At the end of the 8th century, there were To-ji (east temple) to the east and Sai-ji (west temple) to the west of Rajomon gate in front of Heiankyo; Sai-ji declined in its ealy days, and in its place there now stands Sai-ji Ato no Hi monument in Karahashi Sai-ji Park near Karahashi in Kyoto's Minami Ward; there is a small temple in the area that has inherited only the name of Sai-ji.
8世紀末、平安京の正門にあたる羅城門の東西に「東寺」と「西寺」（さいじ）西寺は早い時期に衰退し、現在は京都市南区唐橋の近隣公園・唐橋西寺公園内に史跡西寺跡の碑があり、付近に西寺の寺名のみを継いだ小寺院が残るのみである。