The aim of this study is to consider the relation between estates and waterways in YANAGAWA. The premises and the use of waterways in MIYANAGA-machi, TOKIWA-machi, and ONIDOU-machi, which are districts built as the estates for SAMURAI in the Edo era, were examined. As a result, it is revealed that the forms and the systems are different with districts which reflect classes and locations. Further, the new dwelling styles corresponding to the site characteristics appear.