Konradsberg

Konradsberg or Konradsbergs hospital is a former mental hospital located on the island of Kungsholmen in Stockholm, Sweden. It was one of Sweden's first psychiatric hospitals and was built between 1855 and 1871. The architect responsible for its design was Albert Törnqvist. The hospital building now houses the Stockholm Institute of Education, and from August 2009 to an unspecified date, it was used by the Stockholm's International Montessori School. The campus where the hospital is located is named Campus Konradsberg.

The construction of Konradsberg was prompted by a growing demand for improved conditions for psychiatric patients in Stockholm. The previous psychiatric hospital in Danviken was in poor condition, with dark and damp premises. Konradsberg was built on the beach, making it difficult to renovate. The building itself had a castle-like appearance and was nicknamed Dårarnas Slott (Lunatic Castle).

The hospital is situated in a park area and has an "H"-shaped layout with a one-way corridor system. The central part of the building features a clock and a roof lantern adorned with a cross. The first 101 patients were transferred to Konradsberg from Danvikens Hospital on November 29, 1861.

The surrounding park is home to many old trees. Until the 1980s, the area was fenced off and not accessible to the public. The name Konradsberg comes from Konrad Heijsman, who owned a plot of land in the area in the 1770s.