I want to take my hon. Friend to one particular issue. One of the big problems we have had is that the building regulations are set against a new type of homes—prefab homes made of wood or steel—which can be built throughout the year, which would accelerate the whole building programme and which are ecologically far better than brick-built houses. Yet people always tell me that they have to make all sorts of adjustments just to meet the building regulations. Will my hon. Friend undertake to look at that, because these homes would accelerate the whole process of house building and make it much more affordable too?