Imperial has many international students, and there is support available for the many different aspects of coming to study in London, such as finding accommodation and opening a bank account. Orientation workshops and events for new international students also help students to settle in.
You can contact the International Student Support team with any of your immigration questions or issues. They provide specialist immigration advice to prospective and current Imperial College London students, and the team has particular expertise in Tier 4 (general) student visas, Short-term Study visas and options to remain in the UK to work after study. You can find lots of helpful information on visas and immigration here.