<p>Local authorities and housing associations are conducting a data collection exercise as part of a programme to build a more complete picture of high-rise residential buildings and the variety of external wall systems in use. We will publish appropriate summary information from the data collection in our monthly Building Safety Programme data release when ready, which we expect to be in spring this year.</p><p>For buildings with unsafe ACM cladding, more buildings have come on site with remediation work within the last year than at any other time previously. Final figures for 2020 will be published on 21 January and we expect this to show that around 95 per cent of the buildings identified at the start of last year will have safety work completed or underway.</p>