designer's own words:We want to build a new environmentally-friendly town, were environment is considered as an important part of everyday life. We propose Spiral garden system: a public sustainable place like a green heart, easy to maintain and self-suffient, created by a joint population work that will cause a greater sociability among neighbours. Like a spiral, a light structure protected by a transparent and suggestive mesh, raises the city to create sustainable exchange places in different ways. This spiral contains an ascendant garden where native vegetation areas coexist with urban orchards shared and planted for the neighbours in a way to establishing a green outdoor walk and making easy the involvement of neighbourhood residents in their creation and maintenance, as well as increasing social relations between people, exchanging the natural products gowned and causing an environmental exchange. To sum up, we propose an ecological project in a way to give sustainable change to daily city lives, where humans and nature can coexist.