J and K Barracks, Horseshoe Barracks

J and K Barracks, located at the Horseshoe Barracks in Shoebury Garrison, is a barrack block 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 has a ten-window range, with single-storey, one-window end blocks. The front is symmetrical, showcasing a plat band and overhanging eaves, with rubbed brick flat arches above the entrances, which are located three bays from the ends. These entrances feature 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, complete 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.

Although the interior was not inspected, it is reported to contain dogleg stairs from the entrances with metal balusters, as well as heated barrack rooms. Historically, this building is part of a group of eight barracks arranged around a circular parade ground and is noted for its unique approach to barracks planning, utilizing smaller separate buildings.