Grand Efes Ballroom 1: 9,579.96 sq feet/890 sq metres. Can accommodate 846 guests in theatre setting, 712 guests in classroom setting, 1068 guests in reception and 623 guests in banquet settings.
Grand Efes Ballroom 2: 2,529.54 sq feet/235 sq metres. Can hold 223 guests in theatre setting, 188 guests in classroom setting, 282 guests in reception and 141 guests in banquet settings.
Grand Efes Ballroom 3: 3,982.68 sq feet/370 sq metres. Can hold 352 guests in theatre setting, 296 guests in classroom setting, 70 guests in "U" shape, 444 guests in reception and 289 guests in banquet settings.
Grand Efes Ballroom 1 + 2 + 3 combined: 16,092.18 sq feet/1,495 sq metres. Can accommodate up to 1,420 guests in theatre setting, 1,196 guests in classroom setting, 1,794 guests in reception and 1,000 guests in banquet settings.