Rosneath Home Farm

Rosneath Home Farm is a large, symmetrical castellated Gothick steading designed by Alexander Nasymth in 1803. The building is arranged in a plan that forms three sides of an octagon, with a central tower. It is constructed from ashlar, sandstone, and whinstone rubble, with some areas finished in harl and cement render. The design features pointed windows with bracketed cills, hoodmoulds, and a castellated parapet.

The north (main) elevation presents a symmetrical arrangement with a central tower, link blocks, and octagonal pavilions that have angled jambs ending in bastions. The tower is tall, with a square plan and four stages, made of ashlar. It has a stepped blind arcade of three pointed arches, which contain a pointed-arch door, a hoist door, and a window in the central arch. The flanking arches feature narrow doors with blank upper stages, and there are three blind windows at the upper stage, with the central one being larger and having an inset square window. The left and right returns also have blind windows. A pierced trefoil ashlar balustrade rests on roll-moulded corbelling, with coped corbelled bartizans and a blind arrowslit. The lower flanking link blocks are two-storey, three-bay structures made of rubble and harled materials, with the block on the right having corrugated iron additions. These connect to two-stage, octagonal-plan pavilions, with bays articulated in pointed arch recesses and pointed windows. The angled jambs lead to a two-storey, three-bay block, with the northwest block featuring a lean-to corrugated structure, connecting to two-storey terminal drums flanked by tall, circular, four-stage towers. Some windows in these towers are blocked, and a large garage door has been inserted in the west drum. The deep castellated parapet is supported by moulded corbels.

The south elevation features the tower at the center, with a rubble base and ashlar upper stages. It has a stepped blind arcade of three pointed arches, with a window set into the central arch and blind windows above. There are lean-to corrugated iron buildings at the rear.

Internally, there has been much alteration, making access difficult in some areas. Floors have been removed in the drum bastion, and stone stairs are present in the circular towers.

The outbuildings include various lean-to and cast-iron structures, with a long semicircular, corrugated-iron pigsty located immediately beside the northeast jamb.