 Government buildings like GPO, State Library, Supreme Court, and Customs House occupied various blocks with Parliament House and the railway stations on the edges.Residential uses, most notably the slums of Little Lonsdale Street, were largely replaced by commercial uses by the 1950s, with residential not making a return until the 1990s with the conversion of older buildings.Since the 2000s this has accelerated with numerous high rise apartment buildings and student housing projects.