Transferring to UAL from Westminster?

Hi everyone. I’m doing a course in Interior Architecture at Westminster university, but I think it’s not really for me and I would rather do Interior Design because I want my course to be more creative and self directed instead of so technical like architecture.

I want to apply for second year in UAL. When is the best time to apply and who should I contact about it? Should I compare the content of the courses myself or ask someone else if it is even possible to transfer? Thank you in advance!