You can't. Because a 4-year-old child can't open an account alone without the request of an adult, he can't buy a house in Shenyang and sign an account himself. Shenyang, formerly known as Shengjing and Fengtian, is a prefecture-level city, provincial capital, sub-provincial city, megacity and the core city of Shenyang metropolitan area under the jurisdiction of Liaoning Province.