Firth Street Mills

Firth Street Mills is a spinning mill built between 1865 and 1866 for Benjamin Lockwood, with additions made in 1886 for Rueben Hurst. The complex includes an attached engine house, coal store, boiler house, and chimney, as well as added weaving sheds. The buildings are constructed from coursed rubble with ashlar dressings and have slate roofs. The mill building features double ridge hipped roofs with dentilated eaves, standing six storeys tall, four windows wide, and 21 windows long, all equipped with flush ashlar cills and lintels, along with 20th-century large pane casements.

The south front of the mill has a stair tower with a single window and a taking-in door on each floor, as well as taking-in doors on each floor of the easternmost bay. The engine house to the east has a hipped roof and dentilated eaves. The north front showcases a pair of tall round-headed windows with moulded ashlar surrounds and keystones. The coal store, also to the east, has a single blocked doorway with a flush ashlar shouldered lintel facing the canalside. The boiler house to the south is three storeys high, with an ashlar coped gable. Its south front features a blocked cart entrance, two blocked windows above, and two additional windows higher up.

The weaving sheds, located to the southwest of the mill, are single storey and have seven coped gables along the south wall, with a cart entry and plank doors beneath the sixth gable. An office block to the east was converted around 1960 from the former time office and cottage. To the east, the main gates are flanked by a pair of rusticated square gate piers with pyramidal caps and iron gates. The chimney stack to the east is a very tall hexagonal, tapering stone stack, featuring a decorated upper stage and a moulded cornice at the top.