HC Deb 17 December 2001 vol 377 c23W
Mr. MacKay

To ask the Secretary of State for Transport, Local Government and the Regions if he will make an assessment of the need for special consideration where water from a site drains to a flood plain in the context of the PPG25 Guidance. [23538]

Ms Keeble

PPG25 already indicates that applications of such a size or nature relative to the receiving watercourse/drainage system that there could be a significant increase in surface water run-off from the area are likely to require particular consideration of flood risk issues. This applies whether a development is within the flood plain or is outside it but drains into the flood plain.

PPG25 also advises that developers should carry out an assessment of the flood-risk and run-off implications of their proposals that is appropriate to the scale and nature of the development and the risks involved. In particular it advises that the run-off implications of development for all areas are controlled, where possible, through the use of sustainable drainage systems.