Like Something out of a Nursery Rhyme

Look at how thin this house is! Wandering around Knightsbridge a few weeks ago, I came across this peculiar little... House? Cottage? Postbox? Who do you think would live in a place like this? 

I imagine a little old man who takes comfort in small surroundings after perhaps a lifetime of working in tunnels? Maybe a distant relation of the Little old Lady who Lived in a Shoe? Or the Crooked Man who lived in the Crooked House?