Larchfield Young Offenders Institute is a prison for underage offenders. In 2008, David Platt was sentenced to four months in the Institute for criminal damage, after going on a rampage along the street with a small pole, as well as assaulting Ken Barlow. In the institute, David met Graeme Proctor who was imprisoned for arson.
Clayton Hibbs was sentenced to 15 years imprisonment for the murder of Kylie Platt, with Clayton remaining in the institute until January 2019 after which he was tranferred to Highfield Prison. Seb Franklin was also sent to the Institute for assaulting Jackson Hodge in 2017.