Can you tell why this house is called 'Britain's naughtiest house'?

The house, located on 4 Kinnell street, has been put on sale by the owner Chris Frear because the owner wants someone with more humour to live in the house dubbed 'Britain's rudest and naughtiest house. Can you guess why it's Britain's naughtiest house? Has something to do with the address.. Lol!