Yes, an RTB determination order is generally legally binding on the parties, subject to any right to appeal to an RTB Tribunal within the applicable time limit. If it is not appealed, or after the Tribunal process is complete, the parties are expected to comply with the order. If someone does not comply, the other party may seek enforcement through the Circuit Court. The RTB does not decide how enforcement will succeed, so consider getting advice from a solicitor about the order and the relevant deadlines.