The Oaza Shimoyamada was mostly reorganized into twenty-nine towns which were prefixed by the name 'Yamada' in 1931, and the rest became the Oaza Shimoyamada, Ukyo Ward.
大字下山田は昭和6年大部分が「山田」を冠称する29町に編成され、残余は右京区大字下山田となった。