How to modify the mobile phone number recorded by the Housing Authority?

To modify the mobile phone number filed by the Housing Authority, you can contact the Housing Authority or relevant departments for processing. The specific steps are as follows:

1. Find the local real estate management department or notary office, explain the situation and submit valid identification documents.

2. Provide the mobile phone number information that needs to be changed, and explain the reasons.

3. According to local regulations, it may be necessary to pay certain formalities fees or provide other relevant supporting documents.

4. Wait for the processing result. Generally speaking, it takes some time and procedures to change the mobile phone number of the house purchase contract, and the specific processing time may vary from region to region and department.

The above are the basic steps for the Housing Authority to record and modify the mobile phone number. The specific operation may vary by region and department. It is recommended to directly contact the relevant local departments for consultation.