 The place is important in demonstrating the principal characteristics of a particular class of cultural places.The former Jack & Newell Building demonstrates the principal characteristics of a masonry warehouse associated with shipping and commission agency work, illustrated in particular by the survival of office partitioning on the upper floor, display space on the lower floor of the front section, and warehousing facilities in the rear single-storeyed section.The relationship between the double and single storeyed sections of the building remains clear, and adds to our understanding of the functioning of an early 20th century Queensland shipping agency business.