Carreg Lwyd

1-15 Erskine Terrace is a terrace of 2-storey single-fronted houses built of rubble stone with slate roofs and mainly shared stone stacks. A pebble-dashed stack sits between Nos 1 and 3 and at the right end of No 15. Upper-storey windows have segmental stone heads and sit beneath gables.

No 1 stands on the corner of Chapel Street. It has brick steps leading to a half-glazed replacement panel door on the left and 2-pane horned sash windows on the right. Its left gable end is pebble-dashed and contains a 2-pane horned sash window in the upper storey.

Nos 3–13 are arranged in reflected pairs with entrances on their inner sides. No 3 has a replacement half-glazed door, a ground-floor 12-pane hornless sash window, and a 1st-floor 9-pane hornless sash window. No 5 has a replacement door, a 2-pane horned sash window on the ground floor, and a replacement top-hung casement above. The terrace steps up between Nos 5 and 7. Nos 7 and 9 both have replacement doors and replacement top-hung casement windows. Nos 11 and 13 both have replacement doors, 2-pane sash windows on the ground floor, and replacement 1st-floor top-hung casements.

No 15 is slightly higher than the rest of the terrace but shares the same roof pitch. It has a boarded door on the left and 12-pane and 9-pane hornless sash windows. Its right gable end is pebble-dashed; an earlier attached building has been removed from this location.

No 1 has a rear wing with 2-pane sashes in each storey facing Chapel Street. Nos 3–13 have replacement windows and 1960s paired 2-storey flat-roof extensions with eaves lines higher than the main range.