This series consists of two binders titled 'Building Executive Committee 1' from 15 September 1958 until 5 October 1961 when it was disbanded per Commission General Order CGO 2/1963 issued 1 February 1963 and a new committee called 'Capital Works and Services Committee' established.
The second binder is titled 'Building Executive Committee 1 (Reconstituted)', which incorporates the new committee and ran from 8 January 1963 to 7 January 1964 as well as the reconstituted 'Building Executive Committee' which ran from 28 May 1964 until 11 October 1967.
The system of control and arrangement is chronological by meeting number entry.