Aldar’s HQ in Abu Dhabi, United Arab Emirates is the first spherical building in the Middle East, standing at approximately 110 meters in height with 23 floor levels. The building has a diameter of 120.9 meters; its width varies from 10 meters at ends to 36.4 meters in the middle. Its structural design consists of a central concrete core for transferring environmental lateral loads, with peripheral diagrid support columns forming the building’s envelope. The building comprises 6400 tons of steel; 55,000 square meters of decking panels; and 25,000 cubic-meters of concrete, and has an area of glass of 25,000 square meters (3200 panels of glass). It will have a total gross floor area of 61,900 square meters and a total net area of 51,361 square meters. It includes many complicated elements, such as peripheral diagrid columns, an outer ring, internal ring, central ring columns, diagrid nodes, and an in-plane truss connecting the outer, internal and central columns at all floor levels. The roof is an integral part of the building with primary beams in line with the columns.