Parc Gwyllt Farm and Gelliau Farm were identified in 1880 as forming a site suitable for the purposes of building an asylum.

[1] The hospital, which was designed by Giles, Gough and Trollope using a compact arrow layout, opened as the Second Glamorgan County Lunatic Asylum in 1886.

[3] After the introduction of Care in the Community in the early 1980s, the hospital went into a period of decline and closed in 1996.

[2] The hospital was subsequently demolished and the site redeveloped as Parc Prison in 1997.

[3] The old clocktower from Park Hospital has been restored and remains visible to the public on the Parc Prison site.