Green VoiD for unspecified purposes should be assigned. Almost any building is designed so that human beings can function efficiently for the purpose that the building was made for. This means the architecture of it is building-centered instead of human-centered. The concept of Green Void represents any place that humans can be the center of the space. The void is undefined space in terms of spatial program. In modern functionalist urban planning every site, every spot has a given specific meaning. Simultaneously industrialized and technologized urban is getting grayer and most of the city has been paved and covered by industrialized material, which is not any more what disfigures landscape but what has been pre-existing condition. What is called as landscape such as some trees, small lawn area surrounding buildings, and flower shelves have been added to buildings to intend to revitalize not merely buildings but also entire urban view, which actually is perceived visually. Sometimes it seems to just pretend to be "natural" which means that even though it exist, people even cannot be permeated into the nature, being just apart from it. The landscaping in urban area is only decorating the city to be shown "breathing", disguising its industrialized substance. Eventually city dwellers need potential space fabricated by themselves who are intelligent enough and self-convinced and drenched in the true nature differentiated from the fake one.