Planning and Infrastructure Bill

Lord Roborough Excerpts

Report stage
Wednesday 22nd October 2025 Lords Chamber

[Lord Roborough (Con)]

My Lords, I am very grateful to my noble friend Lady McIntosh of Pickering for her commitment to this flooding issue, which impacts far too many households in this country and which, as our climate changes, is likely to impact far more.

New housing built on flood plains since 2009 is not able to be reinsured under Flood Re, supposedly because that housing does not need it. However, as my noble friend points out, that is not the case. Her Amendment 70 requires greater flood resilience measures if we are not to rule out building on flood plains entirely. It seems eminently sensible to help protect homeowners and ensure that insurance is available at an affordable price, and so we support this amendment.

The noble Baroness, Lady Jones of Moulsecoomb, makes strong points in Amendments 86, 120, 121A and 121B, so ably introduced by the noble Baroness, Lady Bennett of Manor Castle. Clean drinking water in our country is a finite resource, and measures to improve efficiency, analyse demand and increase reuse are sensible. I will welcome any comments from the Minister that show what the Government are already doing and plan to do to address these matters. However, we would not be in support of adding this to our already overburdened planning process.

[The Parliamentary Under-Secretary of State, Ministry of Housing, Communities and Local Government (Baroness Taylor of Stevenage) (Lab)]

My Lords, I thank all noble Lords who have taken part in the debate.

I will first address Amendments 70 and 81, concerning flood risk and resilience within the planning system. They draw attention to the important matter of how we prepare for and mitigate the impacts of flooding, particularly in light of the growing challenges posed by climate change. The Government treat these concerns with the utmost seriousness. We are aware of the distress, disruption and financial cost that flooding brings—so ably illustrated by the noble Baroness, Lady Grender; of the heightened risks associated with a changing climate; and of the necessity to maintain a robust but proportionate framework for managing these risks.

Amendment 70 seeks to require property flood resilience measures in new homes located in areas of high flood risk. As has been made clear in previous debates, enhancing the resilience of properties exposed to flood risk is indeed an important objective, which I know we all share across the House. In support of this, building regulations already promote flood-resilient construction in flood-prone areas through approved document C, while ensuring that where properties do not require additional measures, they are not subject to undue burdens.

Amendment 81 seeks to impose a statutory ban on residential development in flood zone 3. While we agree with the principle of steering development away from areas at highest flood risk, this amendment would prohibit development even in major urban areas such as Hull and central London, which, although within flood zone 3, are protected by robust engineered flood defences. Such a blanket ban would prevent development coming forward that could otherwise be made safe for its lifetime and would not increase flood risk elsewhere. Instead, the National Planning Policy Framework already provides strong safeguards, directing development away from the most flood-prone areas, including flood plains, and makes it clear that inappropriate development in these areas should be avoided.

Our policy also ensures that new housing and most other development types are not permitted in functional flood plains—flood zone 3b—where water must flow or be stored during floods. Where development is allowed, it must be proven safe for its lifetime, with full consideration of the vulnerability of its users. The effectiveness of our current policy position is clear: in 2024-25, 96% of all planning decisions and 99% of all new homes proposed in planning applications complied with Environment Agency advice on flood risk, and these figures have remained stable over time.

Finally, I highlight that we are making a record £10.5 billion investment in flood and coastal erosion defences, the largest programme in history, including £300 million for natural flood management over a 10-year period and unlocking further investment from public, private and charitable sources.

Amendments 86, 120, 121A and 121B were tabled by the noble Baroness, Lady Jones. I am sorry that she is not in her place because it would have been my first opportunity to welcome her back to the Chamber. The amendments, ably introduced by the noble Baroness, Lady Bennett, concern sustainable water management and draw attention to the important need to reduce demand on water resources. The Government fully acknowledge the critical nature of sustainable water management and water efficiency.

To address that issue, in September the Government launched a consultation to review the water efficiency standards within the Building Regulations 2010. This will ensure increased water efficiency for new housing and tighter standards for water-stressed areas. The consultation includes a call for evidence on water reuse systems in new developments to enable even greater water efficiency. We are investigating how we can bring technologies such as rainwater harvesting into new developments safely. Reuse of grey water or rainwater should be subject to careful policy consideration, as any accidental, inadvertent or incompetent contamination of potable water could lead to a public health incident. In support of this, we are also examining how we might upskill those in the plumbing and construction sectors, ensuring that they can safely install such systems. Additionally, in December 2024, we updated our National Planning Policy Framework to expand the requirement for sustainable drainage systems to all developments that have drainage implications. These systems can incorporate rainwater harvesting, which not only aids water storage but helps regulate flow rates from sites.

In the light of this, I am concerned that the additional measures proposed through Amendment 86 would be duplicative and would remove the appropriateness of efficiency measures to be determined on a case-by-case basis. We must remain mindful of not imposing blanket requirements, as a one-size-fits-all mandate may not be suitable in all local contexts. This can instead risk unintended consequences, such as increased expenses for developers and home owners, and may slow down the housing delivery that we so desperately need.

On Amendment 120, planning authorities already consider water efficiency targets in applications and can set tighter optional water efficiency standards through the planning process. Water efficiency standards and guidance are determined through building regulations. Duplicating this, adding further monitoring and evaluation requirements, could impose administrative and financial burdens on local authorities.

On Amendment 121A, planning authorities must already consider water supply and quality through strategic environmental assessment, also informed by strategic flood risk assessments, while water efficiency standards are set and enforced through the building control process. We should not duplicate existing planning guidance and building control processes.

Regarding Amendment 121B, the Government support sustainable water management and water efficiency and are already giving consideration to how water reuse can reduce water scarcity and drainage and wastewater pressures on growth where they are needed—for example, through the current consultation on Building Regulations and the associated call for evidence on water reuse systems in new development. In addition to the requirement in the National Planning Policy Framework for all new development with drainage implications to incorporate sustainable drainage systems, planning policy also requires that strategic policies should make sufficient provision for water supply and wastewater.

The existing statutory requirement that local planning authorities engage with specific consultees such as the Environment Agency and sewerage and water undertakers when developing local plans is supported by our planning guidance, which encourages early engagement between strategic policy-making authorities and water and sewerage companies. Strategic and local planning authorities will need to consider these requirements when preparing their spatial development strategies and local plans. I therefore kindly ask noble Lords not to press their amendments.