Planar Characteristics of the Previous Main Building of the Former Sasagawa House Proved From the Historical Plan Drawing

This study clarifies the planar characteristics of the previous main building of the former Sasagawa house proved from the historical plan drawing. The main results are as follows. The drawing is based on a measurement survey conducted between 1781 and 1796. The building has fewer rooms and is about 72% the size of the current building. The plan combines family and governmental functions within a single building. The building has numerous pillars and a misaligned floor plan. The rooms are arranged in a front-to-back sequence. The storerooms originally occupied the area now used as living rooms.