From the CAA website:
Alternative means of compliance
If you hold the same rating on a current, valid, ICAO-compliant licence from another licensing authority and the rating has not yet expired, you can apply directly to take a Proficiency Check at an ATO to have your rating renewed, without having to take an assessment first.
Your validating medical certificate for the licence onto which the rating is issued must also be current and valid.
Please note you can only hold EASA licences through one member state, and that should be the state which holds your medical records. [the strike through is mine, this whole line is now redundant]
As you are the holder of a UK CAA pilot licence you may make a 'medical declaration online now from wherever you currently are in the world. With the Licence Proficiency Check passed and the medical. declaration completed online you may fly immediately whilst you await the renewed PPL licence certificate in the post.
n.b. as you will wish to rent from a UK club when your in the UK it may be best to undertake the LPC and familiarisation training at the same club so that the club knows you and are confident with the process.
Last edited by Fl1ingfrog; 19th Jun 2022 at 16:09.