The Halswell Residential College is a school for boys with learning difficulties, from years 7 to 10. Located on Mount Magdala land, the school had a roll of as of and is decile 2. After the 2011 Christchurch earthquake, Discovery 1 School and Unlimited Paenga Tawhiti (UPT) used the campus of this school. UPT moved to Ilam in 2013, whilst Discovery 1 remained at the Halswell Residential College, until the two schools, now merged as Ao Tawhiti, moved to a new site in the central city.
