aA are working on the 3 residential towers fronting onto Front IIRC
HPA are doing the office tower and Adamson are the executive architects. There's another architect for the north residential towers and a final one for the retail component.
Edit : and CCA as landscape
Wallman is handling the mid-rise elements on Wellington. BDP is handling the retail.Wait - just to clarify - CCA and HPA are involved in 400 Front now?