[joncrocks]

People in `the City`/Square Mile would say that the center of London is the City of London, the historical center of London. In general Charing Cross (in my view) is more of a 'Geographical Center', as London has slowly expanded over time. It's kind of the middle of Zone 1 -https://en.wikipedia.org/wiki/London_fare_zones

I think it's down to how one interprets the question. Some might see the question as: "Where did London start/expand out from" and other "If I were to look at London now, where is the center of where you would consider London".

[OJFord]

I agree with you, it was GP's.. I think disagreement that I was trying to understand - I've edited the quote in to my comment to hopefully make that clearer.

[simonh]

I meant the square mile, yes.