Royal Swedish Opera architect Carl Fredrik Adelcrantz was commissioned by King Gustav III, a strong adherent of the ideal of an enlightened absolutism and as such was a great patron of the arts. The Swedish Opera company had first been located in Bollhuset, but there was a need to separate the Opera from the theatre and give them separate buildings. Construction began in 1775 and the theatre was inaugurated on 30 September 1782 with a performance of the German composer Johann Gottlieb Naumann's "Cora och Alonzo". It was also the place for public masquerade balls, events inspired from the famous opera-balls in Paris,
Verdi Square of the new head house has incorporated Verdi Square as part of the pedestrian complex. This, coupled with an increased NYPD presence in the new head house, has decreased the area's popularity among criminals and aided the gentrification of the neighborhood. In 2006 a group of Upper West Side music lovers in partnership with the New York City Department of Parks and Recreation created the annual Verdi Square Festival of the Arts: a series of three free outdoor September Sunday afternoon concerts presenting young musicians in repertoire ranging from opera to bluegrass. The festival brings music back to a square