Lawyer: According to Article 214 of the Civil Law: "The establishment, alteration, transfer and extinction of the real right of real estate shall take effect when it is recorded in the real estate register." Therefore, there is no transfer of ownership if the house sales contract is signed and notarized and the property rights are not registered. Legally, it is still considered that the seller is the property owner of the house, and Mr. Zhu, as the buyer, only enjoys the creditor's right to the house, and the court still has the right to seal up the seller's house. But Mr. Zhu Can claimed compensation from the seller according to the contract.