Clock Tower and Attached Walls

The Clock Tower and attached walls, built around the 1760s, were designed by James Gabriel Montresor, a Royal Engineer. The structure is made of brown brick laid in Flemish bond and features a slate roof. The lower section has segmental-headed arches on each face, complete with stone keys and impost courses, and is topped by a deep stone band. Above this is a square panelled brick stage, which supports a square pedimented stage with circular clock faces. At the top, there is a square bell turret with a dome and weathervane.

A short section of the boundary wall, approximately 1.5 meters high, remains attached to the northeast side, while a taller wall on the southwest extends towards Centurion Way, marking the former southern boundary of the magazine enclosure. This gateway and its walls are associated with the magazines constructed by Montresor, including No. 5 Powder Magazine and the proof house, which are remnants of the powder depot at Purfleet. This structure is an important part of the most significant ensemble within the Ordnance Yards, reflecting the high standards of design for fortifications and barracks established by the Ordnance Board since the 17th century.