There are three kinds of preemptions on purchasing houses according to our law: the preemption of the co-owner of a house, the preemption of the tenant and the preemption of the contract.

• 摘要当前我国司法实践中房屋先买权主要有三类，即房屋共有人的先买权、房屋承租人的先买权和约定的先买权。