In order to clarify the potentiality of roof greenery revaluating from such construction forms as the higher multistoried ferroconcrete building and the lower residential house in urban area, the research was conducted by analyzing from aerial photographs and GIS data, in Fukuoka City, Kyushu. As the study areas, from 3 different type zones such as the central business and office zone, residential housing zone and the mixed zone, each 2 sample areas were selected at totally 6. Since the weight capacity is controlled by the law, the potentiality of roof greenery was revalued according to each construction type, and suitable greenery way within using grand-cover plants or shrubs were adopted them. The results are as follows: It was become apparent that every 3 type areas showed the similar potentiality of roof greenery around 30% of each total ground area. Furthermore, in case of the central business and office zone, since there were many multistoried ferroconcrete buildings, 44.1% of the roof greenery potentiality showed a possibility of using shrubs. Even in the zones and the residential housing zones, roofs of school and shopping buildings were considered to be able to allow using shrubs.