I congratulate the Minister on keeping a straight face while introducing his proposals for the Government to introduce zero-carbon homes. He knows that the proposals go away from zero-carbon homes, systematically and determinedly, and do not move us towards them, as had originally been intended under the code for zero-carbon homes, and the time scales and levels it proposed. As we have heard, we are moving
away from code level 6 and down to code level 5. As the Minister says, code level 4 is regarded as the starting point for alleged zero-carbon homes, but there are exceptions within that relating to affordable solutions and the small site exemptions where fewer than 10 units are being built, which will affect about 20% of new builds. That is nothing like having zero-carbon homes for the future. The amendments try to put this at least some way back on track, and I urge hon. Members to examine them carefully and support them if they value zero-carbon homes for the future, as I am sure we all do, in making sure that our building stock is of the best quality we can get for future sustainability.