Just heard –
“Tickets are being released for 6 more days of tours, Friday to Sunday 17-19 and 24-26 October. Tours are on the hour, 11am to 4pm. Please note places on tours are ONLY available by booking in advance at www.nationaltrust.org.uk/london. To register interest in visiting with a local community or educational group please contact london@nationaltrust.org.uk.”