This castellated structure, also known as the Gate House, was built across the brook and some have suggested that it housed the man responsible for controlling the flow of water by means of sluice gates, which have long since disappeared. These would have allowed the full flow of Siston brook to flow into the lake or to be directed along the leet into Echo Pond – from where it ran through a culvert and thence to the centre of the works.
Residue from the copper works was not wasted, but was used to make the blue-black blocks from which the house was built. (You can see some examples of these both inside the museum and used to form parts of its structure.)
Recent unsympathetic additions have rather spoilt the appearance of the building, which is in private hands (when visiting, please respect the resident’s privacy.)
