Several cladding materials were used in the building in a such a manner to be in compliance with each other and the steel construction used in two sides of the building were covered by composite panel plates and the 20 meter high circular columns were designed to encounter all wind loads and by taking all the vertical and horizontal loads into consideration. The door and window wings with a large heat isolation and in square form were made working without any problems by means of tilt and turn accessories that enable vasistas and wing opening. Structural silicon curtain wall system was manufactured in fractions to be in compliance with the circular form of the building. The vertical load carrying profiles to be used at the curtain wall were designed on the basis of the maximum wind load. The circular structural silicon cladding sides on the upper and bottom parts of the building were formed by steel construction thus breezes of the modern architectural manner have been supplied.