445 Grand Bay Drive # 1A, Key Biscayne FL 33149 | Miami-Dade County | A11954185
  • $18,900,000

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.

Property Overview

Perched high above Key Biscayne, this corner penthouse at Grand Bay offers expansive views of the Atlantic Ocean, Biscayne Bay, and the Miami skyline. Originally featured in *Architectural Digest*, the residence is known for its scale and design, with 12-foot ceilings and grand, open spaces. The layout includes five bedrooms, five full bathrooms, and a half bathroom, along with a large foyer, a formal dining room, and a redesigned kitchen and family room. The home also features a private library and a custom bar, adding to its functional and luxurious appeal. The property spans 8,435 square feet under air, with an additional 2,825 square feet of terraces according to the developer's floor plan. Located in the Grand Bay Residences Condo, it enjoys no HOA fees. The terraces and open-concept spaces are ideal for entertaining or enjoying the natural light and scenery Key Biscayne offers. For more details or to see the home, call 305-859-4733.

Frequently Asked Questions

What are the square footage details of this penthouse?

The residence spans 8,435 square feet under air and includes 2,825 square feet of terraces, for a total of 11,260 square feet as per the developer’s floor plan.

How many bedrooms and bathrooms does this property have?

The penthouse offers five full bedrooms and one half bathroom.

Is there an HOA fee associated with this condo?

No, there is no HOA fee for this property.

What city and building is this property located in?

The property is located in Key Biscayne and is part of the Grand Bay building.

What is the listing price of this penthouse?

The listing price for this penthouse is $18,900,000.

What are the highlights of the layout and design?

The home features soaring 12-foot ceilings, a dramatic foyer, a grand room suitable for large-scale entertaining, a separate formal dining room, a remodeled kitchen and family room, and a private library with a custom bar.

Monthly Fees & Carrying Costs

Condo Maintenance Fee $9,923 / month
Total Monthly Fees $9,923 / month
  • Membership Required: No
  • Application Fee: $150 (one-time)
  • Address: Grand Bay Drive
  • City: Key Biscayne
  • State/county: Miami-Dade County
  • Zip/Postal Code: 33149
  • Area: GRAND BAY RESIDENCES COND, GRAND BAY

Details

Updated on June 27, 2026 at 1:49 pm
  • Property ID A11954185
  • Price $18,900,000
  • Property Size 8435 Sq Ft
  • Bedrooms 5
  • Room 0
  • Bathrooms 5.5
  • Garage 0
  • Year Built 1997
  • Type Condominium
  • Property Status Active, Residential

Additional details

  • Flooring Carpet, Marble, Wood
  • Waterfront Features Ocean Access, Ocean Front
  • Bedroom Features Primary Bath Shower, Primary Bath Tub, Primary Bedroom Ground Level
  • Cooling Electric
  • Association Type Condo
  • Building GRAND BAY
  • Association Fee Frequency Monthly
  • Area Grand Bay Residences Cond
  • Annual Tax 54141
  • Maintenance Fee Paid Per Monthly
  • Association Yes
  • Elementary School Keybiscayne
  • Private Pool No
  • Listing Terms All Cash, Conventional
  • Waterfront Yes
  • Full Bathrooms 5
  • Subdivision GRAND BAY RESIDENCES COND,GRAND BAY
  • Total Stories 14
  • Restrictions No Trucks/Rv'S, Ok To Lease
  • Maintenance Includes Cable Tv, Common Area, Landscaping/Lawn Maintenance, Manager, Security, Sewer, Water
  • Amenities Bike Storage, Community Room, Exercise Room, Pool
  • Parking 2 Or More Spaces, Covered, Valet, No Rv/Boats, No Trucks/Trailers
  • Heating Electric
  • Structure Type Condo 5+ Stories, Condo
  • Tax Year 2025
  • Construction CBS Construction
  • Building Area 11260
  • Covered Spaces 0
  • Unit Floor 14
  • View Bay, Ocean View, Direct Ocean
  • Year Built Details Resale
  • Pets Allowed Yes
  • Attached Yes
  • Unit Number PH-1A
  • Inclusions Deeded Beach Access
  • Half Bathrooms 1
  • Flood Zone AE
  • Patio / Porch Open Balcony
  • New Construction No
  • Garage Spaces 0
  • Style Condo 5+ Stories
  • Association Fee 0
  • Lot Size (Sq Ft) 0
  • Membership Purchase Required No

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Christopher Lazaro

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