I certainly agree with the hon. Lady about the importance of good design. In fact, some of the most important progress we have made as a country on energy efficiency has been through building regulations and standards for the quality of our homes and offices. The Government remain ambitious in that respect, and she will know how important that is. She will know that I obviously cannot at this stage clarify our intentions post-Brexit, because that is tied up in a series of wider issues, but I hope I can reassure her that we understand completely the importance of continued ambition in this area. We are very clear that there remains considerable scope for harnessing creativity and innovation in using design to improve standards, which will in turn reduce costs.