The Konzerthaus Berlin is a concert hall situated on the Gendarmenmarkt square in the central Mitte district of Berlin housing the German orchestra Konzerthausorchester Berlin. Built as a theatre from 1818 to 1821 under the name of the Schauspielhaus Berlin, later also known as the Theater am Gendarmenmarkt and Komödie, its usage changed to a concert hall after the Second World War and its name changed to its present one in 1994.