England's Drinking Water Inspectorate has called for mandatory lead testing in homes being sold, following an FT investigation revealing millions could be unknowingly exposed to the toxic metal. The watchdog's intervention highlights a critical public health oversight, as aging plumbing infrastructure in older properties remains a primary source of contamination. This proposal aims to protect buyers from the severe health risks associated with lead, particularly for children, and would place new responsibilities on sellers and estate agents.

The move signals a potential shift in property law, prioritizing water safety alongside structural surveys. It underscores the growing concern over legacy pollutants in our homes and the need for greater transparency in the housing market to ensure safe living environments for all residents.