Question to the Ministry of Housing, Communities and Local Government:

To ask the Secretary of State for Housing, Communities and Local Government, what steps his Department is taking to monitor the implementation of (a) the national standards for sustainable drainage systems and (b) updated planning policy, including what data it will collect on (i) compliance and (ii) adoption and maintenance arrangements.

The government is committed to securing the delivery of high-quality sustainable drainage systems to help manage flood risk and adapt to the effects of climate change.

The National Planning Policy Framework (NPPF) makes clear that developments of all sizes are expected to make use of sustainable drainage techniques where the development could have drainage impacts. National Planning Guidance indicates that local planning authorities should be satisfied that all Sustainable Drainage Systems (SuDS) have clear maintenance and adoption arrangements in place for the lifetime of a development.

We are currently consulting on a new NPPF that includes clearer, more ‘rules-based’ policies for decision-making. The consultation includes a proposed new requirement for SuDS to be designed in accordance with the National Standards for SuDS published last year. It will remain open for responses until 10 March 2026 and can be found on gov.uk here.

Responsibility for the implementation of national planning policy lies with local planning authorities, as does the monitoring of compliance with planning permissions.

We are also exploring how to improve the adoption of public amenities, including SuDS, on freehold estates. For further details, I refer the hon. Member to the Written Ministerial Statement made on 18 December 2025 (HCWS1210).