I was lucky enough to shoot the new GPT head office in Sydney for some industry media. The reception, communal and central staircase area is a sweeping void spanning three floors. All the connected meeting rooms have clear glass walls to allow light and the view to penetrate.
Other breakout spaces are completely open to give a feeling of complete transparency and no doubt to encourage collaboration between departments.
GPT staff are very laid back and have no issues with being models for photo shots, they are probably old hands at it by now.