The appearance of concrete walls or concrete structures change with the distance between the viewpoint and the place where the concrete stands. Seventeen architectural concrete specimens of nine hundred mm square with a variety of surface finishing were psychologically measured at the standpoint where the change of appearance occurs. Lightness and chromaticness were measured at every distance. The finding is that the concrete with smooth surface does not give people change of impression with distance, whereas the concrete with textured surface does people change of impression with distance. At the distance of fifty meter from the specimen, concrete with the face soft, smooth, light and abundant is felt comfortable. And rating scales with roughsmooth, lightheavy and abundantpoor feeling are corre-lated with lightness
