RE: Should the UK government spend more money Insulating Poor People's Houses?

I would not be surprised if the housebuilding lobby persuade the government not to raise standards on house insulation to maximise their profits. They probably couldn't raise the price much to compensate, but the owners would make the money back over the years anyway. So much of our housing stock is ancient and so is really inefficient.

I found some stats that show domestic energy use is decreasing. That may be due to upgrading of housing stock and more efficient appliances. It's still a fair chunk of the national total. We need to be improving matters wherever possible, but vested interests may think differently.