Serious Note: Get onto a credit agency (Experian) and let them know you have bought the place or you will find yourself being "Blacklisted" from many credit companies, banks etc. That address will be a problem unless Experian has it down on their records that it has changed hands. Better yet get your solicitor to do it for you and don't put it off!
Make sure, whether you or your solicitor does it, that you get a letter back confirming they have noted it against the address or it will come back to haunt you.
I had similar problems at a previous address and it ain't funny.