The purpose of this paper is to clarify changes within an area along Old Sanyo Street in Saijo, in terms of the usage of the closed shop-houses and the sites and buildings established for Japanese brewing companies. Literature documentation, a measuring survey, and interviews were conducted. The findings are as follows. The area flourished as a place for rest and relaxation in the Edo era. However, now it is inactive because the number of shops has decreased and some sites were converted into parking lots in the late 20th century. Activity along the street has fallen considerably, because the closed shop-houses have been used only for storage or have become vacant, while the living areas are located at the back. The Japanese brewing companies were established in the early 20th century, yet moved to enlarged sites nearby and out of the area. They converted surplus spaces along the street for public use. After that, a touring network of public spaces inside the companies'sites along the street was established. These changes shifted the active area of Old Sanyo Street from the street itself to the insides of the companies'sites.