Renewing CPL
 

I have a JAR CPL that was issued back in 2011 but due to various work related circumstances all ratings, medicals etc have lapsed and it haven't been renewed. What's the process for reinstatement? I've tried to get some sense out of the CAA but failed. Is it as simple as renew Class 1 medical, renew SEP rating then fill in paperwork to apply for licence and pay the fee?

You will need to apply for a new EASA licence using SRG1104. Make sure you renew all ratings you want on the licence before you apply or it will cost extra to do it later. In the process you can also request a UK licence, that might not be a bad idea too Otherwise as you said Renew all and apply.