It is estimated that there are between 6,220 and 8,890 mid-rise residential buildings in England that require remediation, partial remediation or mitigation, according to a report from the Department for Levelling Up, Housing & Communities (DLUHC).

The study found that the cost of remediating unsafe cladding in mid-rise buildings could reach in region of £5.3bn.

The average cost per building of external wall system remediation is estimated to be between £640,000 and £790,000.

The height of a building also impacts the likelihood that it will require remediation work, experts say.

Of the mid-rise residential buildings containing dwellings that require work, 55% are 11 – 13m buildings and 45% are 14 – 18m buildings.

Research shows that 14 – 18m buildings have a greater proportion of buildings that require work (15 – 19%) than the 11-13m building stock (7 – 8%).

There are similar numbers of 11 – 13m buildings and 14-18m buildings requiring work to alleviate life-safety fire risks, given the larger population of 11 – 13m buildings; 3,430 – 4,900 11-13m buildings and 2,790 – 3,980 14 – 18m buildings.