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Our surface water management plans should also be referred to during the formulation of a drainage strategy for a site.

Land drainage consents

Any feature on site that is not an Environment Agency designated ‘main river’ that is capable of conveying flow would be classified as an ‘ordinary watercourse’ (such as ditches, dykes and streams). Any works within the channel of any such feature would require our formal written consent.

If any part of a development or its associated drainage system involves works to an existing ordinary watercourse, please see our guidance on land drainage consent.