England Sticks With Planning Over Drainage Law

A February 2026 briefing confirms Schedule 3 remains dormant, with ministers still favoring planning policy over statutory bodies.

8 Feb 2026

England will keep relying on planning policy rather than statutory oversight to deliver sustainable drainage, a House of Commons Library briefing confirmed in February. Schedule 3 of the Flood and Water Management Act 2010, which would create approving bodies with legal authority over drainage design, remains uncommenced sixteen years after it was written into law.

The Independent Water Commission, chaired by Sir Jon Cunliffe, had urged the opposite path. Its July 2025 report called for mandatory drainage standards through Schedule 3's commencement. An amendment attempting that during the Planning and Infrastructure Bill's passage met government resistance and was withdrawn, leaving Wales as the only nation in the union with a statutory approving body regime.

Non statutory National Standards for Sustainable Drainage Systems, introduced by the Department for Environment, Food and Rural Affairs last June, fill part of the gap. They carry weight through planning policy rather than direct legal force. A revised National Planning Policy Framework, open for consultation until 10 March, would require major developments to follow those standards and would discourage watercourse enclosure.

Officials have signalled a preference for reinforcing the planning route and tightening how drainage systems get adopted and maintained. Ministers are still weighing Cunliffe's recommendation against the cost of building a new statutory structure across every planning authority in England. No final decision has been made.

The distinction is not academic for developers and design consultants. Planning conditions can be negotiated down in ways a statutory body would not permit. Consistent delivery therefore still depends on how much capacity, and how much will, local authorities bring to enforcing drainage requirements at the application stage.