 It is representative of 1940s government child welfare philosophy and the architectural design practice of the Government Architect's Branch.Challoner Cottage is also of state historical significance for being a substantial institutional building built in part by its own children residents.If it is substantiated that it is constructed from materials produced on-site at the Mittagong Farm Home by the children themselves, Challoner Cottage provides physical evidence of the 20th century government policy of encouraging self sufficiency in its child state wards.