According to the website of the current occupants of 90 Harley St, it stands where the hospital that Florence Nightingale worked in 1864 and as a private dental surgery now, it is the oldest in the country – having opened in 1924.

Timothy is on first name terms with a dentist who used to be based at 90 Harley St, but who has since retired.  Timothy has been to his house many times: he is very well connected, you know.