As part of a redevelopment effort for the area, the space was to be developed. In 1992, Sony acquired the site from the Berlin city government for 97.2 million German marks, about $61.6 million. Shortly after, the European Commission briefly investigated whether Sony paid less than the market price. Over the following years, a total of eight buildings were designed by Helmut Jahn and Peter Walker as landscape architect and construction was completed in 2000 at a total cost of 750 million euros.