Yūkarigaoka is a planned community development on a 250 hectare site in the city of Sakura, Chiba Prefecture, Japan by developer Yamaman Co Ltd. Development began in 1971 with a total planned population of 30,000. As of April 2024, the population was 18,943, consisting of 8,100 households. While the name Yūkarigaoka translates literally as “eucalyptus hill”, Australian Eucalyptus trees do not occur in the area naturally.