5 Union Place, Montrose

7 Union in Montrose is a terrace of four houses built in the earlier 19th century. Each house is two storeys high, with a basement and attic, and features three bays arranged in mirrored pairs. The front is finished in sandstone ashlar, while the sides and rear are made of squared rubble. There are band courses below and above the ground floor, an eaves cornice, a blocking course, raised quoins, and raised margins.

The western elevation features No 4 on the right, which has a bipartite window and another window to the right in the basement. A six-step flight of stairs with cast-iron railings leads to the entrance at the raised ground floor on the left. The doorway is consoled and corniced, topped with a decorative two-pane rectangular fanlight and a panelled door. Above, there is a window at the first floor, with two bays to the right at both the ground and first floors, and a bowed dormer above. No 5 to the left is a mirror image of No 4, but has the door located to the right in the basement. No 6 to the left mirrors No 4 but has the door to the left in the basement. No 7 to the left is a mirror image of No 5.

The southern elevation is a blank gable end, while the northern elevation is a harled blank gable end. The eastern elevation has two bays at the rear. No 4 features a later mansard attic, No 5 is harled with a piended dormer to the right, No 6 has a later mansard attic, and No 7 has a canted dormer to the right.

The houses have timber sash and case windows, with No 4 featuring 12-pane windows and plate glass in the others. The roof is covered in grey slate with coped skews. There are ashlar gablehead stacks on the north and south, a ridge stack at the centre, an ashlar wallhead stack to the right on the east, and a brick wallhead stack to the left on the east.

The interior was not seen in 1998. The property has a low, coped boundary wall at the front with decorative steel railings, and rubble boundary walls at the rear.