The Snake Fit Boxing Gym in Christchurch is the King Cobra gang pad.
Photo: Google
The raids were part of the investigation into three serious assaults in the central city on 21 March.
Police said the addresses targeted included the gang's "pad", known as the Snake Fit Boxing Gym, in the Middleton industrial area, which was advertised as a boxing/mixed martial arts gym open to the public.
Detective Senior Sergeant Colin Baillie said "the victims of these assaults, outside a Victoria Street bar, were innocent members of the public simply having a good night in town with friends
"One of the victims, a young father, suffered a serious brain injury and will likely have lifelong injuries due to the assault."