Thereafter, Jianzhen had a building to house Kaidanin at Todai-ji Temple, and had kaidan at Kanzeon-ji Temple in Dazaifu in Tsukushi Province and Yakushi-ji Temple in Shimotsuke Province (present Shimotsuke City, Tochigi Prefecture) (Three Major Kaidan in Japan).
その後、東大寺に戒壇院を建立し、筑紫の太宰府の観世音寺、下野国（現在の栃木県）の薬師寺(下野市)に戒壇を築いた（天下の三戒壇）。