The Open Space Theatre was created by Charles Marowitz and Thelma Holt in 1968.
[1] It began in a basement on Tottenham Court Road in London, then transferred to an art deco post office on the Euston Road in 1976.
Thelma attracted a team of volunteer architects and workers to build the theatre (including David Schofield).
Natasha Pyne played Ophelia in a Charles Marowitz's adaptation of Shakespeare's 'Hamlet' at the Open Space Theatre at Tottenham Court Road in July 1969.
[3] Jinnie Schiele's book (University of Hertfordshire Press, 2006) relates the history of the Open Space with that of Holt's later venue, the Roundhouse.