Can grandparents intervene in an existing parenting court case rather than start a new one?

Yes, in many situations it makes more sense for a grandparent to ask to intervene in an existing parenting case between the parents rather than starting an entirely separate application, particularly where the parents are already actively litigating parenting time or decision-making responsibility and the grandparent's contact is directly connected to the outcome. Intervening means asking the court for permission to become a party, or at least to be heard, within the case that's already underway, rather than duplicating the court's time and the family's resources with a second proceeding.

Whether a court allows this depends on the specific case: courts generally want to avoid unnecessary complexity and extra parties in an already difficult parenting dispute, so a grandparent asking to intervene needs to show why their participation in that specific case, rather than a separate application afterward, genuinely serves the child's interests. In some cases, it may be more practical to wait until the parents' case concludes and then bring a focused contact application, especially if the grandparent's own case doesn't turn on issues already before the court. A family lawyer can advise on which approach fits your specific situation and timing.