Why is the second-hand house in Pingshan, Shenzhen so cheap?

There are many reasons why the house in Pingshan is cheap. First, it is far from the center of Shenzhen, and it is all on the edge of Shenzhen. Second, the living facilities there have not kept up, and there are many houses around. Third, government policies are convenient, and many policies will give priority to urban areas; Fourth, large companies and enterprises rarely set up offices or offices there, which can not attract high-income people to go there.