Grand Bay Residences, 445 Grand Bay Dr #PH-1A

5
Beds
51/2
Baths
8,435
SqFt
$2,241
$/SqFt
High-End Condo
Built in 1997
Bay,Ocean View
Waterfront
High Rise, Penthouse
Balcony
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.
MLS Number: A11954185
On Site: 234 Days
Updated: 54 Days ago
Page Views: 0

Features

Bedrooms
  • Bedrooms: 5
Bathrooms
  • Bathrooms: 5
  • Half Bathrooms: 1
Exterior and Lot Features
  • Exterior Features: Balcony, SecurityHighImpactDoors
  • View: Bay,Ocean
Interior, Heating and Cooling
  • Interior Features: WetBar, Bidet, BuiltInFeatures, BreakfastArea, Bathtub, ClosetCabinetry, DiningArea, SeparateFormalDiningRoom, DualSinks, EntranceFoyer, EatInKitchen, HighCeilings, MainLevelPrimary, Pantry, SeparateShower, WalkInClosets
  • Equipment / Appliances: BuiltInOven, Dryer, Dishwasher, ElectricRange, ElectricWaterHeater, Disposal, IceMaker, Microwave, Refrigerator, Washer
  • Heating Description: Electric
  • Cooling Description: Electric
Building and Construction
  • Floor Description: Carpet, Hardwood, Marble, Wood
  • Windows/Treatment: Blinds,Drapes
  • Year Built: 1997
  • Year Built Description: Resale
  • Style: HighRise,Penthouse
Waterfront and Water Access
  • Waterfront Frontage: Yes
School Information
  • Elementary School: Keybiscayne
Other Property Info
  • Garage: No info
  • Listing Date: 2026-02-14T11:28:32.000-00:00
  • Directions: East
  • Pets Allowed: Conditional,Yes
Taxes, Fees & More
  • Maintenance Includes: AssociationManagement, CommonAreas, CableTv, MaintenanceGrounds, Sewer, Security, Water
  • Taxes: 54141
  • Security Information: ElevatorSecured, SecuredGarageParking, SecurityGuard, SmokeDetectors
  • Parking Description: Covered, TwoOrMoreSpaces, Valet, GarageDoorOpener
  • Total Floors in Building: 14

Apples-to-Apples Comparables

 Closest-Match Comparables
See closest-match comps for this subdivision
No obligation
Verified
Trends
Insights
Best of Luxury Realty
Talk to a local advisor
Licensed advisors answering your questions across Key Biscayne, FL
01
Licensed Brokerage
02
Local Advisors
03
Direct Answers
Exclusive real estate service partner

Price History

Date
Event
Price
Change
Price Per
01/28/2026
Listed
$18.9M
 
$2,241 ft2
$24,119 m2
01/28/2026
$18.9M
Event
Listed
Price Per
$2,241 ft2
$24,119 m2
Price per square foot and days on website are not provided values and are calculated by Subdivisions.
Listed by Brigitte Nachtigall • One Sotheby's International Realty • Buyer Agency Compensation .

Transit & Commute from Grand Bay Residences

DriveBikeWalk
Showing driving times from this listing.
Add a destination to see how long it takes to get there
24
Traffic score
Congested area. Frequent traffic delays
Sign in to add destinations and see commute times

Listing Location & Street View

MapStreet View

Peer Listings

Active listings from matched communities
Results 0 of 0
No listings found
Try adjusting your filters or changing your location to see available listings
Turn on listing alerts and we'll notify you
when matching listings appear

Scores

Walk Score®
Car-Dependent. Most errands require a car
49

100
Bike Score®
Bikeable. Some bike infrastructure
54

100
Sound Score®
Bearable noise
82

100
Airport Score
Close to airports. Noticeable airport activity
0

100
Traffic Score
Congested area. Frequent traffic delays
24

100
Local Score
Limited local amenities nearby
0

100
Community Snapshot
4 – 5 BR
Bedrooms
$4M – $18.9M
Price Tier
1,720 - 8,435
SqFt Range
1996
Year Build
14
Total Floors
137
Total Units

Subdivision Amenities

Barbecue
Beach Rights
Bike Storage
Cabana
Clubhouse
Community Kitchen
Elevators
Fitness Center
Guard
Hobby Room
Management
Playground
Pool
Sauna
Storage
Trash

Key Biscayne
High-End
High-End Homes & Condos

Grand Bay Communities in Key Biscayne, FL

Key Biscayne, FL Nearby Cities

Key Biscayne, FL Price Range Segments