Ysgol Rhos Helyg

Ysgol Rhos Helyg is a modernist single-storey school building, constructed in the mid-20th century. It is built of brick with a flat roof concealed by a concrete cornice. The design incorporates a main block running northwest-southeast, which contains an assembly hall, kitchen, offices, and toilets. A central corridor runs through this block, and to the east is a classroom block with seven classrooms arranged diagonally to the main axis, creating a sawtooth pattern on the northeast elevation. The main elevations feature grids of tall metal-framed windows with pivoting lights.

The primary entrance is located along the long southwest elevation. A double-height tower punctuates the center of this elevation, with the assembly hall and a lower kitchen wing situated to its left. A wing housing offices and a toilet block sits to the right of the tower. The tower’s narrow front wall displays a lozenge-pattern brickwork design above a three-light window which illuminates the staff room. A shallow projection set back to the tower’s right includes small windows on both its front and side walls, leading to the main entrance, which is sheltered by a concrete canopy and has double half-glazed doors leading to an entrance lobby, with a further three-light window illuminating an office to the right. The wing containing the offices and toilet block projects further to the right and features a replaced window on the left side, followed by thirteen small pivoting lights arranged in a band below the cornice. The assembly hall, projecting forward from the left side of the southwest elevation, has seven windows illuminating the main hall and three windows with higher sills illuminating the stage. A concrete canopy supported by two posts extends from the left side wall, with replaced double half-glazed doors. The kitchen is further set back to the left and has three main windows accompanied by four smaller windows to its left.

The northwest and southeast end elevations each feature recessed doorways with double half-glazed doors accessing the central corridor, which is lower than the surrounding wings. The northwest elevation incorporates a kitchen doorway within an open brick porch, while the southeast elevation has small windows flanking the corridor doorway, located within the toilet block on the left and a small store room on the right. The northeast elevation consists of seven classrooms, each featuring four windows and short single-window return walls.

The interior is planned around the central corridor running the length of the building. Small open triangular spaces are positioned outside each classroom, intended as cloakrooms due to the angled classroom placement. The corridor is lit from above by round lantern lights with frosted glass. The classrooms are taller than the corridor and have replaced windows positioned above the level of the corridor roof. The assembly hall has serving hatches connecting to the kitchen. The stage features a foundation tablet embedded in its front and a disc frieze along the proscenium, which is supported by pilasters with horizontal fluting. The hall also has two concealed ceiling beams on wall shafts with similar fluting.