445 Grand Bay Drive # 1A, Key Biscayne FL 33149 | Miami-Dade County | A11954185
- $18,900,000
- $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.
Address
Open on Google Maps-
Address: Grand Bay Drive
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City: Key Biscayne
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State/county: Miami-Dade County
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Zip/Postal Code: 33149
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Area: GRAND BAY RESIDENCES COND, GRAND BAY
Details
Updated on March 13, 2026 at 3:06 am-
Property ID A11954185
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Price $18,900,000
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Property Size 8435 Square Feet
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Bedrooms 5
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Bathrooms 5.5
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Garage 0
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Year Built 1997
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Type Condominium
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Property Status Residential
Additional details
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ArchitecturalStyle Corner Unit, High Rise, Penthouse
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AssociationAmenities Bike Storage, Community Room, Exercise Room, Pool
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AssociationFee 0
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AssociationFeeFrequency Monthly
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BathroomsFull 5
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BathroomsHalf 1
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BuildingAreaTotal 11260
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BuildingAreaUnits Square Feet
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BuildingName GRAND BAY
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CarportSpaces 0
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ConstructionMaterials CBS Construction
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ContractStatusChangeDate 2026-02-14
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Cooling Electric
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CoveredSpaces 0
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DaysOnMarket 26
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DirectionFaces East
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DoorFeatures High Impact Doors
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Electric Fuse Box
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ElementarySchool Keybiscayne
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EntryLevel 14
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EntryLocation Foyer
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ExpirationDate 2026-08-11
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Flooring Carpet, Marble, Wood
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Furnished Unfurnished
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Heating Electric
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Inclusions Deeded Beach Access
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InternetAddressDisplayYN 1
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InternetAutomatedValuationDisplayYN 1
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InternetConsumerCommentYN 1
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InternetEntireListingDisplayYN 1
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LandLeaseAmount 0
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Levels 1
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ListAOR A-Miami Association of REALTORS
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ListAgentDirectPhone 305-710-9664
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ListingTerms All Cash, Conventional
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LotSizeSquareFeet 0
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MLSAreaMajor Grand Bay Residences Cond
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MaintenanceExpense 9923
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MajorChangeTimestamp February 14, 2026 at 04:28pm
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MajorChangeType New
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MlsStatus Active
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ModificationTimestamp March 12, 2026 at 11:00pm
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NumberOfUnitsInCommunity 138
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NumberOfUnitsTotal 138
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OnMarketDate 2026-02-14
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OriginalEntryTimestamp February 14, 2026 at 04:28pm
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OriginalListPrice 18900000
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OriginatingSystemID miamire
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OriginatingSystemKey miamire
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OriginatingSystemName Miami Association of REALTORS®
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OtherEquipment Automatic Garage Door Opener
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OtherExpense 0
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ParcelNumber 24-52-05-049-1350
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ParkingFeatures 2 Or More Spaces, Covered, Valet, No Rv/Boats, No Trucks/Trailers
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PatioAndPorchFeatures Open Balcony
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PetsAllowed Restrictions Or Possible Restrictions
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PhotosChangeTimestamp February 14, 2026 at 04:32pm
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PhotosCount 52
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Possession Funding
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PostalCodePlus4 1905
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PriceChangeTimestamp January 28, 2026 at 02:07pm
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PublicSurveyRange 52
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PublicSurveySection 5
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PublicSurveyTownship 52
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RoomsTotal 0
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SecurityFeatures Fire Alarm, Smoke Detector, Elevator Secure, Secured Garage/Parking, Guard At Site
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ShowingContactType Agent
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ShowingInstructions Call Listing Agent
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SourceSystemKey 426001073
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StateOrProvince FL
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StatusChangeTimestamp February 14, 2026 at 04:28pm
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StoriesTotal 14
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StreetName Grand Bay Drive
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StreetNumber 445
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StreetNumberNumeric 445
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StructureType Condo 5+ Stories, Condo
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SyndicationRemarks 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.
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TaxAnnualAmount 54141
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TaxLegalDescription GRAND BAY RESIDENCES CONDO UNIT PH-1A UNDIV 1.7892% INT IN COMMON ELEMENTS OFF REC 17374-0773 OR 17905-3465 1297 1
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TaxYear 2025
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UnitNumber PH-1A
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View Bay, Ocean View, Direct Ocean
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WaterfrontFeatures Ocean Access, Ocean Front
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WindowFeatures Blinds, Drapes
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YearBuiltDetails Resale
Features
- Built-in Features
- Closet Cabinetry
- Den/Library/Office
- Dishwasher
- Disposal
- Dryer
- Electric Range
- Electric Water Heater
- Entrance Foyer
- Family Room
- Great Room
- Has a View
- Has Cooling System
- Has Heating System
- Has Waterfront
- Home Owners Association
- Ice Maker
- Microwave
- Open Balcony
- Pantry
- Property Attached
- Refrigerator
- Senior Community
- Volume Ceilings
- Walk-In Closet(s)
- Wall Oven
- Washer
- Wet Bar
Mortgage Calculator
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Down Payment
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Loan Amount
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Monthly Mortgage Payment
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Property Tax
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Home Insurance
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PMI
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Monthly HOA Fees