Relocating main residence from EU to UK and importing house contents

Hi I am moving back to the UK from Spain where I have been a resident. I am organising all my furniture coming back in a van and this is all personal possessions from the house. I have hired a van to do this and a family member has agreed to do all the driving. What do I need to do for him to be able to bring the van load into the UK? Also does he need to clear customs before getting on a ferry and so will need more than the usual amount of time?

Hi noegdip,
You can get relief from customs charges due on personal belongings and other goods.
When transferring your place of residence to Great Britain (England, Scotland and Wales) or Northern Ireland from outside the EU.
lease see below link for more information:
Transfer of residence to the UK
Thank you.