430 Grand Bay Drive PH1AN, Key Biscayne, FL 33149
- Beds
- 4
- Baths
- 6
- Living Area
- 9,600 SF
- Year Built
- 1999
- $/SF
- $2708
- Type
- Condominium
- DOM
- 240
4 bed · 6 bath · 9,600 sqft · Built 1999
Dominating the Key Biscayne skyline, this Geoffrey Bradfield–designed penthouse is a rare display of power, prestige, and absolute luxury. Encompassing 13,630 sq. ft. with 10,421 sq. ft. under air and 3,000+ sq. ft. of oceanfront terraces, it commands 100 feet of unobstructed beachfront with sweeping sunrise and sunset views. Directly adjacent, the $100M+ newly reimagined Ritz-Carlton and its brand-new Beach Club sit at your footsteps, elevating exclusivity to a world-class level. Inside, soaring ceilings showcase a showpiece chef’s kitchen, grand dining, four-private en-suites, a refined executive office, staff quarters, and couture-caliber closets. Includes five premium parking spaces and five oversized private storage cages. A true trophy residence at the apex of coastal luxury.
- Property type
- Condominium
- Condition
- Resale
- Year built
- 1999
- Stories
- 14
- Subdivision
- GRAND BAY TOWER CONDO
- Waterfront
- Yes
- Waterfront features
- BeachAccess,DeededAccess,OceanAccess,OceanFront
- Private pool
- No
- Parcel number
- 2452050600960
- Annual tax
- $153,827
- County just value
- $10,141,018
Key Biscayne is a barrier-island enclave — restricted access, oceanfront SFH, and an inventory measured in tens, not hundreds. Premiums reflect the geography.
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Listing data sourced from BeachesMLS / Trestle. All information herein is deemed reliable but is not guaranteed and should be independently verified. Information last updated 7/17/2026. Represented by Eleven Realty Partners, LLC d/b/a XI Realty · Equal Housing Opportunity.