がらんどうだったら
伽藍堂だったら
garandōdattara

Noun
Da Copula
na-Adjective
no-Adjective

The "-tara" conditional form ("if/when…") of がらんどう

1. If/when the hall of the temple…; If the hall of the temple were…

Tara Conditional
Buddhism
Usually Written in Kana