 In 1990, the society moved into its own space, in the basement of the Redstone Building on 16th Street near South Van Ness—a building which also housed the gay and lesbian theater company Theater Rhinoceros.The collections grew constantly, and by 1995 the Historical Society moved into a space on the fourth floor of 973 Market St.The society moved again in 2003 to a location on the third floor of a building at 657 Mission St. that also housed other cultural institutions