you want a CPL you do the CPL or ATPL exams
In itself that seems entirely reasonable. However the DGAC website says something along the lines of "you should contact an ATO which will determine what is required". In other words the ATO could (according to this) decide that you only need to do a subset of the exams, or (much more important imo) that you don't need to do the formal training. I don't mind doing exams, but I detest classroom training - just SOOOO boring. (Not needed in FAA land and indeed I never did any, just read loads of books).