Eight Penthouses. One Island. No More Will Ever Be Built.
Key Biscayne is a barrier island with a hard building cap. There are exactly 8 penthouse listings right now — and when they're gone, you wait. Possibly for years. This is not a market where you browse casually. If a Key Biscayne penthouse appears, the window is measured in days, not months.
Where They Are
- Oceana Key Biscayne — Jeff Koons sculpture in the lobby. Direct ocean. The most prestigious condo address on the island. Penthouses above $10M.
- One Ocean — Mexican architect Enrique Norten. Only 50 residences. A curated contemporary art collection in the common areas. If Oceana is the power address, One Ocean is the design address.
- Club Tower Two — Crandon Blvd, the island's main artery. Established, well-maintained, with the community infrastructure (tennis, pool, beach club) that newer buildings can't replicate.
Why Families Pay $10M+ to Live Here
- A-rated schools — Key Biscayne K-8 Center and MAST Academy are among the best in Miami-Dade
- Crandon Park + Bill Baggs — two state parks on one island, miles of beach without the crowds
- 10 minutes to Brickell — island living without island isolation
- Security — one road in, one road out. Latin American families value this above all else.
The Math on Scarcity
Key Biscayne has roughly 6,000 residential units total. Of those, maybe 30-40 could qualify as "penthouses." At any given time, 5-10 are for sale. Supply will never increase. Every year, demand grows as more families relocate to South Florida. This is the one Miami market where the long-term value proposition is mathematically inevitable.
See what's available right now — or contact us to be notified the moment a Key Biscayne penthouse hits the market.