Central Mill Building, Grannies Park, Edinburgh Road, Dalkeith

The Mill Building comprises a group of three mill buildings situated at Grannies Park, Dalkeith, dating from the late 18th and early to mid-19th centuries. The buildings are constructed of rubble stone, with some ashlar dressings. They feature crowstepped gables and dormerheads.

The main complex is an L-shaped arrangement, including a former 3-storey and loft flour mill and a later cartshed range. The western end of the north range was built in the late 18th century, with subsequent lengthening occurring between 1822 and 1835, and the south cartshed range added after 1852.

The west elevation is M-gabled. A brick forestair with stone treads leads to a door in the east-west face of the right gable. A further door is located to the left of the right gable at the first floor level. Windows are set in the first and second floors, and also within the gableheads, with the right gable showing windows left of centre.

The south elevation features a modern timber lean-to in the re-entrant space. A 3-bay cartshed is present to the left with a continuous timber lintel above three porch entrances and two wide relieving arches over the outer bays. A door is located at the centre of the first floor, with regularly disposed windows and a small window at the second floor level. A single-bay gabled return elevation incorporates windows. Four bays to the right have windows at the second floor level, interrupted by a lean-to, with a dormerhead in the bay to the right of centre and a blank addition in the outer left bay.

The east elevation is gabled, single bay, and includes an iron forestair leading to a door at the first floor. A window is positioned at the second floor. The north elevation is 7-bay (3-4), with a modern corrugated iron lean-to adjoining six bays to the right. An arched mill race opening is located in the outermost left bay, with regularly disposed windows in the remaining bays. An earlier mill building is visible to the west of the north range. Window openings are variously glazed, boarded, or bricked up. The north block has an asbestos roof, while the south roof is covered in plastic sheeting.

A 2-storey, 5-bay symmetrical gabled block (built between 1822 and 1835) demonstrates doors in the bays flanking the centre, with first-floor granary loft doors breaking the eaves in gabled dormerheads above. Ground-floor windows are present in the remaining bays, with slits above at the first floor. Evidence on the masonry indicates a former adjoining kiln. The north elevation is gabled and blank, while the south elevation is gabled with a central door. Grey slates cover the roof. A rubble wall runs east, adjoined to the southeast corner.

A two-storey block of two dates is visible as a single storey at street level (built between 1822 and 1835). The south elevation (facing Edinburgh Road) is symmetrical with six bays, comprising two mirrored three-bay single-storey elevations, each featuring a door at the centre flanked by windows (the left door now blocked); squared and snecked rubble appears on the left, while coursed rubble is on the right. All openings are boarded. The building curves to the west, following the road line. A further bay abuts the southwest corner, providing doorway access to a forestair on the southeast corner. The north elevation is asymmetrical with six bays. Doors are located in the penultimate bays, and ten irregularly disposed windows are present at ground and first floor levels. Several windows have small-pane glazing patterns in sash and case windows, while the majority feature fixed-pane glazing. The east gable is blank, with a rubble lean-to adjoining at ground level to the right. A forestair is located to the left. The west gable is blank. A corniced ashlar stack is positioned on the east side, with brickwork on the west. Grey slates are used for the roof, with the south pitch sloping at the west end, following the curved line of the building.