Houses of Parliament, Parliament building in Cape Town, South Africa

Houses of Parliament is a complex of three connected buildings on Government Avenue: the 1884 original building, the 1910 Old Assembly building, and the 1983–1985 National Assembly building. The National Assembly wing has a tall portico with a triangular pediment on fluted white columns above a high base; the longer lower wing has rows of rectangular windows and a domed roof section at its far end.

The complex was completed in the late 19th century to serve as the seat of the legislature during different political eras of South Africa. Architectural additions and modifications continued over several decades to accommodate growing needs for chamber space and offices.

The name "Spes Bona" (Latin for "good hope") was the winning entry in the 1870s design competition for the original building. The former lower-house chamber became the Parliamentary Dining Room, run by South African Railways & Harbours; there, in 1960, Harold Macmillan gave his "Wind of Change" speech. Since 1994 the Old Assembly chamber has served as a committee room.

Tours run on weekdays and give access to selected areas, including chambers and exhibition rooms, with advance booking recommended for group visits. Security checks at the entrance may take some time, so arriving early helps avoid delays.

The foundation stone laid by Governor Henry Barkly on 12 May 1875 was later removed during Greaves's redesign and lost under rubble; its contents, coins and a parchment roll, were secretly recovered and sealed in a metal box in the foundations of the parliamentary library entrance.