They relocated to Sydney, Australia to work with Don Gazzard on the new TAA Terminal at Mascot Airport.
John then worked with McConnel, Smith & Johnson Architects (MSJ); and renowned Lawrence Nield, specialising in hospital design and health planning. This experience led to a project for a 1400 Bed Teaching Hospital in Hong Kong (1977) with Stephenson and Turner.
In 1979 John was asked to relocate to Cairns, Australia to work as the Project Architect for the redevelopment of the Calvary Hospital (now Cairns Private).
Following the completion of the project, John set up his own Architectural Practice in Cairns.
John CR Evans + Associates became an international and national award-winning Architectural Practice which specialised in governmental, commercial, and environment design buildings, remote health and housing.
John designed the Headquarters of The Centre for International Forestry Research (CIFOR) in Indonesia.