5-Bed Condominium at GRAND BAY RESIDENCES COND,GRAND BAY in Key Biscayne

$18,900,000

Brickellsold Estimate* (fallback: list price)$18,900,000 (list price)

Listing courtesy of One Sotheby's International Realty; Brigitte Nachtigall. Information from the Southeast Florida Multiple Listing Service is deemed reliable but is not guaranteed accurate.

For Sale
bedrooms

5

bathrooms

5

Square Footage

8435

Type of Property

Condominium, Residential

Details

Overview

Sub Type
Condominium
Price Per Sqft
$2,241/sqft
Built In
1997
Taxes
$54,141/yr
Maintenance Fee
$9,923/yr

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.

This condominium home located at 445 Grand Bay Drive # 1A, Key Biscayne FL 33149 is currently for sale and has been available on Brickellsold for 180 days. This property is listed at $19M. It has 5 beds, 5 bathrooms, and is 8435 square feet. It was built in 1997. 445 Grand Bay Drive # 1A, Key Biscayne FL 33149 is in Key Biscayne county Miami-Dade County.

Interior

Bedrooms
5
Bathrooms
6
Bathrooms Full
5
Features
  • Flooring: Carpet, Marble, Wood
  • Common walls with other units/homes: Corner Unit, High Rise, Penthouse
Heating
Electric
Cooling
Electric
Appliances
Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Microwave, Electric Range, Refrigerator, Wall Oven, Washer
Total structure area
11,260
Total interior livable area
8,435 sqft

Property

Parking
  • Parking Features: 2 Or More Spaces,Covered,Valet,No Rv/Boats,No Trucks/Trailers
Parcel Number
24-52-05-049-1350
Features
  • Entry location: Built-in Features, Closet Cabinetry, Entrance Foyer, Pantry, Volume Ceilings, Walk-In Closet(s), Wet Bar, Den/Library/Office, Family Room, Great Room
  • Exterior Features: Open Balcony
  • Has View: Yes
  • View Description: Bay, Ocean View, Direct Ocean

Construction

Property subtype
Condominium, Residential
Attached to another structure
Yes
Materials
CBS Construction
Condition
  • Year Built: 1997

Community & HOA

Community
  • Security Features: Fire Alarm, Smoke Detector, Elevator Secure, Secured Garage/Parking, Guard At Site
  • Senior Community: Yes
  • Subdivision: GRAND BAY RESIDENCES COND,GRAND BAY
HOA
  • Has HOA: Yes
  • Amenities: Bike Storage, Community Room, Exercise Room, Pool
Region
Key Biscayne

Financial

Price Per Sqft
$2,241/sqft
Taxes
$54,141/yr
Maintenance Fee
$9,923/yr
On Market Date
2/13/2026
Listing Terms
All Cash, Conventional

Metadata

Added
2/14/2026
Updated
8/13/2026
MLS#
A11954185
Days on Market
180
Listed By
One Sotheby's International Realty
Originating MLS
A-Miami Association of REALTORS

Neighborhood Insights

School and crime data are from public sources and are informational only.

Nearby Schools

Within 5 miles

  • Key Biscayne K-8 Center 0.0 mi • K-12
  • Marjory Stoneman Douglas Biscayne Nature Center 0.0 mi • K-12
  • Maritime & Science Technology Academy 0.0 mi • K-12

Nearby Hospitals

Within 3 miles

No nearby hospitals found.

Crime Overview

Crime data unavailable for this area.

Map

Price History

EventPriceDate
Original list price$18,900,000Feb 14, 2026

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