Helsby Junction Signal Box

Helsby Junction Signal Box is a railway signal box built in 1900 for the London and North Western Railway, designed in the Type 4 style from 1876. It underwent extensive renovations around 2003.

The structure features a brick base with a timber upper floor that has horizontal weatherboarding, and it is topped with a Welsh slate roof. The signal box is primarily single storey with a half basement, where the floor of the lower locking room is below the level of the surrounding station platform. At the south-western end, there is a small annex, a later addition that matches the original construction, which provides a staff toilet and a porch for the entrance to the operating room.

The upper operating room is slightly set back from the brick wall face of the locking room below. The locking room is illuminated by four segmentally arched windows on the front and back, along with a single window at the north-eastern end. Access to the operating room is via a short modern steel staircase that leads up into the porch from the south-eastern side. The glazing on this side features eleven 4-pane sash windows arranged in a pattern of 2-2-3-2-2, most of which are fixed, although some are horizontally sliding. The north-western side has a similar arrangement with ten sashes and a single central gap, while the north-eastern end is nearly fully glazed except for one sash-sized gap. The roof has a shallow gabled pitch, adorned with timber spiked finials set into plain bargeboards.

Inside, the signal box retains its original 45 lever London and North Western Railway Tumbler frame.