450 Alton Road PH1 is listed for $54.5 million by Liz Hogan and Stephanie Roy with Compass.

Sitting atop the Philippe Starck designed ICON building in Miami Beach’s in-demand South of 5th neighborhood, this tri-level penthouse redefines luxury with rare views and ample amenities.

The pièce de résistance of this six bedroom, seven and half bath penthouse in the sky is its massive 11,000-square foot private enclosed rooftop oasis with a saltwater pool, several lounge areas, BBQ area and two levels of terraces.

The interiors are accessed by a private elevator that opens up to panoramic views of Downtown Miami and Miami Beach – showcased in nearly every room. The main family room is flanked by coveted views and boasts stunning furnishings and accent pieces including several tiled columns, chandeliers and artwork dawning the walls. Additional features include two family rooms, two wine cellars, a bar, spacious bedrooms, sleek bathrooms and parking for up to six vehicles.