The events of the Grenfell Tower fire, which took place on 14 June 2017, are well-known. In the aftermath of this catastrophic incident, it emerged that the use of certain cladding materials at the Grenfell Tower, and other features of the building, had contributed to the spread of the fire. This, in turn, raised acute concerns regarding the adequacy of cladding materials and fire protection measures used on other buildings, in the UK and beyond. The Grenfell Tower fire urged several actions by the UK government—including the launch of a public inquiry into the events of 14 June 2017 (the Grenfell Tower Inquiry), and the implementation of changes to the legal and regulatory frameworks governing building and fire safety. For information on these developments, see Practice Note: Fire safety developments following the Grenfell Tower fire. The potential extent of fire safety defects in existing structures in the UK has prompted those that own, reside in, or are responsible for maintaining, potentially defective buildings, to consider whether remedial works are necessary, who must pay for them,