The building was designed as the result of a public competition, the winning architects being Messrs Harry Austin Reid and Frederick George Green, with the contractors being Messrs T. Howard and F. G. Scott. Much of the building material, including fixtures and fittings was imported from Europe. The Organ was built by Messrs Norman and Beard of London and Norwich, the specifications were drawn up by Sir George Martin, organist of St Paul's Cathedral in London especially for the City Hall. The workmanship and materials are of high quality, and the organ made from mahogany, teak and pine. Sir George Martin spoke of it as “a magnificent instrument in every gradation of tone, from the softest stop to the most powerful tuba being found in the organ, and all under the most perfect control, and that altogether the instrument must be regarded as an artistic and mechanical triumph”. There are altogether 3165 pipes varying from to. The wind was supplied by a Kinetic Blower worked by an electric motor. The tower of the City Hall has a Turret Clock which strikes the hours and chimes the Westminster quarters. The faces of the clock are made from 4 skeleton iron dials filled with opal. The clock has a 24-hour wheel and lever. The bells were cast by Messrs John Taylor and Co of Loughborough and the clock was supplied by JB Joyce & Co of Whitchurch. The City Hall's carillon was installed as a World War Iwar memorial, with 22 additional bells being added in 1925 with the visit of the Prince of Wales. On February 11, 1990, only hours after his release from prison, Nelson Mandela made his first public speech from the balcony of Cape Town City Hall.
Contemporary use
The City Hall no longer houses the offices of the City of Cape Town, which are located in the Cape Town Civic Centre. From 1982 to 2008 it hosted the Central Library, which has since moved to the adjacent Old Drill Hall. The City Hall has become a central venue for creative and cultural events such as art exhibitions and concerts. One of these events includes the City Hall Sessions. Perhaps the most widely publicized event held at the Cape Town City Hall is the Festive Lights Switch On, hosted by the City of Cape Town. The event is free to all, and includes top local performers, musicians and a projection mapping display on the facade of the building.
Statue of Nelson Mandela
On 24 July 2018, a statue of Nelson Mandela on the balcony overlooking the Grand Parade was unveiled. It was on the same spot where he made a speech when he was released from prison on 11 February 1990. A 3D computer model of the Nelson Mandela Statue was also created. The 3D model is based on terrestrial laser scanning and photogrammetry.
Between 2017 and 2018, the Zamani Project documented the Cape Town City Hall with terrestrial 3D laser scanning. A textured 3D model and a Virtual-Tour is available on the City of Cape Town's website. The non-profit research group from the University of Cape town specialises in 3D digital documentation of tangible cultural heritage. The data generated by the Zamani Project creates a permanent record that can be used for research, education, restoration, and conservation.
Animation
An animation, based on the 3D model of the Cape Town City Hall was created by the Zamani Project.
