The main office of Johnstaff is conveniently located near Martin Place and is a significantly casual workplace. Rarely will you see people in jacket and tie with my day to day outfit normally being a long sleeve button up and chinos.
I've been to two of the offices Johnstaff has and they are all well presented and continuous throughout. The Sydney office is easily accessible by all public transport as it is in the CBD and the dress code is business casual. Plenty of employees are also based on site so it is a good sized space for the number of people that actually use the facility.