The old street in Tamsui, Taipei, Taiwan has a history over 200 years and had gone through a major physical transformation due to urban development and tourism in recent years. The research is based on field works conducted in 1989 and 2010 focusing the use and changes of perception and meanings of the environment. Environment is seen as consisting of behavior settings in organized fashion that provides information for people to understand the social situation and elicit popper behavior rules based on shared interpretation of environmental cues which involve fixed, semi-fixed and non-fixed feature environmental elements. The old street in the new form supports twice as many of settings for activities as twenty-one years ago, but replaces the major role for community daily life with tourist consumer services. The shrinking of local community settings and replacement of setting natures in the midst of tourism indicate changes of socio-spatial relations in the old street environment. It has become more mobile in terms of social interaction but more limits and control of the public space. Norms and general consensus based on collective understanding of environmental cues through time in the old days no longer function as guidance for proper behavior. Instead numerous signs and law reinforcement by public administration become effective for behavior guidance making the street a constricted public realm. Saturated in delocalized tourist consumerism and fierce commercial competition the history of the old street is only a fabrication through interplay of the physical environment, commercial advertisement, and tourist behavior.