There used to be one in every big town, where the prozzies worked. I looked into getting a formal sign saying 'formerly Grope Cunt Lane' made up and doing some guerrila re-naming, but a cast iron one was about £200 so didn't.
Q. What is the name of a London courier company which after enjoying particularly good financial year took each and every one of their office workers (but not a single courier) to Las Vegas?
Urban myth. Jermyn Street, and the whole of St James's for that matter, were the property of Henry Jermyn, the 1st Earl of St Albans. Jermyn Street has been there since the 17th century.