Lostwithiel Signal Box

Lostwithiel Signal Box is a two-storey structure built of brick with timber weather-boarding and a slate-clad roof. It follows a standard Type 5 design, featuring a shallow-pitched roof with barge-boards and spear-point finials at the gable ends. The first-floor operating room has continuous glazing on the north-west side, facing the tracks, with uPVC windows that mimic the original paired horizontal sliding sashes. This glazing pattern also extends to the gable ends. The entrance is located at the south-east end, within a projecting timber porch that has a gabled roof, and is accessed by a set of modern wooden steps. The ground-floor locking room is reached through a semi-sunken doorway in the same gable wall. The lower half of the north-west elevation features three original windows with segmental-arched brick heads, while the south-east elevation has three similar ground-floor windows and two additional windows on the first floor.

Inside, the signal box retains a lever frame with 63 levers, installed in 1923, along with block instruments and a modern control panel.