London. The financial district is often referred to simply as 'the city', so force of habit!
I had assumed that, but thought it best to ask :)
I was thinking San Francisco, that sounds about for the bay area too.
Haven't seen flats sell as quickly as they are now. Living a 3 minute walk from Liverpool Street station and the flat I wa renting sold by the second viewing. It was on the market for three days but things are cooling off.