Bethlem Royal Hospital moved to its current site in the south-eastern suburbs of London in 1930. An oak-panelled Boardroom , deliberately designed to evoke the look and feel of Boardrooms on the Hospital's previous sites, was placed at the heart of its Administration Building. In contrast, the Chapel was built to reflect the contemporary Dutch design. The design of the Hospital as a whole followed the continental 'villa' system, one of only two in England to do so.

Bethlem Royal Hospital continues to provides local and national mental health services as an integral part of South London and Maudsley NHS Foundation Trust. In 2015 the Administration Building was repurposed as Bethlem Museum of the Mind and Bethlem Gallery.

Situated within the hospital grounds, in a stunning Art Deco building shared with the Bethlem Gallery, Bethlem Museum of the Mind was formally opened by artist Grayson Perry in March 2015. The museum cares for an internationally renowned collection of archives, art and historic objects, which together offer an unparalleled resource to support the history of mental healthcare and treatment. Bethlem Gallery supports artistic practice for wellbeing and showcases the talents of contemporary artists.