The surviving portion of the warehouse at No. 23 George Street North is of State Significance for its technological advances in reinforced concrete construction and as a designed element within a planned townscape. The structure is potentially of national value for these same aspects of significance however there is currently not enough published material or research on the use of early reinforced concrete in Australia to confirm this.
The warehouse is one of the earliest buildings to have been constructed of reinforced concrete where the concrete frame is exposed externally and internally and predates the introduction of building regulations in Sydney to permit this type of construction.