Cybi Building, Holyhead High School

The Cybi Building, part of Holyhead High School, is a large school complex dating from around 1880, planned and designed with clearly defined components, built in a mild Queen Anne style commonly favoured for school buildings of the period. The exterior is bright red brick with ashlar dressings, including banding, with render on the rear elevations. It has a slate roof with red tiled crestings and tall chimneys with ornate capping detail.

The main range is single-storied and comprises three distinct working areas arranged as two symmetrical blocks flanking a central section. The front elevation is articulated around the central block, which loosely comprises three gables representing the main areas inside, linked to the flanking blocks by short three-window ranges. A recessed central gable, offset to the right of a tower over the infants' entrance, features an ornate doorway with a transomed segmental overlight and a circular window beside it. The tower is octagonal, with stone broaches, but the original spire is now missing. The gable has a tripartite window in an ashlar frame, a circular window at the apex, and a ball finial at the segmentally arched gable apex. The left-hand gabled range has a segmentally arched window, while the right-hand gable has a simpler row of three windows.

The flanking blocks each comprise three gables corresponding to the three main areas within. The central gable is recessed and more elaborately decorated, dominated by a composite window in three sections, each with a segmentally arched head. Transoms continue as pilasters terminating in ball finials. The shaped gable also has a ball finial. The balanced flanking gables have a broad segmentally arched window with banded voussoirs and an entrance porch against their inner angle, featuring a shaped buttress and segmental pediment with raised lettering reading "Boys" to the left and "Girls" to the right. The right-hand gable is plainer, with three simple windows. At either end, a further recessed bay also contains three windows.

The rear elevation reflects the building's tripartite division, with three discrete blocks corresponding to the main areas of the front range. Each of these comprises two parallel ranges, roofed parallel to the main alignment of the building but at right angles to the gables which structure the front range.

The building’s architectural character is emphasised by the striking, asymmetrical gables, which give prominence to windows in the main elevations facing the yard. The building was deemed unsafe and therefore not fully inspected.