445 Grand Bay Drive Unit PH-2A, Key Biscayne, FL 33149

$12,990,000 — Active

Property Features

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Experience oceanfront living at its finest in this extraordinary floor-through penthouse at Grand Bay Residences, one of Key Biscayne’s most prestigious luxury addresses. Encompassing an impressive 7,400 square feet under A/C, this exceptional residence offers breathtaking panoramic views of the Atlantic Ocean, Biscayne Bay, and the Miami skyline. Two magnificent, oversized terraces facing east and west create an unparalleled indoor-outdoor living experience, where spectacular sunrises over the ocean and unforgettable sunsets over the bay become part of everyday life. Beautifully upgraded and designed for both grand entertaining and comfortable living, the residence features expansive living areas, an elegant formal dining room, gourmet kitchen, and private home theater. The magnificent primary suite is a true private sanctuary, featuring a generous walk-in closet and two separate, beautifully appointed bathrooms, offering the ultimate in comfort, privacy, and luxury. Three additional spacious bedrooms, each with its own en-suite bathroom, provide exceptional comfort and privacy. Residents enjoy an extraordinary resort-style lifestyle with direct beach and ocean access, concierge and valet services, a state-of-the-art fitness center, a spectacular swimming pool, and the impeccable service of Grand Bay’s dedicated professional staff. A rare opportunity to own a truly remarkable penthouse where space, sophistication and breathtaking views capture the best of this island.

Property Details

  • Listing ID: A12113410
  • Status: Active
  • Listing Date: 2026-11-02
  • Property Type: Condominium
  • Unit / Building #: PH-2A
  • Subdivision: GRAND BAY RESIDENCES COND
  • County: Miami-Dade
  • MLS Area: 2520
  • Bedrooms: 4
  • Full Bathrooms: 5
  • Half Bathrooms: 1
  • Living Area Sq Ft: 7,400
  • Year Built: 1996

Financial

  • List Price: $12,990,000
  • HOA Fee: $9,343/mo
  • Taxes: $56,046/yr

Features & Amenities

  • View: Bay, Direct Ocean, Ocean
  • 55+ Community (HOPA): Yes
  • Furnished: Unfurnished
  • Pets Allowed: Yes
  • Parking: Covered, Valet
  • Cooling: Electric
  • Heating: Electric
  • Flooring: Ceramic Tile, Marble
  • Construction: CBS
  • Interior Features: Built-in Features, Entrance Foyer, Pantry, Walk-In Closet(s), Closet Cabinetry
  • Exterior Features: Balcony
  • Community Amenities: Fitness Center, Management, Pool, Trash Chute, Bike Storage, Community Room, Maintenance

Courtesy of One Sotheby's International Realty
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© 2026 Starfish Real Estate. Listings updated Nov 11, 2026 5:00 am. Listing data is derived from the Broker Reciprocity Program of the Realtor Association of Indian River County (RAIRC) and BeachsMLS. Properties listed by brokers other than Starfish Real Estate are identified with the applicable MLS logo and include the listing broker's name. Not all properties available through either MLS may be displayed. All MLS data is the copyrighted property of the respective MLS and its participants. Data is deemed reliable but is not guaranteed accurate and should be independently verified prior to entering into any transaction.