 New buildings were added to Södersjukhuset in the 1950s, and Södersjukhuset underwent major refurbishment between 2000 and 2003.With more than 4,000 employees, Södersjukhuset is the third largest employer in Stockholm.The hospital has an underground complex measuring 4,500 square meters (48,500 square feet) called DEMC (Disaster Emergency Center), which was completed and inaugurated on 25 November 1994.