> The UK is small and ancient. We literally don't have the land necessary for building big houses in cities. British cities like London would have plenty more

> The UK is small and ancient. We literally don't have the land necessary for building big houses in cities. British cities like London would have plenty more space if they built up, even slightly. Comparable European cities have 4-8 story apartment buildings in the inner city; London quickly becomes single houses. > There wasn't much land to start with, and changing the use of land that's had buildings on it for 1000 years is incredibly hard. Most of London is much, much younger than that. London expanded in the late 19th century, as railways and metro lines were built.