UK Home Lighting Electrical Regulations Explained: Part P & BS 7671

Furniture in Fashion sets out how domestic lighting work is regulated in the UK, explaining the division between Part P of the Building Regulations, which places the legal safety duty on electrical work in dwellings in England and Wales, and BS 7671, the wiring standard that defines compliant practice. Our explainer draws the line households most often get wrong: replacing a fitting on an existing circuit is normally treated as replacement work, while adding a new circuit is notifiable and must be certified. We summarise the BS 7671 bathroom zoning system that determines the ingress protection rating a fitting must carry by its position relative to the bath or shower, and explain why certification matters at the point of sale rather than at the point of installation. Scotland and Northern Ireland operate under separate building regulations, and plug in lighting falls outside the scope of fixed installation rules entirely....