Post Office is substantially intact since the alterations and additions made in 1915, and retains the features which make it culturally significant including architectural features such as the classical porch, Ionic columns and overall scale, form and style. Modifications and dates The original building was completed in 1879, comprising four rooms, office, kitchen and stable. The extension of the building to the street frontage, the erection of the classical portico and the addition of bathroom were requested and completed between 1889-1893. The upper storey was completed . In around 1976, the later additions to the ground-floor Post Office sorting and storage area along the western boundary, new letter boxes and motorcycle shed appear to have been constructed. Later alterations include the standard Australia Post fitout to the retail area of the mid-1990s. Heritage listing Casino Post Office is significant at a State level for its historical associations, aesthetic qualities and social meaning. Casino Post Office is historically significant because it has played a central role in the development of communication services in the town and the Upper Richmond River district. Casino Post Office also provides evidence of the changing nature of postal and telecommunications practices in NSW. Casino Post Office is aesthetically significant because it a rare composition of the Victorian Italianate and Georgian Revival styles of architecture, and makes an important aesthetic contribution to the civic precinct in Casino. Casino Post Office is also associated with the Colonial Architect's Office under Walter Liberty Vernon. Casino Post Office is also considered to be significant to the Casino community's sense of place. Casino Post Office was listed on the New South Wales State Heritage Register on 23 June 2000 having satisfied the following criteria. The place is important in demonstrating the course, or pattern, of cultural or natural history in New South Wales. Casino Post Office is historically significant because it has played a central role in the development of communication services in the town and the Upper Richmond River district. Casino Post Office also provides evidence of the changing nature of postal and telecommunications practices in NSW. The additions made to Casino Post Office to improve the accommodation facilities for the residing postmasters reflects the changing requirements and standards in working conditions in NSW. Casino Post Office is associated with the NSW Government Architect's office under Walter Liberty Vernon. The place is important in demonstrating aesthetic characteristics and/or a high