The façade originally incorporated a grid of recessed openings and balconies, with four bays having arched bronze windows and stepped parapets. The building's front façade has strong horizontal lines, displaying only two storeys, with higher massed elements behind the façade on either side of the centre, indicating the location of the two debating chambers, with a lower mass in the centre where King's Hall is located. Murdoch's simplified classical design is based on a basic square, which provides the building with a regular proportion in terms of fenestration and other elements, including the (now enclosed) verandas and colonnades. The height of the building at the roof of the chambers is (excluding the flagpole).