After buying a commercial house, you may have the idea of checking out for various reasons. However, after the contract is signed, neither party can ask for non-performance or termination at will. Then, under what circumstances can I check out? First of all, if the buyer and seller reach a check-out agreement through peaceful negotiation, they can of course check out. However, in reality, this situation is relatively rare. In the absence of an agreement, according to the law, you can request to return the house in the following circumstances: First, the developer does not have the qualification of pre-sale permit for commercial housing; Second, the quality of the main structure of the house delivered by the developer is unqualified or the quality of the house seriously affects the normal use of the house; Third, the interior construction area or construction area delivered by the developer is inconsistent with the area agreed in the commercial housing sales contract, and the absolute value of the area error ratio exceeds 3%; Fourth, change the planning and design without authorization, affecting the structural form, apartment type, space size and orientation of the house; Fifth, the delivery of the house is delayed or the buyer delays the payment of the house purchase price and fails to perform it within a reasonable period of three months after being urged; Sixth, it is impossible to register the ownership of the house because of the developer; Seventh, it is impossible to apply for a loan; Eighth, other circumstances stipulated in the contract.