The purpose of this study is to investigate relationship between estimation and color operation of cityscape elements by means of computer. Following methods of simulation are adopted; cornices and window frames of one color are added on each building in Sim.1, colors of walls are changed to one color at regular intervals in Sim.2, sign boards of one color are added in Sim.3, trees are added in Sim.4, and characteristic color combinations in actual streetscapes and pictures are applied to building facades. Sim.4 has high estimation. Effect of color operation with cityscape elements are influenced by color combination of facades.
