Is it illegal to buy a new house at a premium?

Not illegal. In order to protect their own interests, prevent agents from deliberately selling houses at low prices, and encourage agents to actively sell houses, many developers generally stipulate the minimum total sales price of all houses in real estate, and will work out the minimum price of each suite source. Article 34 of People's Republic of China (PRC) City Real Estate Management Law stipulates that the state implements a real estate price evaluation system. Real estate price evaluation should follow the principles of justice, fairness and openness, based on the benchmark land price, the calibrated land price and the replacement price of various houses with reference to the local market price, and be carried out in accordance with the technical standards and evaluation procedures stipulated by the state. 《? Judicial interpretation on the trial of disputes over commercial housing sales contracts Article 1 The term "commercial housing sales contract" as mentioned in this interpretation refers to a contract in which a real estate development enterprise (hereinafter referred to as the seller) sells a house that has not yet been built or completed to the society, and the ownership of the house is transferred to the buyer, and the buyer pays the price.