Welcome to your private paradise in Key Biscayne. This exceptional penthouse seamlessly merges two residences on the Northeast and Southeast corners, offering an unmatched living experience. Designed by the renowned Geoffrey Bradfield, celebrated as the "billionaire's designer," this home embodies sophistication and elegance. Spanning 13,630 sq. ft., with 10,421 sq. ft. under air and over 3,000 sq. ft. of terraces, it features 100 feet of oceanfront showcasing stunning sunrises and sunsets. Highlights include a formal living room, formal dining room, chef’s kitchen, four en-suite bedrooms, two private offices, two powder rooms, two staff rooms, a bar, and a family room. Just steps away from the beach, with soaring ceilings and exquisite design, this penthouse redefines luxury living.
For sale
$33,900,000
430 Grand Bay Dr #PENTHOUSE 1AN, Key Biscayne, FL 33149
4beds
10,421sqft
Est.:
Condominium
Built in 1999
-- sqft lot
$-- Zestimate®
$3,253/sqft
$-- HOA
What's special
Exceptional penthousePrivate paradiseFour en-suite bedroomsNortheast and southeast cornersFamily roomTwo private officesStunning sunrises and sunsets
- 165 days
- on Zillow |
- 826 |
- 28 |
Zillow last checked: 7 hours ago
Listing updated: April 03, 2025 at 12:01pm
Listed by:
Brigitte Nachtigall 305-710-9664,
One Sotheby's International Realty,
Jorge Boj 305-803-6956,
One Sotheby's International Realty
Source: MIAMI,MLS#: A11715395
Originating MLS: A-Miami Association of REALTORS

Travel times
Tour with a buyer’s agent
Tour with a buyer’s agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 6
- Full bathrooms: 4
- 1/2 bathrooms: 2
Rooms
- Room types: Den/Library/Office, Family Room, Great Room
Heating
- Electric
Cooling
- Electric
Appliances
- Included: Dishwasher, Disposal, Dryer, Electric Water Heater, Microwave, Electric Range, Refrigerator, Oven, Washer
- Laundry: Laundry Room
Features
- Built-in Features, Closet Cabinetry, Entrance Foyer, Volume Ceilings, Walk-In Closet(s), Maid/In-Law Quarters, Storage
- Flooring: Ceramic Tile
- Windows: Blinds
- Common walls with other units/homes: Corner Unit
Interior area
- Total structure area: 13,630
- Total interior livable area: 10,421 sqft
Property
Parking
- Parking features: 2 Or More Spaces, Guest, Valet, No Rv/Boats
Features
- Entry location: Foyer
- Exterior features: Balcony
- Pool features: Association
- Has view: Yes
- View description: Bay, Ocean
- Has water view: Yes
- Water view: Bay,Ocean
- Waterfront features: Ocean Access, Ocean Front
Details
- Parcel number: 2452050600960
Construction
Type & style
- Home type: Condo
- Property subtype: Condominium
- Attached to another structure: Yes
Materials
- CBS Construction
Condition
- Year built: 1999
Community & HOA
Community
- Security: Fire Sprinkler System, Fire Alarm, Smoke Detector, Complex Fenced, Elevator Secure, Secured Garage/Parking
- Subdivision: Grand Bay Tower Condo
HOA
- Has HOA: Yes
- Amenities included: Bike Storage, Community Room, Fitness Center, Pool
- Application fee: $150
- Pet fee: $0
Location
- Region: Key Biscayne
Financial & listing details
- Price per square foot: $3,253/sqft
- Tax assessed value: $11,601,200
- Annual tax amount: $153,827
- Date on market: 1/3/2025
- Listing terms: All Cash,Conventional
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