The disc-shaped HQ building, the world’s first circular skyscraper, was the first building of the Al Raha Beach Project to be completed in the Al Dana area on the Arabian Gulf coast. The building envelope, one of the most complex components to be executed, consists of a 20,000 sqm (215,300 sq ft) unitized glass façade - the main elevations oriented east-west - and 4,000 sqm (43,000 sq ft) of aluminum composite sheet cladding before the diagrid members. Instead, the north-south elevation has a 1,500 sqm (16,100 sq ft) unitized glass façade that yields to a glazed skylight at the top of the building plus 4,400 sqm (47,300 sq ft) of aluminum composite sheet cladding at the perimeter.