Does having a diploma and 5 years of work experience as an interior designer help in the application process in UK for a Master's?

Yes, your diploma and five years of interior design experience will greatly strengthen your application for a UK Master's in Interior Design. UK universities highly value relevant work experience, especially if your degree background differs. To support your application, prepare a strong portfolio of your projects and be ready to meet English language requirements. Your professional background is a strong asset in the admission process.