To ask the Secretary of State for Housing, Communities and Local Government, what estimate he has made of the cost of remediation of social sector tower blocks with high-pressure laminate cladding and insulation combinations found to be unsafe by the independent expert advisory panel on building safety.

No estimate has been made, but my Department has asked local authorities and housing associations to provide data on the external walls systems of their high-rise residential buildings of 18 metres or above. This exercise is part of an ongoing programme to build a more complete picture of the variety of external wall systems in use. I have provided £4 million to support local authorities with this important exercise. I expect this to be complete by 31 March 2020.