Legal basis: Measures for the Administration of Commercial Housing Sales Article 34 A real estate development enterprise shall, within 60 days from the date of delivery of the commercial housing, submit the materials required for the registration of the ownership of the housing to the real estate administrative department where the housing is located. Usually, it takes about 20 to 60 days for the competent department to handle the initial registration. So two or three months after repossession, you can ask the developer about the initial registration, or you can go to the local real estate transaction information website to inquire. In order to ensure their own interests, we should stipulate the time limit for the developer to handle the initial registration, especially the time limit for the developer to handle the initial registration and the "timely notification obligation" after completion, and clarify the liability for compensation.