They decided to demolish the old courthouse and to incorporate the remaining part of the tolbooth into a new structure.

[1][3] The design involved an asymmetrical frontage with fifteen bays along Castle Street; the central section of five bays featured segmental-arched arcading on the ground floor and double-height segmental-arched windows on the second and third floors; the western section incorporated a five-stage clock tower with a spire while the eastern section incorporated the southern elevation of the old tolbooth.

[4] King Edward VII and Queen Alexandra inspected a Guard of Honour from the 3rd Battalion of the Gordon Highlanders in front of the new town house on 27 September 1906.

[6] The foundation stone for an extension along Broad Street was laid by the Lord Provost, Robert Lennox, on 17 November 1975.

[10] Works of art in the complex include a sculpture of Robert the Bruce by Anne Davidson showing the Scottish king in 14th-century armour carrying his shield and sword.