Architecture, Building and Structure Design The Nature Gradation Private House by Yasuyuki Kitamura A private house for a young couple, located on the northern hill of Minoh City, within Osaka, Japan. Despite the fact that the area is fast developing and known for its rich natural environment, the houses have little to do with the local character. The project aims to highlight the relationship between humans and the nature, while acknowledging the natural qualities of the surroundings.