The Opera House, the head of performance-arts in Korea, is the grand space which has 6 floors aboveground and 1 floor underground. In the Opera House, the works of various genres such as opera, musical, play and ballet and styles such as classical, modern, avant-garde have been performed. The Opera House consists of the Opera Theater for operas which are called the 'Synthetic Arts', the Towol Theater exclusively for plays, the Jayu Theater for the avant-garde and the experimental performances, 6 rehearsal rooms (for opera, ballet, play, dance, chorus, acting), the many attached rooms and the facilities. Through the cooperation of these supreme staffs and facilities, the Opera House gives the strength and vigor to the field of performing arts. In this chapter, through the detailed explanation about the stage technical information of the Opera House, we want to enhance the understanding about the characteristics of stage, and to seek the high-level stage utilized the various techniques.

The Opera House of the Seoul Arts Center(SAC) has 6 rehearsal rooms according to the purposes. The rooms have the good interior-decoration and the attached facilities for users. Each one is classified into opera, ballet, play, dance, chorus, and acting rehearsal rooms. The following is the list of the sizes and the attached facilities of the rehearsal rooms.