The Houses of Parliament may close for six years to undergo emergency restoration, which is expected to cost around £4bn. A senior parliamentary committee has recommended to MPs and peers that they should vacate the Palace of Westminster so that urgent repairs can be carried out to the building. The Grade I-listed site has dated electrics and wiring, as well as asbestos and frail stonework. The committee warned of an increasing risk of a “catastrophic event” taking place if these repairs were not made. MPs are expected to move into the headquarters for the nearby Department of Health, and the Lords to move to the QEII conference centre. The work is predicted to be carried out in 2023, and would take about six years, however, both the House of Commons and Lords still need to approve their relocation.