The Paris Department Store is the first building in Hungary built exclusively for warehouse function using a reinforced concrete-skeleton structure, qualifying it as a national monument. It was built in 1909-11 in the style of industrial art-nuovo on the site of a former neo-renaissance Casino building. In the 60s the building has undergone a major refurbishment that affected the style and use of the building. Until 1991 it operated as a well-known department store typical of the socialist era. By acquiring the building in 2006, the aim of ORCO was to revitalise the building and give it back the prestige it used to carry.