My Lords, I thank everyone who has been involved in this debate, and particularly the noble Lord, Lord McKenzie, for bringing up the finer points of my amendment, which I did not get on to myself. Important questions were answered there.
Clearly, I accept that my noble friend the Minister is absolutely right: this amendment is not appropriate to primary legislation and I shall not pursue it today. However, I feel some disappointment that we have managed to move off what I understood was agreed was part of a trajectory. We will judge that in years to come, because we are so aware of the huge task that the Government had with the Green Deal in trying to re-engineer past building stock, which never caught up to where it needed to be. The last thing that we want to do is to be in that position with the houses that are built over the next decade. We do not want to find that we have to go back and retrofit them in 20 or 25 years’ time. I recognise the Minister’s point that there would be a certain amount of inflexibility if we had this provision in the Bill. Therefore, I beg leave to withdraw the amendment.