The government's proposed changes to national planning policy have prompted a debate about how many homes we should be building.
Despite never having come close to the current target of 300,000 homes per year, the changes proposed by the government are likely to make it even harder to get planning permission for new homes. And is 300,000 the right target in the first place, or should it be some other, perhaps higher, number?
In his latest column for Housing Today our managing director, Paul Smith, dives into the numbers to try to make sense of it all.