Former Sergeants Quarters, Brock Barracks

The former sergeant's quarters at Brock Barracks were built in 1877, designed by Major H.C. Seddon from the War Office, with Major Flint as the supervising engineer. The building is constructed of red brick with yellow brick bands, moulded brick heads, and stone dressings. It features lateral stacks with square cluster shafts and a truncated ridge stack, topped with a tiled cross-gable roof.

The structure has a double-depth plan and stands two storeys high with a 2:3-window range. It presents an asymmetrical façade with yellow sill bands and a moulded brick band below the window heads. The gables are coped on moulded kneelers, with the left gable featuring a 2-centre arch over paired first-floor windows that have patterned brick infill. There is a doorway on the right side, and the tall narrow windows are fitted with small-paned sashes and cambered heads.

Although the interior has not been inspected, this building is notable as a standard design for Localisation depots, which were part of the Cardwell reforms aimed at redistributing barracks across the country to foster local connections and aid recruitment. It is recognized as one of the most complete surviving depots, alongside Bodmin.