90 High Street, Rothesay, Bute

90 High Street in Rothesay, Bute, is an early 19th-century, symmetrical, two-storey, three-bay former manse built in a plain classical style with a rectangular plan. The building was flatted in the later 20th century and has entrances at both the front and rear. It features random rubble cherry-cocked sandstone with painted margins and narrow strip quoins. There is a raised lintel course and droved long and short rubble surrounds around the openings, along with projecting cills. The rear is constructed of random rubble sandstone with droved rubble surrounds to the painted openings.

On the east (entrance) elevation, there is a replacement two-leaf boarded timber door at the centre of the ground floor, accompanied by a replacement bipartite fanlight. The outer left and right bays each contain single windows at the ground floor, while all bays have single windows at the first floor.

The west (rear) elevation features a central stair leading to a modern door for the entrance to the first-floor flat. There is a blind opening at the ground floor, offset to the right of centre, and a small square window offset to the left. Single windows are present in both floors in the outer left and right bays.

The building has replacement two-pane timber glazing at the front and rear, a graded grey slate roof with raised stone skews, a droved sandstone apex stack to the north with circular cans, and a rendered apex stack to the south with missing cans.

The interior was not seen in 1996. The boundary wall consists of a low coped random rubble wall along High Street, with a replacement cast-iron gate for pedestrian entry.