18555 COLLINS AVENUE CONDO UNIT PH-1 UNDIV 1.7414% INT IN COMMON ELEMENTS OFF REC 28399-2439 Penthouse One at Porsche Design Tower is the pinnacle of opulent living, a mansion in the sky where innovation & design meet timeless sophistication. Encompassing nearly 10,000 SF of interiors & more than 6,500 SF of private terraces, this 3-story residence is crowned by an expansive rooftop retreat. The grand room soars to 22-ft double-height ceilings offering uninterrupted ocean and intracoastal views. Exquisite stone floors, a glass-enclosed wine cellar, theater room, define elegance at every turn. A private 3,328 sf sky garage for 6 cars sets a new standard in luxury living.  At its summit, the rooftop sanctuary, two shimmering pools, summer kitchen, and sweeping panoramas offers an uncompromising resort experience above the shoreline.