The building has an L-shaped plan with two rectilinear blocks of differing heights sitting at right angles, with a circular hall at the ground floor designed in an International Modern style, influenced strongly by Le Corbusier. The British engineer Ove Arup was commissioned to oversee some of the elements of the design, such as the wavy concrete canopy which overhangs the concourse. It was designed to be a multi-functional building, with a restaurant, nightclub, cinema and other services all housed within it. The building incorporated a number of materials to create texture, such as brass, Danish bronze, copper, Portland stone cladding, Irish oak flooring, terrazzo stairways, and mosaics designed by Patrick Scott. Some of this original detailing remains.