This is the house for a single family, which is close to a heavy traffic road. ‘L’ shaped plan and white wall make a private garden and they keep the privacy from people’s eye outside.It has only one-story but we can feel changeful spaces, such as high-ceiling living room, study room like a hide-out, and loft which can view the whole house. Thermal storage system in the slab concrete and high temperature insulation system are effective for internal thermal environment.