Can I return the key if I lose it when the property is handed over?

If the property loses its key when handing over the house, whether it can be returned depends mainly on the agreement in the purchase contract. Generally, if the house key is lost due to the fault of the property, the property is responsible for replacing a set of original anti-theft locks. If there is no agreement in the contract that the key can be returned because it is lost, then the property cannot be returned if it is handed over.