Entrance building to Butterley Company Works and attached steps, bollards and pillar

The entrance building to the Butterley Company Works, along with its attached steps, bollards, and pillar, dates from the early 19th century and has undergone minor later alterations. It is constructed of ashlar sandstone and features a hipped octagonal pitched felt roof with a central octagonal stone stack and a projecting eaves course. The building has a single bay and an octagonal plan, standing two storeys tall but built into the hill, making the first floor accessible at street level.

On the south elevation, which faces the works, there is a 20th-century door with a plain lintel to the left of an angled wall, a central fixed pane window with a plain lintel and projecting sill, and a three-light side sliding sash window to the right on an angled wall, all beneath a large concave stone hood with drip-moulds at the top. Above, there is a similar window to the one below.

The right return features stone steps leading up to the street, flanked by a crested cast iron pillar in the balustrade and two thin cast iron bollards with rounded heads at the top step. The street elevation includes two casement windows and a door on the angled wall to the east. The Butterley Works were established by Benjamin Outram around 1790 to take advantage of the local coal reserves.