The Odeon in Ephesus was built in the 2C AD and had a double function. First it was a theater for theatrical performances as well as being the Bouleterion. It was the Senate House which was used by the boule, the advisory council of the city. It has always been very difficult to identify bouleterion buildings as they did not have typical characteristics. It was a two-storied building covered with a wooden roof with a seating capacity of 1,400 people. It consisted of three main sections; cavea, skene and proskene.