G and H Barracks, Horseshoe Barracks

G and H Barracks, located at the British School of Gunnery, was built in 1859, with drawings signed by Captain J Inglis of the Royal Engineers. The building is constructed of yellow stock brick featuring rubbed brick heads, gable and axial stacks, and a slate roof. It has a single-depth plan with rear service wings.

The exterior is two storeys high and consists of a ten-window range, with a single-storey, one-window block on the left and a two-storey, two-window block on the right. The front is symmetrical, featuring a plat band and overhanging eaves. The entrances, located three bays from each end, have three-pane overlights and double doors with six raised panels, along with six-over-six pane sash windows. The end blocks have round-arched doorways in the gables with radial fanlights and double six-panel doors. The rear of the building has similar window arrangements, with two-storey service wings that are two bays deep, featuring outer segmental-arched doorways and small rear gable stacks.

Inside, there is a dogleg stair from the entrances with a square newel and uncut string metal balusters, as well as heated barrack rooms. Historically, this building is one of a group of eight barracks arranged around a circular parade ground, representing a unique example of reformed barrack planning through its use of smaller separate buildings.