Although that can not only form a regular house like the house surrealistic, but also projects the rough landscape without changing it. It was completed in 2008 on a very steep slope almost without support. That is possible because the steel frame that connects to the ground on one side. Interior and exterior are made of wood. TNA architects mostly Japanese companies create a non-standard architectural project. Home on weekends Karuizawa is one of them. Like other TNA project was the lack of furniture in it that makes minimalist but very comfortable because the interior of natural wood.