 The undercroft contains toilets in the northwest and southwest wings and was originally open play space in the central wing; however, in 2017 the southern portion of the space is enclosed for a tuck shop and music room.This level has a concrete floor with coved edges, rendered masonry walls with rounded corners, and flat rendered ceilings.The toilets largely retain their original layout; partition walls (some with high openings with wire grille infill panels); and flat-sheeted ceilings with batten cover strips.