The design consisted of two identical wings, joined by a semicircular colonnade forming the backdrop of the amphitheatre. The colonnade was terminated on either side by a tower. Each wing had a basement and three floors above ground. The interiors were created in the Cape Dutch style with carved teak fanlights, heavy doors, dark ceiling beams contrasting with white plaster walls and heavy wood furniture. Baker used indigenous materials as far as possible. The granite was quarried on site while Buiskop sandstone was used for the courtyards. Stinkwood and Rhodesian teak were used for timber and wood panelling. The roof tiles and quarry tiles for the floors were made in Vereeniging.