Crown Copperworks was erected at some point prior to 1797 by the Rose Copper Company of Birmingham. Sometime after 1886, copper-smelting ceased and the works were adapted for zinc smelting. In the 1920s patent fuel was manufactured on the site. The original water-supply pond survives on the western side of the Neath by-pass [SS 7295 9679] and water was conveyed over the Tennant Canal by an aqueduct.

Sources:
A Guide to the Industrial Archaeology of the Swansea Region, by Stephen Hughes and Paul Reynolds, AIA, 1989
Site entry by Stephen Hughes for Buildings of Glamorgan, John Newman, 1995

RCAHMW, 8 September 2011