Baroness Parminter (LD)

My Lords, I support all three amendments that the noble Baroness, Lady Hodgson of Abinger, has brought forward. But for brevity, I am going to address my remarks to only one of them. The Private Member’s Bill she referred to when talking about her Amendment 117 was brought to the House by a Liberal Democrat Member, Max Wilkinson. I particularly want to address the issue of rainwater harvesting. As the noble Baroness rightly said, there is an ecological issue already with us; there is insufficient water because of the changes in our weather patterns from climate change. But if the Government are not prepared to listen to those reasons, then surely from an economic point of view this amendment makes perfect sense. First, we are already facing housing developments not being built because of water shortages, and secondly, if the Government want to get the large number of new data centres introduced, they are going to need a heck of a lot more water. It has been estimated that the large data centres use the equivalent of 50,000 homes- worth of water a day. Unless we use every single means at our disposal to utilise water properly, we are not going to be able to build the homes or the data centres that we want, so we need to look at measures such as this right now. Some noble Lords might say that the public would not like the idea of using rainwater harvesting in their own homes. However, a recent survey by Public First asked 4,000 UK residents that question, and there was overwhelming support for the use of rainwater harvesting, both outside in people’s gardens and inside their homes for flushing the loo or using the washing machine—as the noble Baroness has said. It is not just the noble Baroness, me and others who are making the case for rainwater harvesting. In Jon Cunliffe’s recent independent review of the future of the water industry, he made a specific recommendation about the need for rainwater harvesting to be addressed urgently. During the repeat of the Statement on the Independent Water Commission in this House on 23 July, I asked the Minister—the noble Baroness, Lady Hayman of Ullock—whether the Government would not wait for the proposed water Bill to pick up Jon Cunliffe’s recommendation but rather look at opportunities like the Planning and Infrastructure Bill to bring forward changes to building regulations so that rainwater harvesting could be mandated on new homes. The Minister, somewhat surprisingly, immediately thought that this was a good idea—I do not often get such positive responses from the Front Bench opposite—and promised to take the matter forward and discuss it with the Minister for Water. I hope that, when the Minister responds to these amendments, she can show the House that those discussions have taken place, that the Government are taking the issue of rainwater harvesting seriously and that there will be a mandate to change building regulations.