The complex consists of the following venues: The Peace and Friendship Stadium SEF, known as S.E.F.
The arena which was built in 1981 and it opened in 1985[1] had previously hosted various major international events, including the Final tournament of the 1987 Men's European Basketball Championships and preliminary games of the 1998 FIBA World Basketball Championships.
However, for home playoff matches of the Olympiacos basketball club, for which the SEF arena is their regular home court, the seating capacity can be increased to 16,000-17,000 with temporary seating.
It was the site of preliminary matches in handball and the taekwondo competition in the 2004 Summer Olympics at Athens.
The arena was completed on December 20, 2003, and officially opened on August 12, 2004, shortly before the Olympics.