The aim of this paper is to clarify the permeability and continuity of street space through the practice of the Chiba Park Street Pedestrian Zone. First, the frontage configuration of roadside building are examined. Secondly, the installation of elements such as furniture are examined. Thirdly, activities by people staying at the time of road utilization are examined. By integrating them for each frontage, the permeability as combination with frontage, installation and activity are examined. Finally, through the sequence of them, the continuity of the street space are clarified before and after the practice.