From records it is known that by the mid eighth century, Kensaku-do Hall and the Senju-do Hall were already built in Kinshu-ji Temple, and the Kensaku-do Hall is believed to be the predecessor of the current Hokke-do Hall (= Sangatsu-do Hall; the principal image there is the Fukukenjaku Kannon [Amoghapasa] [manifestation of Amalokitesvara]).
金鐘寺には、8世紀半ばには羂索堂、千手堂が存在したことが記録から知られ、このうち羂索堂は現在の法華堂（＝三月堂、本尊は不空羂索観音）を指すと見られる。