Skip To Content

445 Grand Bay Drive , Ph-1A

Key Biscayne, FL 33149
  • $18,900,000
  • STATUS: Active
  • ON SITE: 177 Days
  • MLS #: A11954185
$18,900,000
  • 5
    BEDS
  • N/A
    ACRES
  • 5
    BATHS
  • 1
    1/2 BATHS
  • 8,435
    SQFT
  • $2,241
    $/SQFT
Type:
Condo
Built:
1997
County:

School Information

Elementary School:

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.

Monthly Payment Calculator



Copyright 2026, Participating Associations/MLS’s in the SEFMLS, MIAMI Association of REALTORS, Realtor Association of Greater Ft. Lauderdale, South Broward Board of Realtors. All rights reserved. The data relating to real estate for sale on this web site comes in part from the participating Associations/MLS’s in the Southeast Florida Regional Multiple Listing Service cooperative agreement, MIAMI Association of REALTORS, Realtor Association of Greater Ft. Lauderdale, South Broward Board of Realtors. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Copyright 2026, Participating Associations/MLS’s in the SEFMLS, MIAMI Association of REALTORS, Realtor Association of Greater Ft. Lauderdale, South Broward Board of Realtors. All rights reserved. Use of search facilities of data on the site, other than a consumer looking to purchase real estate, is prohibited. Data last updated 2026-08-10T23:51:12.17.
www.miami1.com/homes/173060592
Print Image

445 Grand Bay Drive , Ph-1A Key Biscayne, FL 33149

  • Price: $18,900,000
  • Status: Active
  • On Site: 177 Days
  • MLS #: A11954185
5
Beds
5
Baths
1
½ Baths
N/A
Acres
8,435
SQFT
$2,241
$/SQFT
1997
Built
Neighborhood:
Grand Bay Residences Cond,Grand Bay
County:
Miami-Dade
Area:
Grand Bay Residences Cond
Elementary School:
Keybiscayne
Property 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.
Exterior Features

Architectural Style Corner UnitHigh RisePenthouse Carport Spaces 0 Construction Materials CBS Construction Covered Spaces 0 Direction Faces East Exterior Features Open Balcony Garage YN No Inclusions Deeded Beach Access Parking Features 2 Or More SpacesCoveredValetNo Rv/BoatsNo Trucks/Trailers Patio And Porch Features Open Balcony Pool Private YN No Property Attached YN Yes View BayOcean ViewDirect Ocean View YN Yes Waterfront Features Ocean AccessOcean Front Waterfront YN Yes

Interior Features

Appliances DishwasherDisposalDryerElectric Water HeaterIce MakerMicrowaveElectric RangeRefrigeratorWall OvenWasher Building Area Total 11260 Cooling Electric Entry Level 14 Entry Location Foyer Flooring CarpetMarbleWood Furnished Unfurnished Heating Electric Heating YN Yes Interior Features Built-in FeaturesCloset CabinetryEntrance FoyerPantryVolume CeilingsWalk-In Closet(s)Wet BarDen/Library/OfficeFamily RoomGreat Room Levels 1 Master Bathroom Features BidetDual SinksSeparate Tub & Shower Other Equipment Automatic Garage Door Opener Room Bedroom Features Primary Bath ShowerPrimary Bath TubPrimary Bedroom Ground Level Room Dining Room Features Breakfast AreaEat-In KitchenFormal Dining Window Features BlindsDrapes

Property Features

Association Amenities Bike StorageCommunity RoomExercise RoomPool Association Fee 0 Association Fee Frequency Monthly Association YN Yes Building Name GRAND BAY Cooling YN Yes Electric Fuse Box Horse YN No Land Lease Amount 0 Listing Terms All CashConventional Maintenance Expense 9923 Maintenance Includes Cable TvCommon AreaLandscaping/Lawn MaintenanceManagerSecuritySewerWater Membership Purch Rqd YN No New Construction YN No Pets Allowed Restrictions Or Possible Restrictions Property Sub Type Condominium Public Survey Section 5 Restrictions No Trucks/Rv'SOk To Lease Security Features Fire AlarmSmoke DetectorElevator SecureSecured Garage/ParkingGuard At Site Senior Community YN Yes Structure Type Condo 5+ StoriesCondo Tax Annual Amount 54141 Tax Year 2025 Type Of Association Condo Year Built Details Resale

Listing courtesy of One Sotheby's International Realty: .


Copyright 2026, Participating Associations/MLS’s in the SEFMLS, MIAMI Association of REALTORS, Realtor Association of Greater Ft. Lauderdale, South Broward Board of Realtors. All rights reserved. The data relating to real estate for sale on this web site comes in part from the participating Associations/MLS’s in the Southeast Florida Regional Multiple Listing Service cooperative agreement, MIAMI Association of REALTORS, Realtor Association of Greater Ft. Lauderdale, South Broward Board of Realtors. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Copyright 2026, Participating Associations/MLS’s in the SEFMLS, MIAMI Association of REALTORS, Realtor Association of Greater Ft. Lauderdale, South Broward Board of Realtors. All rights reserved. Use of search facilities of data on the site, other than a consumer looking to purchase real estate, is prohibited. Data last updated 2026-08-10T23:51:12.17.
 
https://bt-photos.global.ssl.fastly.net/miami/1280_boomver_1_A11954185-2.jpg https://bt-photos.global.ssl.fastly.net/miami/1280_boomver_1_A11954185-2.jpg https://bt-photos.global.ssl.fastly.net/miami/1280_boomver_1_A11954185-2.jpg
Logo
The Bill and Bryan Team | Douglas Elliman Real Estate
1111 Lincoln Rd Suite 805
Miami Beach FL, 33139