The solicitor we used sent us a check list similar to that shown below. I’ve added some extra bits but having their list to begin with was SO helpful! 🙂
List of persons to notify of your change of address
Long Distance Course Providers
Credit Card or Hire Purchase Companies
Companies of which you are a shareholder
Child Benefit Office
Service charge if applicable
Sky or Digital or similar supplier
SORN – DVLA doesn’t need an address for SORN purposes. However, make sure your registration certificate (V5C) is up to date to ensure you receive a reminder when your SORN is about to expire.
The list is not exhaustive but I hope it helps.