Key Biscayne Penthouses for Sale

Beyond the Rickenbacker tollgate, tucked between two state parks, Key Biscayne functions as Miami's island village — a K-8 school and streets where children pedal to the beach. Ordinance limits the condo count and no new building has opened since 2014, which means the scarcity driving prices here is entirely real.

A penthouse is the top of the Key Biscayne market in the most literal sense — the highest floors, the deepest terraces, and the views the rest of the building is priced to look up at. In a market known for a family island village between two state parks, fifteen minutes from Brickell, penthouses trade as trophy assets, valued on light, outdoor square footage and provenance as much as interior size, and the best of them rarely sit on the market for long. This page narrows Key Biscayne to penthouse residences only.