Up until now, urban landscape formation by ordinary architecture has not been studied thoroughly. Our purpose is to clear up the present conditions and the change of eras in exterior design. So we conducted a comprehensive survey of existing apartment buildings in a certain urban landscape. In the result, we notice that in the second half of the 1980's the exterior design of apartment buildings went into a big change: From low cost and simple design to high cost and decorative design. That was due to the influence of the increase of the economy on the design style. After that period, although the economy decreased, the same design style did not disappear. It is because present-day designers are skilled in getting the same design by using low cost methods.
