A reason for its small width is said to have come from the days when tax was imposed in accordance with the width of the entrance, and strip-shaped premises with the short side on the street are commonly seen in many regions.
間口が狭いのは、間口の大きさに応じて税金をかけていた名残だといい、道路に面して短冊形に敷地を取るタイプが各地に見られる。