It will take about a day to cancel the first-hand house. However, some materials are needed, such as the original registered commercial housing sales contract, the Application Form for Cancellation of Commercial Housing Sales Contract signed and confirmed by both buyers and sellers, the Agreement on Cancellation or Termination of Commercial Housing Sales Contract, the proof of purchase payment issued by the special bank or real estate development enterprise for the supervision of pre-sale funds of commercial housing, and the letter of commitment from both buyers and sellers on the authenticity of the submitted materials. Please consult the Housing Authority for specific time and materials.

The purpose of real estate registration is to standardize housing lease registration, improve work efficiency and ensure work quality. The main contents of the work are application, review, reexamination, delivery, quality supervision and post-filing. The purpose of registration is to standardize the registration of house lease, improve work efficiency and ensure work quality.

According to relevant laws and regulations, the authenticity, completeness and standardization of the application materials shall be reviewed. To meet the housing registration of rental housing, the original should be returned to the applicant, and in the "housing rental registration acceptance form" signed the relevant materials for confirmation, sent to the street rental housing management service tax audit. For rental houses that do not meet the registration, the relevant materials should be returned to the applicant and the reasons should be patiently explained.