East Barrack, Berwick Barracks Museum

The East Barrack, now part of the Berwick Barracks Museum, is a barrack and officers' block dating to 1721. It was likely designed by Nicholas Hawksmoor for the Board of Ordnance, reflecting the need for a permanent garrison on the Scottish border and pre-dating most other English barracks by nearly 80 years. The building is constructed from sandstone ashlar, with later rendering to the front, brick axial stacks, and a slate valley roof. It showcases a Vernacular Baroque style. The plan is double-depth with an officers' section to the north, forming the east side of the parade ground quadrangle.

The exterior is three storeys and an attic, featuring a 16-window range by 4-window range. The design is near symmetrical, with the left-hand end section set forward. It exhibits blocked quoins to stepped gables, and a single bay to the right of the end range defined by a blocked pilaster strip. Entrance bays are centrally located with three bays from each end of the main range, broken forward with a thin cornice and parapet. Segmental-arched doorways have imposts, tall keys, small-paned fanlights, and double boarded doors. There are ashlar surrounds to ground- and second-floor flat-arched 8/8-pane sash windows, and first-floor round-arched sashes with a key and impost. The five accentuated right-hand bays feature segmental-arched first-floor windows, a detail mirrored in the matching rear elevation. The left-hand gable onto the Parade has three segmental-arched ground-floor windows and one smaller right-hand one, alongside a single first-floor round-arched window and a second-floor segmental-arched window, all with 8/8-pane sashes, except for two right-hand ground-floor windows which have 20th-century horned sashes. Two boarded oculi are located in the stepped gables.

The interior includes axial fireplaces in heated, back-to-back barrack rooms, divided by a spine wall, and stair flights from the entrances with uncut strings and two rails. The former officers' section features a staircase with column balusters, square newels, and a moulded rail, alongside a first-floor axial corridor and fireplaces with fluted surrounds. The building is one of a number of Ordnance buildings linked to Hawksmoor and Vanbrugh.