Keyuan was built in 1850 and locates itself on Guan Cheng Street in Boxia District, Dongguan, which is a representative landscape architecture of Ling Nan style. Together with Shunde Qinghui Garden, Foshan Liang Garden and Yu Yam Ancestral Garden, it is as known as the four famous gardens in The Qing Dynasty in Guangdong, which are the treasures of Ling Nan gardens.