It was the rapidity of what happened to the house next door that took us by surprise. We knew it was empty. Grass was steadily taking over its mossy Japanese garden; the upstairs curtains never moved. But one day a notice went up, a hydraulic excavator tore the house down, and by the end of next year it will be a block of 16 apartments instead.

Abruptly, we are living next door to a Tokyo building site. It is not fun. They work six days a week. Were this London, Paris or San Francisco, there would be howls of resident rage — petitions, dire warnings about loss of neighbourhood character, and possibly a lawsuit or two. Local elections have been lost for less.

Yet in our neighbourhood, there was not a murmur, and a conversation with Takahiko Noguchi, head of the planning section in Minato ward, explains why. “There is no legal restraint on demolishing a building,” he says. “People have the right to use their land so basically neighbouring people have no right to stop development.”