Beijing's purchase restriction policy began at 20 1 1. After 0: 00 on February 1 day, a new purchase restriction policy needs to be implemented, and the qualification of buyers needs to be examined. As long as it is a house with property rights, it is an existing house of the family. In different families, if two or more individuals * * * own a set of housing property rights, then each of them has his own house. Beijing's purchase restriction policy is divided into: 1. Married families with Beijing hukou are restricted to two houses, and single families are restricted to one house. If affordable housing or two houses are registered in the family name, the purchase of housing within the administrative scope of Beijing will be suspended. 2. For non-Beijing hukou families who have already bought houses, they cannot apply for buying houses locally again. In addition, non-Beijing hukou families do not buy a house in Beijing, they need to pay social security for 60 months in a row in the local area, and they also need a valid residence certificate in this city to buy a house.