Penthouse 1 – Cosabella on the Bay | Miami Beach | 1930 Bay Drive Experience elevated waterfront living in Penthouse 1 at Cosabella on the Bay, a rare new-construction residence offering 2,551 square feet interior space directly on the wide-open waters of Biscayne Bay. This offering represents one of the most compelling values for true bayfront, boutique luxury in Miami Beach. Set within an exclusive, low-density building, PH1 delivers a level of privacy, tranquility, and unobstructed water exposure that is increasingly difficult to find in today’s market. Floor-to-ceiling glass frames sweeping bay views, while the thoughtfully designed layout maximizes natural light and seamless indoor-outdoor flow.2551 Sf of interior living space and an 1800 Sf terrace.