The Planning (General Development Procedure) Order (Northern Ireland) 2015

6.  The Department for Agriculture and Rural Development where a development proposal—

(a) is likely to impact upon drainage and/or flood defence provisions;

(b) is—

(i) on a riverine or coastal flood plain, or

(ii) beyond flood plains on land with a known history of flooding;

(c) may affect a flood bank or other flood control structure;

(d) is likely to involve the alteration or diversion of a watercourse;

(e) is of a size or nature that could significantly increase surface runoff; or

(f) is where a reserved matters application which was made subject to an outline planning condition or informative applied following the consideration of a previous consultation response from the Department of Agriculture and Rural Development.