Very difficult to differentiate from image but seems to be more like the Jacky Dragon this link might help - http://reptilesofaustralia.com/lizards/agamids/cnobbi.htm#.XHtVibhxVPY Charles
I'm confident that this is a Jacky Dragon due to the strongly heterogeneous dorsal body scalation, whereas the Nobbi has fairly homogeneous dorsal scales. Also the natural range of the Nobbi doesn't include the South Coast of NSW.