It is important to share information between planner and citizen, between citizen and citizen when a machizukuri (community planning) project is going on. The aim of this paper is to report a new information sharing method called “Machizukuri Flag”. The flags, which express information that is collected by citizen’s workshop are hanged under an arcade roof of a shopping district every two month. Total 28 flags were hanged, and 15 sets of flag were published before today. Through the practice, the shopping mall was turned to an information space for machizkuri, and it increases new communication among citizens.
