The building with the wooden door was originally the office of the Era quarry with a flight of steps up to it from the yard. When the quarry closed, Trefor Jones opened a shop there, in 1948. The large building on the left was the Era quarry slate mill. After the war it was occupied by an engineering firm called Hawkins which made hospital equipment. Later on another engineering firm moved in, run by Mr Fred Evans from Llanwrin. In the 1990's, Jeremy Thomas was running a factory there making sofa beds.