Yes, it is possible to study in the UK with a gap of 4 years. Many universities in the UK welcome applications from mature students, which includes individuals who have taken a break from their education. The admissions process typically considers various factors, such as your previous academic qualifications, work experience, personal statement, and references. It can be beneficial to highlight any relevant experiences or skills gained during your gap years to strengthen your application. Additionally, some universities may require you to complete a foundation or access course to refresh your academic skills before starting your desired degree program.