Glenarn House, Glenarn Road, Rhu

The Walled Garden at Glenarn House, located on Glenarn Road in Rhu, dates back to the 1830s. This two-storey villa features an asymmetrical design with gabled roofs and Tudoresque details. The exterior is finished in cream-painted harl, accented with honey-coloured sandstone dressings and margins, including a base course, quoin strips, and hoodmoulds.

On the southwest elevation, the main block has two bays, with a service wing set back to the right. There is a modern lean-to glazed conservatory or studio attached to the right return. The main block has a broad gable on the outer left, which includes a full-height, polished sandstone canted window topped with a dentilled dividing cornice and a saw tooth blocking course. To the right, there is a broad, moulded doorcase with a hoodmould, leading to a two-leaf door and a half-glazed inner door, with a window above and a gable over it. The kitchen block, recessed to the right, is gabled and features hoodmoulds and a modern door.

The northwest elevation presents four asymmetrical bays. The broad gable on the outer right has a shouldered tall flue and stack that is advanced at the center. A bipartite window is located immediately to the left of the chimney, with a blind pane to the right. The left gable features a full-height canted bay at its center, while a narrow bay to the penultimate left has windows offset to the left, including a narrow window at ground level and a smaller window at the first floor, both with hoodmoulds. The slightly advanced broad outer left gable includes a broad modern aluminium door to the right and a window in the gablehead.

The villa is equipped with plate glass sash and case windows, a grey slate roof, timber eaves, and finials. It also features tall paired apex stacks with moulded Tudorbethan cans, strapwork, lozenge and barley-sugar designs, and castellated caps.

The interior was not seen in 1993.

Adjacent to the house is a rectangular-plan coach house located to the northeast. This structure has been recently refurbished and is harled with polished sandstone dressings. It features a depressed coach arch, a two-leaf boarded door, and a window above at the gablehead, all under a grey slate roof with timber projecting eaves.

Also to the northeast is a circular-plan garden house made of rubble with harl pointing. It has a boarded wooden door and a bipartite casement window, topped with a conical slate roof featuring a lead finial and exposed timber rafters.

The entrance to the property is marked by a pair of ashlar gatepiers with corniced, conical caps, and a simple cast-iron gate.