The First Daigokuden was located directly north of Suzaku-mon Gate, the main gate of the Heijo-kyu Palace (the Imperial Palace of Heijo-kyo), and the Second Daigokuden was moved to a little to the east of Heijo-kyu.
第一次大極殿は平城宮の正門である朱雀門の真北に位置していたが、第二次大極殿は平城宮東寄りに移動している。