

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Explore Miami-Dade

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FAQs About Grand Bay Residences - 445 GRAND BAY DR, Unit PH-1A

445 GRAND BAY DR, Unit PH-1A, MLS® A11954185 has a size of 8435 sqft.

There are 5 bedrooms and 6 bathrooms in this Condo at 445 GRAND BAY DR, Unit PH-1A, MLS® A11954185.

Annual taxes for this home are $54,141 based on 2025 tax year reports.

The building's pet policy is as follows: Conditional,Yes. Please contact the property manager or listing agent to confirm specific details, restrictions, and any associated fees that may apply.
Miami Association of REALTORS®
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.
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445 GRAND BAY DR, Unit PH-1A
445 GRAND BAY DR, Unit PH-1A