Hwa Chong Institution Boarding School consists of 7 six-storey Halls of Residence (Halls A-G). Each level of every hall consists of two clusters, where a Cluster Mentor acts as guardian to a group of up to 18 boarders. Each cluster has 3 four-bedded rooms and 3 two-bedded rooms. The creation of the clusters provides various levels of “community”, starting from communication between individual boarders, to groups of 18 boarders and their hall mates, and to the entire boarding community.

Every boarder has a personal bed, desk, chair, bookshelf, notice board and wardrobe.

Communal facilities within each cluster include:
- Lift access on every level
- Air-conditioned study room
- Shower and rest rooms
- Pantry with water dispenser, microwave, refrigerator, iron & ironing board.
- Television lounge

The circular block located next to the curved block offers a multi-purpose and dining hall. The V-shaped courtyard between the curved block and the straight block enclose a recreation area and a festive garden with a koi pond for boarders to gather and to have social functions. A small amphitheatre and BBQ pits are included in the garden, offering an open area for the boarders to organize activities.

The boarders share a variety of facilities like music room, computer room, common area wireless facility, fitness centre, tuition centre, hair grooming centre, launderette and a convenience store. All boarders may also make use of the recreational facilities within Hwa Chong Institution. These include an Olympic-sized swimming pool, gymnasium, running track, tennis, basketball, squash and badminton courts. Prior permission must be obtained for the use of all the above facilities.