If you’ve been listening to politicians recently, you’ll have heard a lot of promises to stop new developments in the countryside. We need to build, they say, in our cities. Which does make sense in a lot of ways, because that’s where the shops, schools and buses are. The problem comes when you try to work out exactly where those new homes are going to squeeze in. There is, however, another source of plots for building. Read more to find out why we shouldn't be afraid to build on small sites.