In order to build a new railway, some historic buildings had to be demolished. This happened throughout the route and in all cases detailed records were made of the buildings before demolition.
Sometimes these records took the form of laser scanning, as at Old Oak Common, but usually it involved detailed surveying and photography of both the interior and exterior of the building. This type of recording is another aspect of archaeological work.
At Tottenham Court Road and this part of Soho a number of buildings were demolished. Perhaps the best known of these was the Astoria music venue, which had previously operated as a cinema and theatre. It had been converted from part of the Crosse and Blackwell warehouse building in 1926-7.