Street is an ideal building block for constructing a circular city of the future. Infrastructures are intensively clustered in streets to provide essential urban services like several types of traffics (vehicular, bicycle & pedestrian) and waste(water) & rainfall discharge. Moreover, street level is more attractive, than the household level, for implementing renewable energy production & storage as well as reuse of nutrient from waste in urban farming, due to its larger supply and demand. Streets also catalyse the social interactions within the neighborhood. The path towards a sustainable city should, therefore, start at a sustainable street, which we called “Green Street”.