Hiroshi Nakamura - NAP
The focus in designing this house was to make it an extension of gardening. The soil at the site consists of a uniformly soft material that covers the surrounding area. People living in this region have been making this soil into mounds kneading it and firing it into pottery for many centuries.
Looking at the soil and touching it with your hands brings about certain emotions. I wanted to give people the opportunity to have this precious experience while living in the home. The site is located between the ocean and mountains and has a view of yachts and other boats on the horizon the seashore cliffs with beautiful layers of earth and fields full of wildflowers.
The owner of the property lives in a high-rise condominium in Tokyo and wanted to be close with nature on the weekends spending time gardening. The requests of the family of three consisted of a large one-room home where the rich natural environment could be enjoyed a reinforced concrete structure capable of withstanding earthquakes and a wood deck terrace on the side facing the ocean.
This eliminated the necessity of using a roofing material enabling building costs to be reduced and minimizing impact on the environment. The concrete walls needed to be coated in order to prevent corrosion inherent in a site on the seacoast. The same soil that was used to cover the roof was mixed with diatomaceous earth (also known as diatomite) cement and resin and applied to the walls with a maximum thickness of 55mm.
The family that lives in the house helped scraping on the soil with wood trowels metal combs metal brooms and paddles. Since gravel seashells and other things were mixed in with the soil something appeared every time soil was dug up giving people enjoyment similar to that experienced on an archaeological dig.
As a result of this process that included different time frames when the plasterers and owners of the house performed work and different scrape marks they left various objects in the soil can be seen on the surface giving it the appearance of having varying layers of soil exposed from the earth.