bleachhouse
/ˈbleɪtʃhaʊs/Definitions
1. noun
A house where bleaching or dyeing of cloth is done.
“The village was surrounded by a number of bleachhouses where local artisans worked.”
2. noun
A building where bleaching, particularly of wool or cloth, is carried out.
“The old bleachhouse on the outskirts of town was being converted into a museum.”