Daisen-in Temple was constructed at the time when 'toko no ma' (lit. alcove rooms) were starting to appear, and this main hall has been designated a National Treasure for its possession of what is considered to be the oldest toko no ma in Japan as well as the oldest entrance hall in the country.
「床の間」が現れるのもこの時代で、大仙院の床の間は日本最古とされ、「玄関」も日本最古の玄関として国宝に指定されている。