 Lennox Castle was sold in 1927, and for some time after that was used as a mental hospital, as well as a maternity hospital.The last patients left the hospital in 2002, and Lennox Castle remained empty until it was severely damaged by fire on 19 May 2008.Part of the former castle grounds is now the site of Celtic Football Club's training facility (Lennoxtown Training Centre), while other parts towards Lennoxtown have become a long-term residential development to be completed in several phases, known as "Campsie Village".