- Overview
- Description
- Property Details
- Location
- HOA Management
- Facts & Features
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Street View
$18,900,000
Monthly Est:$94,072
5 Beds
- 6 Baths
5 full baths + 1 half bath
8,435sqft
445 Grand Bay Dr #PH-1A, Key Biscayne, FL 33149
$18,900,000
$94,072/moEst:
Get Pre-Approved
Condominium
Built in 1997
$9,923/mo HOA
-- sqft lot
$2,241/sq.ft
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.
- Houzeo last checked: 1 minute ago
- Listing updated: October 31, 2026 at 7:47 am
- Listing Provided by: Brigitte Nachtigall DRE #0542022, Jorge Boj (305) 803-6956 DRE #3016066 | One Sotheby's International Realty (305) 365-2811
- Source: Beaches MLS-FL | MLS#: A11954185

This condo is in:
Property Details
Status
Active
Type
Condominium
No. of Stories
14
County
City
Neighborhood
--
Year Built
1997
HOA Fees
$9923/mo
Finished Area
8,435 sqft
Lot Size
-- sqft lot
Basement Area
- sqft
MLS Name
Beaches MLS
MLS Number
A11954185
MLS Status
Active
Days on Market
259
Cumulative Days on Market
258

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Location
HOA Management
N/A
HOA Fees
$9,923/ Monthly
Amenities
Amenities and services may be covered by one or multiple associations and service providers.
Cable TV
Sewer
Water
Pool
Parking
Security Guard
Maintenance
Gym
Club House
Management
CommonAreas
Disclaimer: Amenities are based on third-party information and may vary; buyers must independently verify all amenities, as information is deemed reliable but not guaranteed.
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 5
Bathrooms: 6
Interior
Heating
Electric
Interior Features
Wet Bar, Bidet, Built In Features, Breakfast Area, Bathtub, Closet Cabinetry, Dining Area, Separate Formal Dining Room, Dual Sinks, Entrance Foyer, Eat In Kitchen, High Ceilings, Main Level Primary, Pantry, Soaking Tub, Separate Shower, Walk In Closets
Cooling
Electric
Flooring
Carpet, Marble, Wood
Appliances
Dryer, Dishwasher, Electric Range, Electric Water Heater, Disposal, Ice Maker, Microwave, Oven, Refrigerator, Washer
Window Features
Blinds, Drapes, Rods
Exterior Features
Balcony, Outdoor Living Area
Construction
Year Built
Year Built: 1997
Home type
Condominium
Construction Materials
Cbs Concrete Block Structure, Block
Property Condition
Resale
Utilities & Energy
Pool Features
Association
Security Features
Elevator Secured, Fire Alarm, Secured Garage Parking, Smoke Detectors, Security Guard
Parking Features
Covered, Garage, Garage Door Opener, Valet
Utilities
Cable Available
Association Amenities
Bike Storage, Clubhouse, Fitness Center, Management, Pool
Electric
Fuses
Other Features
Patio And Porch Features
Open, Balcony
Disclosures
Flood Plain Disclosure
Subdivision Name
Grand Bay Residences Cond
Price History
| Date | Event | Price |
|---|---|---|
02/14/2026 Source: | Off Market | $18,900,000 $2,241/sqft |
02/14/2026 Source: | Listed for Sale | $18,900,000 $2,241/sqft |
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IDX information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that the data is deemed reliable but is not guaranteed accurate by BeachesMLS. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This data is not verified for authenticity or accuracy and may not reflect all real estate activity in the market. Based on information © 2026 BeachesMLS, Inc. All Rights Reserved.
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