The binding legal principles established are: (1) Under Section 85(1) of the Constitution, an applicant may act in multiple capacities simultaneously (own interest, group interest, public interest) where circumstances warrant, and standing is established if at least one capacity entitles the applicant to audience; (2) Changed circumstances, particularly commencement of previously denied activities, can establish urgency even where a matter was previously removed from the urgent roll - the question of urgency is not res judicata where fundamental factual changes occur; (3) In environmental matters, harm is irreparable where natural ecosystems cannot be restored to their pristine condition by human intervention, even if physical structures can be removed; (4) The balance of convenience in interim interdicts favours preventing environmental destruction over financial losses, as the former is irreparable while the latter is compensable through damages; (5) A litigant has sufficient locus standi to prevent actions that would undermine or render nugatory the relief sought in pending proceedings; (6) Constitutional rights under Chapter 4 including environmental rights (s73), administrative justice (s68), and fair hearing (s69) provide proper basis for approaching courts under s85(1).