Every GDPS student belongs to one of four houses: Diamond, Emerald, Ruby, or Sapphire. The house system is the primary architecture of student community life — the structure through which inter-house competitions are organised, school spirit is expressed, and students develop a sense of identity and loyalty that extends beyond their own grade or classroom.

House Captains and Vice-Captains are elected or selected from senior students, taking on real responsibilities for organising house events, representing their house in competitions, and acting as role models for younger students. The position is genuinely demanding — and that is precisely the point.