My Lords, I am grateful that we have the opportunity to discuss these amendments this evening. While my name is to both of them, I shall speak only to Amendment 119.
The Government have rightly launched a national flood resilience review, which is due to report in the summer, but that review will come too late if the Bill paves the way for 1 million new homes without due regard for their flood resilience. New homes increase flood risks for developments and for surrounding communities. Concreting over a catchment speeds up run-off, increasing the likelihood of flooding. After the 2007 floods, the flooding review by Sir Michael Pitt recommended sustainable drainage as a way forward, which moved the Government to bring forward the Flood and Water Management Act. It was suggested in the Act that there should be further use of SuDS, with soakaways such as swales, ponds and other natural means to ensure that sewer networks were not overwhelmed during periods of heavy rainfall. We all know that well-designed SuDS can contribute to water quality, to coping with overheating and to biodiversity. But this Government delayed implementation and then abandoned that approach altogether, in favour of an “expectation” that major planning applications would include SuDS.
This was not because of the costs. Defra recognised, in its own consultation document, that,
“sustainable drainage systems are generally cheaper to build; and maintaining them will be cheaper (or need be no more expensive), than the … cost … required”,
in conventional drainage. The result of this expectation that the SuDS approach would work is that last year Barratt Homes, the UK’s leading housebuilder, included no provision whatever for sustainable drainage in a third of its developments. The Committee on Climate Change has analysed 100 planning applications in areas of flood risks and found that fewer than 15% proposed SuDS. If the Government wish to challenge that evidence, what monitoring are they doing at a national level of the uptake of SuDS?
The National Policy for the Built Environment Committee of the House of Lords, on which I and other noble Lords sat, has looked at this issue. In its report last month, it argued that the Government
should take a more proactive approach to the provision of SuDS. In legislating to provide for new homes, we must seek to contain the time to plan for them—absolutely. But we need a process ensuring that new homes are built to a standard that will protect them from flood risks and not exacerbate risks for established communities. I shall not list the many organisations which have written to the Minister in support of this amendment, because we do not have time. I will merely beg to move and hope that other Members might pick up some of the points that I know need to be raised.