To extend your student visa you first need to have been granted a CAS by the university. Please first check our webpages as to whether you will be eligible for a new CAS to extend your student visa, as there are a number of factors that we must take into account.
Once a CAS has been granted, you need to make an application to apply for a visa extension on the Home Office webpage. You need to make this application before your current student visa expires. If you have any questions during the application process, please create an enquiry and we can support you further.