This miniature building is designed to be assembled. Each building covers an area of 15 square meters and is constructed by large-scale and industrial production with assembled and domestic wastewater treatment technology. The building has three standard modules; teahouse unit, living room unit, and bedroom unit. By combining the different units inside the miniature building, the architecture can be arranged according to local conditions and to fully meet people’s requirements of receiving guests, recreation and daily life. The arrangement of the furniture can be controlled by mobile phone.