According to "Ansho-ji Garan Engi Shizai-cho" (records of materials used in the construction of Ansho-ji Temple) (currently in the possession of To-ji Temple) written by Keiun in the year 867, the Kami-dera included a main hall consisting of a Reibutsu-do (prayer hall) and a Godai-do (hall dedicated to the five guardian kings), eastern and western monks' living quarters, a kuri (food preparation building) and a bathing hall while the Shimo-dera was a site of approximately 20,000 square meters including a pagoda, a Buddha statue hall, monks' living quarters and a gate tower.
恵運が貞観_(日本)9年(867年）に作成した「安祥寺伽藍縁起資財帳」（現在東寺蔵）によると、上寺には礼仏堂と五大堂とから成る堂院・東西僧房・庫裏・浴堂などの施設が、下寺には約2万平方メートルの寺域内に塔・仏堂・僧坊・門楼などがあったとされる。