Walled Garden, Lochnaw

The Walled Garden at Lochnaw, designed by John Hay around 1812, features a polygonal layout with a circular gazebo at one corner. The garden is enclosed by rubble walls and the Mill Isle Burn to the south, with red sandstone flat coping on the walls. The north wall, which was once the site of glasshouses, has brickwork on the inside. There are several round-arched gateways throughout the garden.

The gazebo, located in the southeast corner, has a bowed loggia at its internal angle. It is constructed of rubble that was formerly rendered, with ashlar margins and red sandstone flat coping at the top. A semi-circular string course made of red sandstone runs below the wallhead. The gazebo features round-arched openings, a doorway to the southeast, and windows facing east and south. There is also a doorway to the northeast leading into the loggia, which has narrow flanking windows. The loggia wraps around the gazebo to the northeast, featuring a low bowed brick wall and a bowed slate roof supported by four tree trunk piers. Remnants of a studded door and window framing can be found in the gazebo.

There are no original glasshouses remaining. A large round-arched gateway is located to the southwest. Roofless rubble lean-to outbuildings, including former mushroom houses and a furnace house, are attached to the outer side of the north wall. A piended square-plan building, which was a former toolhouse, is connected to the outer angle to the northwest and has a round-arched doorway leading from the garden.

The enclosure, which was once a "flower garden," lies between the south wall of the garden and the Mill Isle Burn, bordered by walls to the east and west that continue across the burn. A wall is attached to the northeast angle of the garden, featuring a large segmental-arched opening to the east, and curves around to the southeast to cross the Mill Isle Burn with a segmental arch. Another wall is connected to the south angle of the garden and also crosses the Mill Isle Burn with a round arch. The walls end on the south side of the burn, where the banks of the Mill Isle Burn have been built up with rubble. A small circular pond, lined with brick, is situated within the enclosure.