The Austrian Federal Chancellor Leopold Figl made the decision in 1946 to have a functioning opera house again by 1949. An architectural competition was announced, which was won by Erich Boltenstern. The submissions had ranged from a complete restructuring of the auditorium to a replica of the original design; Boltenstern decided on a design similar to the original with some modernisation in keeping with the design of the 1950s. In order to achieve a good acoustic, wood was the favoured building material, at the advice of, among others, Arturo Toscanini. In addition, the number of seats in the parterre (stalls) was reduced, and the fourth gallery, which had been fitted with columns, was restructured so as not to need columns. The façade, entrance hall and the "Schwind" foyer were restored and remain in their original style.