The following text is from the original listed building designation:
TQ 53 NW SPELDHURST THE GREEN (east side), LANGTON GREEN 7/485 Forge approx 5m north of Forge House
GV II
Former forge, now converted to offices. Early/mid C19, converted circa 1980. Coursed blocks of sandstone ashlar, some brick at rear end; peg-tile roof.
Plan: Low building on a rough east west axis, its west end gable-end onto The Green, it faces south towards Forge House. It now has a 3-room plan. It is not known whether any of the internal crosswalls date from the C19.
Single storey.
Exterior: Irregular front has 3 windows and 3 doorways. All occupy original openings except that the right end window is blocking another original doorway. Windows and part-glazed doors are all C20. Roof is gable-ended and includes a couple of C20 skylights. Front (west) gable is stone ashlar with shaped kneelers and coping and it contains a ventilator slit with chamfered surround.
Interior: Plain carpentry detail.
This former forge is a well-built stone building which forms part of an attractive and varied group of building along the east side of The Green.
Listing NGR: TQ5435839288

English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.