- $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
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City: Key Biscayne
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State/county: Miami-Dade
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Zip/Postal Code: 33149
Details
Updated on August 11, 2026 at 7:55 pm-
Property ID A11954185
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Price $18,900,000
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Property Size 8435 Sq Ft
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Bedrooms 5
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Bathrooms 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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AssociationAmenities Bike Storage, Clubhouse, Fitness Center, Management, Pool
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AssociationFee 9923
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AssociationFeeFrequency Monthly
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AssociationFeeIncludes Common Areas, Cable TV, Maintenance Grounds, Sewer, Security, Water
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BathroomsFull 5
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BathroomsHalf 1
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BuildingAreaTotal 11260
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BuildingName 445
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CLIP 2909765689
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CarportSpaces 0
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CoListAgentAOR Miami Association of REALTORS
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CoListAgentDirectPhone 305-803-6956
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CoListAgentEmail jorge@jorgebojpa.com
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CoListAgentFirstName Jorge
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CoListAgentFullName Jorge Boj
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CoListAgentKey 26744305
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CoListAgentKeyNumeric 26744305
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CoListAgentLastName Boj
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CoListAgentMlsId SEF3016066
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CoListAgentNationalAssociationId 277009050
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CoListAgentOfficePhone 305-365-2811
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CoListAgentPreferredPhone 305-803-6956
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CoListAgentStateLicense 3016066
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CoListAgentURL http://www.miamimarketreport.com
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CoListOfficeAOR Miami Association of REALTORS
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CoListOfficeEmail MLS@onesothebysrealty.com
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CoListOfficeKey 5900284
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CoListOfficeKeyNumeric 5900284
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CoListOfficeMlsId SEFOSIR04
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CoListOfficeName One Sotheby's International Realty
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CoListOfficePhone 305-365-2811
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CommonInterest Condominium
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ConstructionMaterials Block
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ContractStatusChangeDate 2026-02-14
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Cooling Electric
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CoveredSpaces 0
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CumulativeDaysOnMarket 178
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CurrentPrice 18900000
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DaysOnMarket 178
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DaysOnMarketReplication 178
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DaysOnMarketReplicationDate 2026-08-11
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DaysOnMarketReplicationIncreasingYN 1
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DirectionFaces East
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Disclosures Flood Plain Disclosure
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DocumentsCount 0
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Electric Fuses
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ElementarySchool Key Biscayne K-8
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EntryLevel 14
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Flooring Carpet, Marble, Wood
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Furnished Unfurnished
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Heating Electric
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HighSchool Coral Gables
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InternetAddressDisplayYN 1
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InternetAutomatedValuationDisplayYN 1
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InternetEntireListingDisplayYN 1
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LandLeaseAmount 0
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Levels One
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ListAOR Miami REALTORS
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ListAgentAOR Miami Association of REALTORS
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ListAgentDirectPhone 305-710-9664
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ListAgentEmail Brigitte@bnachtigall.com
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ListAgentFirstName Brigitte
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ListAgentFullName Brigitte Nachtigall
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ListAgentKey 26743840
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ListAgentKeyNumeric 26743840
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ListAgentLastName Nachtigall
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ListAgentMlsId SEF0542022
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ListAgentNationalAssociationId 277006651
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ListAgentOfficePhone 305-365-2811
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ListAgentPreferredPhone 305-710-9664
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ListAgentStateLicense 0542022
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ListOfficeAOR Miami Association of REALTORS
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ListOfficeEmail MLS@onesothebysrealty.com
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ListOfficeKey 5900284
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ListOfficeKeyNumeric 5900284
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ListOfficeMlsId SEFOSIR04
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ListOfficeName One Sotheby's International Realty
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ListOfficePhone 305-365-2811
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ListingAgreement Exclusive Right To Sell
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ListingContractDate 2026-02-14
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ListingKey 1153018484
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ListingKeyNumeric 1153018484
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ListingTerms Cash, Conventional
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MLSAreaMajor 2520
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MajorChangeTimestamp February 14, 2026 at 12:00am
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MajorChangeType New Listing
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MapCoordinateSource Imported
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MiddleOrJuniorSchool Ponce De Leon
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MlsStatus Active
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MobileDimUnits Feet
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ModificationTimestamp August 11, 2026 at 05:59pm
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OccupantType Vacant
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OnMarketDate 2026-02-14
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OnMarketTimestamp 2026-02-14T00:00:00.000-00:00
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OpenHouseModificationTimestamp 2026-08-11T13:57:24.820-00:00
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OpenParkingSpaces 2
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OriginalEntryTimestamp February 14, 2026 at 12:28pm
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OriginalListPrice 18900000
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OriginatingSystemCoListAgentMemberKey 1220731
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OriginatingSystemCoListOfficeKey 1262483
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OriginatingSystemID M00000151
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OriginatingSystemKey 534595633
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OriginatingSystemListAgentMemberKey 1218049
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OriginatingSystemListOfficeKey 1262483
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OriginatingSystemModificationTimestamp 2026-08-11T13:57:24.820-00:00
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OriginatingSystemName BEACH
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OriginatingSystemSubName BEACH_MIAMI
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OtherParking CarportSpaces:0.00
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ParcelNumber 2452050491350
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ParkingFeatures Covered, Garage, Garage Door Opener, Valet
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PatioAndPorchFeatures Open, Balcony
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Permission IDX
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PetsAllowed Pet Restrictions, Yes
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PhotosChangeTimestamp August 11, 2026 at 05:59pm
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PhotosCount 104
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PoolFeatures Association
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Possession Negotiable
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PostalCity Key Biscayne
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PostalCode 33149
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PostalCodePlus4 1905
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PropertyCondition Resale
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PropertySubTypeAdditional Condominium
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PublicSurveyTownship 24
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RoomsTotal 3
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SecurityFeatures Elevator Secured, Fire Alarm, Secured Garage/Parking, Smoke Detector(s), Security Guard
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SourceSystemID TRESTLE
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SourceSystemKey 1153018484
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SourceSystemName flexmls
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SpecialListingConditions Listed As-Is
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StateOrProvince FL
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StatusChangeTimestamp February 14, 2026 at 12:00am
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Stories 1
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StoriesTotal 14
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StreetName Grand Bay
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StreetNumber 445
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StreetNumberNumeric 445
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StreetSuffix Drive
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SubdivisionName GRAND BAY RESIDENCES COND
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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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UniversalPropertyId US-12025-N-2452050491350-R-N
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Utilities Cable Available
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VideosChangeTimestamp 2026-08-11T17:59:37.753-00:00
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VideosCount 0
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View Bay, Ocean
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WaterfrontFeatures Beach Access, Deeded Access, Ocean Access, Ocean Front
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WindowFeatures Blinds, Drapes, Rods
Features
- Balcony
- Bathtub
- Bidet
- Breakfast Area
- Built-in Features
- Closet Cabinetry
- Dining Area
- Dishwasher
- Disposal
- Dryer
- Dual Sinks
- Eat-in Kitchen
- Electric Range
- Electric Water Heater
- Entrance Foyer
- Has a View
- Has Cooling System
- Has Heating System
- Has Waterfront
- High Ceilings
- Home Owners Association
- Ice Maker
- Main Level Primary
- Microwave
- Outdoor Living Area
- Oven
- Pantry
- Refrigerator
- Senior Community
- Separate Shower
- Separate/Formal Dining Room
- Soaking Tub
- Walk-In Closet(s)
- Washer
- Wet Bar
Overview
- Condominium
- 5
- 5
- 0
- 8435 Sq Ft
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Down Payment
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Loan Amount
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Contact Information
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