Spatial pattern of precincts of shrines and temples is analyzed to clarify their role as green open space in Tokyo. First, original polygon data is made based on digitalized ANSEI 3rd(1856) Map. Second, based on these data, area size, distribution and morphological characteristics of precincts are compared between Edo and the present Tokyo. Third, the possibility of present precincts as green open spaces was examined. The results show: (1) Temples maintain cluster-type distribution from Edo to the present Tokyo; (2) Both shrines and temples have higher green coverage ratios than average ratio of Tokyo 23 wards area; and (3) Although each size of shrines and temples is smaller than an ordinary park, scattered precincts make green open spaces closer for urban residents.
