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445 Grand Bay Drive #PH-2A, Key Biscayne, FL - photo 1

$12,990,000

445 Grand Bay Drive #PH-2A

Key Biscayne, FL 33149

Estimated payment $75,603/month

includes HOA $9,343/mo · estimated tax · estimated insurance · 20% down, 6.5%, 30 yr

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4Beds
6Baths
7,400Sq Ft
$1755Price/Sq Ft

Preferred partner

Kinsfolk Realty

Kinsfolk Signature Realty

Powered by Hometrino

(813) 602-0498

Highlights

HOA $9,343/mo
Built in 1996

About This Home

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.

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Facts & features

Bedrooms & bathrooms

  • •Bedrooms:4
  • •Bathrooms:6 (5 full, 1 half)
  • •Full bathrooms:5
  • •Half bathrooms:1

Heating

  • •Has Heating:Yes

Interior area

  • •Total structure area:7,400 sqft
  • •Total interior livable area:7,400 sqft

Parking

  • •Parking features:N/A
  • •Garage spaces:0
  • •Has attached garage:No

Lot

  • •Size:N/A

Details

  • •Parcel number:N/A

Type & style

  • •Home type:Condominium
  • •Property subtype:Residential

Materials

  • • N/A

Condition

  • •Year built:1996

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Price history

DateEventPrice
2026-11-01T00:00:00.000ZListed for sale$12,990,000$1755/sqft

Listing Agent

Brigitte Nachtigall

One Sotheby's International Realty

Brokerage Phone: 305-365-2811

Source: Beaches MLS · MLS #A12113410

Data Powered by Home Junction, Inc.

Nearby

Schools

KEY BISCAYNE K-8 CENTER

Elementary · 0.5 mi

UNIVERSITY OF MIAMI COOPERATIVE INSTITUTE FOR MARINE AND ATMOSPHERIC STUDIES (CIMAS)

2.7 mi

Supermarkets

Key Biscayne Green Market

0.4 mi

Winn-Dixie

0.4 mi

NAHUEN Gourmet Market

0.4 mi

Dining

Oceana Key Biscayne Restaurant

0.1 mi

Ocean Club Cabana

0.3 mi

Panna

0.4 mi

Parks

Paradise Park

0.4 mi

Hampton Park

0.6 mi

Harbor Park

0.9 mi

Beaches

Crandon Park Beach

0.2 mi

Crandon Beach

1.1 mi

Hobie Island Beach Park

3.8 mi

Nearby amenity locations include data © OpenStreetMap contributors.