Question

To ask the hon. Member for Blaenau Gwent and Rhymney, representing the House of Commons Commission, whether any new instances of reinforced autoclaved aerated concrete have been identified on the Parliamentary estate since 1 January 2025.

As part of continued surveys and monitoring, RAAC planks have been discovered in the floor structure of the Upper Committee Corridor North. This is in addition to the RAAC previously identified in this area. An assessment of the condition of these planks by structural engineers has been instructed, in line with best practice guidance from the Institution of Structural Engineers (IStructE), starting in July.