[1] The Daikan-daiji ruins are located on the right bank of the Asuka River, on flat land south of Mount Amanokagu.

According to the Daianji Garan Engi and Ruki Shizaichō (Daianji Zaichō) from 747 and the Nihon Shoki and Shoku Nihongi, when Prince Tamura (later Emperor Jomei) visited the sick Prince Shōtoku, he asked him to rebuild the Kumagoi Seisha as an official temple.

By tradition, the Kumagoi Seisha was located in what is now Yamatokōriyama, and corresponds to the ruins of Nukata-dera.

Per the Nihon Shoki and the Daian-ji Zaizaichō (Record of Daian-ji Temple Collection), the temple was relocated by Emperor Temmu in 673, and renamed the Takaichi-Ōdera (高市大寺) and was subsequently renamed Daikandai-ji (大官大寺) in 677.

In some places, traces of burnt rafters from the roof that had fallen into the ground were still visible, and in the holes left by the scaffolding at the middle gate and corridors, burn marks were also found in the holes left by the scaffolding from the construction work, suggesting that the fire occurred during construction.