I'm very pleased this debate is being held this afternoon and I thank Plaid Cymru for moving it, and I think we do need to state that social housing is an essential component of the housing supply we need. It has frequently in our history led great innovation, it's liberated people and given them homes fit to live in, and it is time we restated the value of the principle of social housing. I also welcome the scale that is indicated by Plaid Cymru in terms of what we will need in the future, because it's very close to our own projections and what we've called for in the 2020s.

We are building at the lowest rate, really, since the 1920s. We are well below—[Interruption.] I will give way in a moment. We are well below, perhaps even just barely over half, the historical trend. We have only just over a quarter of the number of homes that we built in the great housing surges of the 1950s and 1960s, so we do need to talk about scale and building many, many more social homes and homes in general. I'll give way.