Castorama is a French retailer of DIY and home improvement tools and supplies. It has its head office in Templemars.The company became a subsidiary of Kingfisher plc in 1998, along with Castorama's own subsidiary Brico Dépôt. Some outlets have been converted or relocated under the Brico Dépôt DIY warehouse format, based on the B&Q Warehouse fascia in the UK. Poland (about 50 stores) and Russia (20 stores), also have Castorama outlets.