Abstract
In the middle-age of Japan, many carpenters belonged to temples and they organized guilds called "Za" under the authority of temples. "Za" continued to exist from the early part of 13th c. to the end of 16th c. They succeeded to "Daiku" or the master of carpenter in order of age and experience. The temples were constructed by each "Za" exclusively. On the other hand, the construction of residences of priest-aristocracy was engrossed by "Daiku" himself and its right was succeeded by his heir. This paper treats of the monopoly for building construction of "Daiku" in Nara in 15th century and is based on the historical records of Kamanokuchi-za and Bodaisan-za which are guilds belonged to Chogakuji temple and Shoryakuji temple respectively.
