Corbis News/ Getty Images Housing prices in China's border city Dandong have skyrocketed, particularly since Kim Jong Un visited Beijing in March. Prices and sale rates are booming, with local housing applications exceeding processing limits. Three-quarters of China's trade with North Korea used to flow through Dandong. Buyers may be hoping that sanctions will soon lift, and that Dandong may one day become wealthy like the Shenzhen economic zone near Hong Kong. Housing prices along China's border with North Korea have skyrocketed since Kim Jong Un visited Beijing in March. In the border city of Dandong, in the north east region of China, some prices have even doubled, according to state-run outlet Global Times.