Johnstone Parish Manse

The Johnstone Parish Manse is a house that has expanded over several phases, beginning with a manse built in 1735. It was enlarged in 1795 and 1809 to create an L-shaped house with three-bay frontages facing south and west. A stair turret is located in the angle between the wings. The house is two storeys high and constructed from coursed rubble, with ashlar margins, dressings, and rusticated quoins, all of which are whitewashed. Single-storey outbuildings are present.

The south elevation has ground floor openings that were altered around 1840, featuring enlarged windows and a recessed doorway with Doric columns set within a hoodmould. The margins of the first floor windows are linked by a band running along the eaves. The west elevation has a narrow, centrally placed doorway with a modern doorcase. Sash windows with 12 panes of glass are found throughout. A main cornice runs around the building, and there are end and axial stacks. The roof is gabled at the east end and piended elsewhere, covered with graded slates. A tall, narrow lean-to at the rear, which may originally have housed a privy, has an attached outbuilding. A detached, L-shaped range of outbuildings to the north was altered by James Barbour in 1878.

The interior has been significantly altered, but retains a fine, mid-18th century chimney piece, believed to be re-used from a house in Dumfries, in an east ground floor room. To the west, there are square ashlar gatepiers with pyramidal caps, also designed by Barbour in 1878; these are connected by an ashlar-coped garden wall.