What do I need to consider if I want to build next to/in a watercourse?

For broad advice, you should take a look at the general requirements for ‘land adjacent to a watercourse’ and ‘development sites’ sections of our IDB information leaflet:

IDB Information Leaflet

Drain Outfall Arrangement

Outfall Field Marker Posts

You should then click on the links below to download the consent form and guidance notes, before returning the consent form to the office:

Guidance Notes W1

Consent Form W1 2018