This paper offers the analysis of and concideration the houses in the architectural documents made by the master-builders, namely the Yokota family in the late Edo era. There are many obscure drawings in this documents, and so we will try to clear the name of them. As a result of our research, we can poit out the following findings: drawind I is the plan of Watanabe House, drawing II is Tanaka House, drawing III is Yomogita House A, drawing IV is Yomogita House B.
