The site is located in Kanagawa Prefecture on a mountainside that overviews a sea and a city. The client couple, who are friends of mine, and I visited there, when the project was initiated. Walking around in the pre-project site, where too many tall trees stand on, views changed variously, because of the slanted land's height differences. The experience was comparable to a pleasure of wandering in a forest. Taking a walk on a hillside or feel like so even inside the house had become a concept and we went on to continue the project, taking the slope positively.