A Kensington and Chelsea Council spokesman said: “The reality is that we have to have representatives at the Public Inquiry in order for it to function. More importantly, we have to make millions of documents available for the Inquiry and the police investigation for both to establish a conclusive view and deliver the truth. This takes time, it takes resources and it costs money.

“This is one of the most in-depth inquiries and investigations in recent times. Our costs cover IT software for capturing documents, a significant amount of administration activity, and providing thousands of documents and information for the Inquiry and the ongoing police investigation. We are committed to being as transparent and helpful to the inquiry as we possibly can be.”