Bruce Castle is now a museum, holding the archives of the London Borough of Haringey, and housing a permanent exhibition on the past, present and future of Haringey and its predecessor boroughs, and temporary displays on the history of the area. Other exhibits include an exhibition on Rowland Hill and postal history, a significant collection of early photography, a collection of historic manorial documents and court rolls related to the area, and one of the few copies available for public reading of the "Spurs Opus", the complete history of Tottenham Hotspur. In 1949, the building was Grade I listed; the round tower was separately Grade I listed at the same time, and the 17th-century southern and western boundary walls of the park were Grade II listed in 1974. In 1969 the castle became home to the regimental museum of the Middlesex Regiment whose collection was subsequently transferred to the National Army Museum.