Holiday camps such as those established by Billy Butlin were popular in the UK from the 1940s through to the 1970s. However, the advent of cheaper foreign travel meant that their appeal started to decline and many closed in the 1980s and 1990s. The adoption of an abandoned holiday camp as a recovery centre is a novel fictional appropriation.
This square may well have been inspired by Kazuo Ishiguro’s time at the University of East Anglia, where he took an MA in Creative Writing. At the centre of the campus is a concrete square which functions as a social space in a similar way to this square at the recovery centre.