This is a private residence built on a sloping property surrounded by a natural environment alongside the Hinatamigawa River, which flows through the Shima Onsen area, one of the most famous onsen (hot spring) areas in Gunma Prefecture. We planned a long, skinny, one-story wooden residence to fit in the lot sandwiched by the Hinatamigawa River and a park.
The land on the lot is always well hydrated due to the flow of plentiful subterranean water from the rear of the lot down towards the Hinatamigawa River. Considering the slope of the lot and other factors, it certainly wasn’t the best environment for a residence. To address this, we created a 2m-tall foundation with a concrete slab placed on top, which juts out of the slope in all four directions. On top of this, we planned for a building with a base of 23.6m by 4.6m. By creating enough distance from the slope, we were able to separate it from the wet earth and create a comfortable living space.