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

Key Biscayne
Local realty services provided by:CENTURY 21 North East
445 Grand Bay Drive #PH-1A,Key Biscayne, FL 33149
$18,900,000
  • 5 Beds
  • 6 Baths
  • 8,435 sq. ft.
  • Condominium
  • Active
Listed by: brigitte nachtigall, jorge boj
Office: one sotheby's international realty305-365-2811
MLS#:A11954185
Source:SEFMLS

Price summary

  • Price:$18,900,000
  • Price per sq. ft.:$1,678.51

About this home

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...

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Home facts

  • Year built:1997
  • Subdivision & Development:GRAND BAY RESIDENCES COND
  • Listing ID #:A11954185
  • Updated:October 31, 2026 at 09:59 AM

Rooms and interior

  • Bedrooms:5
  • Total bathrooms:6
  • Full bathrooms:5
  • Half bathrooms:1
  • Flooring:Carpet, Hardwood, Marble, Wood
  • Dining Description:Breakfast Area, Dining Area, Separate Formal Dining Room
  • Bathrooms Description:Bidet, Dual Sinks, Separate Shower
  • Kitchen Description:Built In Oven, Dishwasher, Disposal, Electric Range, Ice Maker, Microwave, Pantry, Refrigerator
  • Bedroom Description:Main Level Primary, Walk-In Closets
  • Living area:8,435 sq. ft.

Heating and cooling

  • Cooling:Electric
  • Heating:Electric

Structure and exterior

  • Year built:1997
  • Building area:8,435 sq. ft.
  • Lot Features:Flood Zone
  • Architectural Style:High Rise, Penthouse
  • Construction Materials:Block
  • Exterior Features:Balcony, Open, Security High Impact Doors
  • Levels:1 Story

Schools

  • Elementary school:Keybiscayne

Finances and disclosures

  • Price:$18,900,000
  • Price per sq. ft.:$1,678.51
  • Tax amount:$54,141 (2025)

Features and amenities

  • Appliances:Built-In Oven, Dishwasher, Disposal, Dryer, Electric Range, Electric Water Heater, Ice Maker, Microwave, Refrigerator, Washer
  • Laundry features:Dryer, Washer
  • Amenities:Balcony, Bike Storage, Blinds, Closet Cabinetry, Clubhouse, Drapes, Elevator Secured, Fitness Center, High Ceilings, Pantry, Security Guard, Smoke Detectors, Wet Bar
  • Pool features:Association, Pool

Parking

  • Parking description:Covered, Garage Door Opener, Valet
Information deemed reliable but not guaranteed. Information is provided, in part, by Greater Miami MLS. This information being provided is for consumer's personal, non-commercial use and may not be used for any other purpose other than to identify prospective properties consumers may be interested in purchasing. SEFMLS Member Broker: James D’Amico

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