Returning to UK - personal possessions

Hi, I used to live in Brussels till 2012 and have been resident back in the UK since 2015. I’m planning on moving my personal possessions - furniture, books, records, etc (which have been stored with a friend) back later this month. I’ll be driving a van over to pick it all up. My question: will there be any paperwork on the EU side of things to take care of? I’ll either be catching the ferry from Dunkirk/Calais or Eurotunnel. I’m aware that there are HMRC forms for UK customs that I’ll have to complete. Thanks!