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$18,900,000

  • For Sale
  • Active
  • Condo
  • 5 Beds
  • 5 Full Baths
  • 1 Partial Bath
  • 8,435 Sq. Ft.
  • Updated 9 days ago
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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.

Full Property Details for 445 Grand Bay Dr #PH-1A

General

  • Price: $18,900,000
  • Taxes: $54,141 (2025)
  • Status: Active
  • Type: Condo
  • Source: Greater_Miami
  • MLS ID: A11954185
  • Updated: 2/14/2026
  • Added to Site: 10 day(s) ago

Interior

  • Interior Features: Built-in Features, Closet Cabinetry, Entrance Foyer, Pantry, Volume Ceilings, Walk-In Closet(s), Wet Bar, Den/Library/Office, Family Room, Great Room
  • Appliances: Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Microwave, Electric Range, Refrigerator, Wall Oven, Washer
  • Furnishings: Unfurnished
  • Flooring: Carpet, Marble, Wood

Rooms

Bathrooms

  • Total Bathrooms: 6
  • Full Bathrooms: 5
  • Half Bathrooms: 1
  • Primary Bathroom: Bidet, Dual Sinks, Separate Tub & Shower

Bedrooms

  • Total Bedrooms: 5
  • Bedroom Features: Primary Bath Shower, Primary Bath Tub, Primary Bedroom Ground Level

Other Rooms

  • Living Room: Den/Library/Office, Family Sq. Ft.
  • Eat-in kitchen: Yes
  • Dining Room: Breakfast Area, Eat-In Kitchen, Formal Dining

Additional Information

  • Shared Amenities: Bike Storage, Community Room, Exercise Room, Pool
  • Maint. Includes: Cable Tv, Common Area, Landscaping/Lawn Maintenance, Manager, Security, Sewer, Water
  • Security/Safety: Fire Alarm, Smoke Detector, Elevator Secure, Secured Garage/Parking, Guard At Site
  • Equipment: Automatic Garage Door Opener

Exterior

  • Exterior Features: Open Balcony
  • Deck/Patio: Open Balcony

Parking

  • Parking Features: 2 Or More Spaces, Covered, Valet, No Rv/Boats, No Trucks/Trailers

Location

  • Area: Grand Bay Residences Cond
  • County: Miami-Dade County
  • Subdivision: GRAND BAY RESIDENCES COND, GRAND BAY
  • Building Name: GRAND BAY
  • Direction Faces: East

School Information

  • Elementary School: Keybiscayne

Community

  • Community Name: Grand Bay Residences Cond
  • Association: Yes
  • Units Assoc/Comm: 138
  • Pets Allowed: Yes
  • Adult Community: Yes

Heating & Cooling

  • Air Conditioning: Yes
  • Cooling Type: Electric
  • Heating Type: Electric

Structural Information

  • Architectural Style: Corner Unit, High Rise, Penthouse
  • Structure Type: Condo 5+ Stories, Condo
  • Detached/Attached: Attached
  • Construction: CBS Construction
  • Windows: Blinds, Drapes
  • Doors: High Impact Doors
  • Entry Floor Number: 14
  • Entry Location: Foyer
  • Building Size: 11260
  • Square Feet: 8,435
  • Living Area: 8,435 Sq. Ft.
  • Year Built: 1997

Unit Information

  • Units in Complex: 138

Lot Features

  • Property View: Bay, Ocean View, Direct Ocean

Water Features

  • Water Front: Yes
  • Water View: Yes
  • Water Front Desc.: Ocean Access, Ocean Front

Financial Considerations

  • Price Per Sq. Ft.: $2,240.66
  • Assoc Fee Freq.: Monthly
  • Tax Amount: $54,141
  • Tax Year: 2025
  • Terms: All Cash, Conventional

Disclosures and Reports

  • Legal Description: GRAND BAY RESIDENCES CONDO UNIT PH-1A UNDIV 1.7892% INT IN COMMON ELEMENTS OFF REC 17374-0773 OR 17905-3465 1297 1
  • Restrictions: No Trucks/Rv'S, Ok To Lease
  • Inclusions: Deeded Beach Access
  • Property ID: 24-52-05-049-1350

Listed by One Sotheby's International Realty

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— 445 Grand Bay Dr #PH-1A —

  • One Sotheby's International Realty

  • One Sotheby's International Realty

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with our affiliated lender
NMLS#: 1598647

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 445 Grand Bay Dr #PH-1A

School District:Dade County School District
NameGradesDistance
Key Biscayne K-8 Center
150 West McIntyre Street, Key Biscayne, FL 33149
PK-50.5 mi
Ponce De Leon Middle School
5801 Augusto Street, Coral Gables, FL 33146
6-87.2 mi
Coral Gables Senior High School
450 Bird Road, Coral Gables, FL 33146
9-127.1 mi
Disclaimer: School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 445 Grand Bay Dr #PH-1A Get Price Alerts and Save Property

Date
Details
Price
Change
Source
2/14/2026
Listed
$18,900,000
881.82%
MLS
5/16/2025
Sold
$1,925,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 445 Grand Bay Dr #PH-1A

Year
Property Taxes
Change
Tax Assessment
Change
2025
100%
100%
2024
100%
100%
2023
100%
100%
2022
100%
100%
2021
100%
100%
2020
—
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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Listed by One Sotheby's International Realty

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445 Grand Bay Drive #PH-1A, Key Biscayne, FL 33149 (MLS# A11954185) is a Condo property with 5 bedrooms, 5 full bathrooms and 1 partial bathroom. 445 Grand Bay Drive #PH-1A is currently listed for $18,900,000 and was received on February 14, 2026. Want to learn more about 445 Grand Bay Drive #PH-1A? Do you have questions about finding other Condo real estate for sale in Key Biscayne? You can browse all Key Biscayne real estate or contact a Coldwell Banker agent to request more information.

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