That East Yorkshire house is very ugly on the outside though isn't it?
I live in a £1m flat in London, and wouldn't want to live in Yorkshire as I don't know anyone there, don't want to spend my life driving everywhere (I can walk to a huge range of supermarkets, wine bars, cafes, restaurants, cinemas, pubs and leisure centres), and I'm mostly on my own so don't need a huge house and garden or good schools.
Just to make the point. Londoners like London because it what they're used to. They like being able to access some of the best culture in the world and access to a huge array of amenities. But we don't have beautiful countryside and cheap housing at our finger tips. Not that I think London is better than anywhere else but to explain its different strokes for different folks and depends what youre used to, your expectations and where your connections are.
Its always so obvious when people just go on about the housing price difference for London properties. The house quoted in the OP was ugly and next to mainline rail.