William Street is a small, relatively quiet road in the uptown part of the Brisbane central business district. The street is historically significant to the city's early development as a penal colony. The first convict buildings were built along William Street in 1825. The street's northern end starts at the intersection of Queen Street and the Victoria Bridge. One of the most notable buildings on William Street is the Treasury Building which now houses the Conrad Treasury Casino. This building was built in three stages, with the William Street section being constructed first.