Lodge and Gatepiers at the Main Entrance to the North Wales Hospital

The Lodge and Gatepiers at the Main Entrance to the North Wales Hospital is a two-storey structure built from snecked grey-brown stone, featuring slate roofs and stone chimneys. The front elevation faces east and is gabled, showcasing a square bay and two windows on each floor. To the right, there is a bay with a hipped roof and three windows on each floor. The south elevation includes steps leading up to a Tudor-arched entrance, with a stair tower to the left that has windows on the ground floor and first floor. The north elevation has two gables, with the left one recessed; each gable contains two windows on the first floor, and there is a chimney to the left of the right gable. On the ground floor to the right, there is a gabled porch with a Tudor-arched entrance doorway, and to the left, a conservatory.

Flanking the entrance to the hospital and connected to the lodge on the right by a rubble wall are the entrance gatepiers. The larger inner piers are octagonal with bell-like capstones and are linked by low coped ashlar walls to the lower outer piers, which are square with chamfered corners and feature more elaborate bell-like capstones.