Dalhousie Courte, Cockpen Road, Bonnyrigg

This is a late 19th century house with additions dating to around 1880, designed by John Dennis of Newcastle. The house is a complex composition of two and four-storey elements, built around a sandstone rubble core, now predominantly covered in cement render with polished dressings.

The northeast elevation, which serves as the main entrance front, is asymmetrical and five bays wide. A square tower rises from the penultimate bay on the right. The main entrance features a round-arched polished sandstone surround with a two-leaf timber panelled door and a single-pane fanlight. There's a late 20th century timber porch projecting forward. A bipartite window is located to the left return of the tower; a bipartite window sits on the first floor and the first floor left return; and tripartite windows feature on each elevation of the second floor. The third floor has quadripartite windows, with the rear sections filled with unrendered, red brick. The eaves are corbelled, supporting a pyramidal roof with overhanging eaves and a weathervane spire. Recessed areas are located in the centre, penultimate bay to the left, and the bay furthest to the left. A glazed, panelled timber door provides access to the ground floor of the centre bay, and a bipartite window is found on the ground and first floors of the penultimate bay to the left. A circular-plan, two-storey tower is set into the outer left angle, containing three windows on each floor. The outer right features a projecting gabled bay with a tripartite window on the ground floor, alongside smaller windows on the returns, and a balustraded parapet. Above is a tripartite window on the first floor, with floreate carving on the gablehead. The timber bargeboards include trefoils, and the apex is finished with a timber finial.

The northwest elevation is asymmetrical and three bays wide, with a blank bay to the left. A single-storey concrete block represents later 20th-century additions in the centre and to the left.

The southwest elevation is largely obscured by late 20th-century concrete additions. A gabled bay protrudes to the left, with irregularly positioned doors and windows on the return side. Lean-to greenhouses are present to the right return, and the right side features a boarded timber door flanked by two bipartite windows, with a small, shouldered wallhead stack above.

The southeast elevation is asymmetrical, incorporating an original single bay from the late 18th century. The ground floor is obscured by a more recent timber conservatory. A four-pane window is positioned off-centre on the first floor, flanked to the left by a smaller four-pane window.

Most windows are timber sash and case, with two panes. The roof is covered in graded grey slate with lead ridges. The house has both a rendered, coped gablehead stack and a shouldered, corniced wallhead stack, each finished with circular cans. Cast iron rainwater goods are present.

The interior is largely unexposed, but a tiled entrance hall floor and a decorative frieze and moulded ceiling are visible in a ground floor reception room. Rubble boundary walls with semicircular coping are located to the southeast of the house.