This amazing Tree Graden House designed by Hironaka Ogawa & Associates is an extension project on a thirty-five year-old house. The new part of buildings could be built only on place where two trees (Azelkova tree nad Campor tree) were grown, so removing them was one of the design requirements.
These trees looked over the family for thirty-five years. Therefore, utilizing these trees and creating a new place for the client became the main theme for the design. The two trees were cut with their branches. Then the water content was reduced by smoking and drying trees for two weeks. Thereafter, the trees were placed, where they used to stand and were used as main structural columns in the center of the living room, dining room, and kitchen.