The study aims to clarify spatial cognition of "front" and "back" of urban space and its relation with the urban structures actually formed. Examining downtown areas of the major cities in Kyushu including Saga city, the study shows that the frontsideness and backsideness are represented by specific urban facilities and mutually contrasting images and by the location in relation to the nearby railway station or primary street. Further, It also indicates that the recognized spaces of the front and back are highly correlated with the urban patterns such as land use and street networks and with the city planning practiced.