I spent my childhood in London, moving overseas after graduation - not financially motivated. With two kids now I often entertain ideas of moving back, primarily because it really is an amazing city and because of the opportunities my children would have.

Unfortunately, even with the handsome salaries senior devs earn I cannot see how I could possibly pay rent and support children.

So I often wonder where all this money is coming from? If a salary many multiples the average would not cover living costs, who is pushing up prices? Who is buying these houses?