Drying Room, not listed, rebuilt c1863 on the footprint of the original building destroyed in the fire of 1862, is a long rectangular, double-height, single-storey building adjoining the central part of the mill at its southern end. It is built of yellow stock brick with the upper level of timber louvres and a pitched slate roof. The building is divided into three large bays by brick cross walls rising above the pitch of the roof. The southern bay has been altered by the insertion of windows to light a later mezzanine floor. The central core of the building has seen continuous alteration into the late C20, so that the original stages of the paper making process within this building are no longer legible