Abstract
This research tried to elucidate why and how the shopping district of the Owaricho was declining since the middle of the Showa era by directing attention to the long-term changes in the number of the stores, especially long-established ones, in Owaricho. In order to show the changes this study mainly made use of the land register, "Tochidaicho", of the Owaricho , and the way used in this work could be applied in other regions in Japan because most of the areas in Japan possess "Tochidaicho". This method can lay a foundation of the long-term resesarch on a shopping district.