This file focuses on the South Kensington site, which is due to be exchanged with the London County Councuil for the South Bank site. The material in this file is not really about the history of the National Theatre, but is rather quite technical material about negotiations surrounding the South Kensington site.
The file documents several applications from external parties interested in purchasing or leasing the site, for example for cultural centres, property development, etc. There is also material documenting legal and commercial aspects connected with the site, such as the 'loss of development value' and the "development charge' (ca. 1955).