Local government analysis: The High Court granted an application for judicial review brought on behalf of Z, a putative 17-year old unaccompanied asylum seeking child from Afghanistan, on the grounds that: 1) there had been an unlawful and irrational failure, refusal or undue delay to undertake a reassessment of C’s age given new evidence; and 2) the London Borough of Hounslow’s (‘Council’) failure to provide Z with age-appropriate accommodation and mental health support was unlawful. In agreement with the application, the court also granted an anonymity order, reliance on witness statements, appointment of a named litigation friend, expeditious proceedings and an interim order granting Z putative child status until the conclusion of the proceedings, thus, securing Z accommodation, care and support pursuant to section 20 of the Children Act 1989. This case provides specific guidance to practitioners whose clients are experiencing similar circumstances and a helpful reminder of the law concerning the test for granting permission and interim injunctions. Written by Nicola Wheater, associate at HCR Law.