The House system is a traditional part of English schools in which the School is subdivided into "houses". At enrollment, each student is assigned to a particular house to which she or he will belong from then on. Each house has its own patron saint, colors, & symbols.

 This system promotes community & close friendships, as well as encouraging the older students to lead by example and the younger students to admire and learn from the upper schoolers. One headmaster of an English-style school - Brighton College Bangkok - David Tongue, writing in an editorial, described the team-spirit engendered by school houses this way: "This camaraderie and solidarity is second to none and the benefits of this vertical interaction, where the young look up to the elder and where the elder look out for and support the younger, are profound." Houses also engage in good-natured competition with one another in sports, debate, and other areas.

In each house an upper schooler is assigned the role of prefect; the prefect has some amount of authority, helps with organizational tasks, & acts as a leader in various capacities.