In 2011, Kleine Olympiahalle – the small 'cousin' of Olympiahalle of 1972 – was opened, giving additional space for up to 3,600 possible attendees. It can be used as separate event location or in combination with old Olympiahalle, to which Kleine Olympiahalle is directly connected through a short tunnel. Via a gap between hall and foyer of Kleine Olympiahalle, visitors can gain access to both former and new buildings. The event room is day light flooded. Architects Auer Weber integrated the building into the landscape design of Olympiapark retaining the orginal concept of 1972.