Statutory requirement to have regard to the development plan in planning application decisions When considering an application for planning permission or permission in principle, section 70(2) of the Town and Country Planning Act 1990 (TCPA 1990) states that the decision-maker must have regard to: • the provisions of the development plan, so far as material to the application • a post-examination draft neighbourhood development plan, so far as material to the application • from a date to be appointed, in England, any national development management policies, so far as material to the application • any considerations relating to the use of the Welsh language, so far as material to the application • any local finance considerations, so far as material to the application • any other material considerations If a decision-maker fails to take account of relevant considerations or has taken into account irrelevant considerations, the decision is at risk of being quashed. As was clarified by Lord Hoffmann in Tesco Stores v Secretary of State for the Environment, the question of