Efremidis Gallery occupies the whole ground floor of a listed building designed for IBM by Rolf Gutbrod and Hermann Kiess in the early 1960s. The ground floor housed the data centrum of the blue giant which explains the higher than usual ceiling filled with air vents and -ducts. The approximately 400 m² space has been carefully redesigned by Gonzales Haase / AAS and CAMA A during the summer of 2018. Many original architectural features were retained in order to encourage site-specific projects. The gallery space on Ernst-Reuter-Platz 2 also hosts [ERP Projekt].