The station was designed by Grimshaw Architects with Sir Alexander Gibb & Partners appointed consultant engineers.

Construction of the tunnel was delayed however, and the station did not open until November 1994, when it won the European Union Prize for Contemporary Architecture as well as the Royal Institute of British Architects' Building of the Year Award.

The platforms were all covered by a 400 m long[1] glass and steel vault of 36 arches forming a prismatic structure, conceived by Anthony Hunt Associates.

[8] Ownership of Waterloo International station passed from London & Continental Railways to BRB (Residuary) Limited, with no clear plans for the future use of the Eurostar platforms.

[9] Some reports had suggested that they might be used for shops,[10] but a parliamentary written answer of 4 June 2008 stated platform 20 was to be used by some South West Trains services from December 2008.

The show includes the use of a steam engine, coupled to one of the original carriages from the 1970 film being shunted in and out of the theatre area as required by a Class 08 shunter.