The purpose of this study is to make clear the relationship between the traditional arrangement of buildings and the management of the snowy environments through the Yoko-Ido watercourse system. We compared the usage of space and ponds around the house in terms of summer and winter. We have come to understand that different levels of composition elements of the premises constitute the system managing not only snowy environments but also topographical features, weather and planning of the house. Furthermore, we have understood that the system is formed by the idea of acceptance of snowfall.