Cockpen Nursery School, Sherwood Crescent, Bonnyrigg

The Cockpen Nursery School, located on Sherwood Crescent in Bonnyrigg, was built in 1835 and has undergone later additions and alterations. It is an asymmetrical, two-storey school and school house, with a single-storey wing extending to the right and a square-plan porch to the rear (west) elevation. The building is constructed of stugged ashlar sandstone, with polished and droved ashlar dressings. Gable dormer windows are present, and the gables feature stepped blocks. A base course defines the east (principal) and north elevations. Window reveals are chamfered.

The east elevation is three bays wide with a raised, architraved doorpiece featuring Gothic ancones and a cornice, above a single window on the first floor. There are windows on each floor of the bays to the left and right. To the right is a single gable with a full-height bay slightly advanced, incorporating a tripartite, pointed-arched window with a segmental arch in the centre and a diamond-framed vent above. A bracketed die is positioned at the apex of the gable.

The north elevation (playground side) is single-storey and four bays wide, with an advanced two-bay projection to the right. Single windows are in each bay to the left of the centre, and an advanced, gabled group with a diamond-framed vent and gablehead stack is to the right. A modern part-glazed door is present with a narrow window to the left return.

The west elevation is single-storey and two bays wide, with a full-height gable wall to the right featuring a tall tripartite window and a diamond-framed vent above. A single window is in the bay to the left, paired with a square-plan porch to the outer right, including a panelled door and a multi-pane geometric fanlight.

The windows are a variety of types, including 24-pane timber sash and case (some PVCu), tripartite timber mullioned windows with Y-tracery, 12-pane sash and case, 24-pane fixed, 16-pane fixed, and 6-pane with top-hopper. The roof is covered in grey slate, includes ridged ashlar coped skews with prominent skewputts to the dormers, and has wallhead coped ashlar stacks to the north and south elevations, and a coped ashlar stack at the centre of the roof.

A sandstone rubble boundary wall with a shaped rubble cope defines the property.

An outbuilding, a single-storey symmetrical garage, also stands on the property. It is constructed of ashlar sandstone with polished ashlar quoins. It features an opening in the centre with a piended grey slate roof, symmetrical square-plan wings to the outer left and right, an ashlar coped flat roof to the wing on the left, and a later raised brick section to the wing on the right with a monopitch corrugated iron roof. Painted wooden tie beams and braces are present.