Coordinates: 51°37′12″N 3°56′17″W / 51.620°N 3.938°W The Weaver building was a flour mill and corn storage building which formerly stood alongside the half-tide basin of the North Dock in Swansea, South Wales. It formed part of a complex of buildings owned by Weaver & Co. and was designed and built by the French engineer Francois Hennebique in 1897, being the first reinforced concrete building in Europe. The Weaver building survived World War II bombings in 1941, the general post-war clearance of other industrial buildings in the area and the filling in of the adjacent basin in the late 1960s, but was demolished in 1984 to make way for a new Sainsbury's superstore that now stands on the site. A column from the fifth floor of the original building was preserved by the Science Museum, with another piece going to Amberley Museum. Another fragment lies by the side of the river Tawe, where a plaque commemorates Hennebique and his achievement.