The first hospital building on the Grosvenor Road site was designed in 1899 by architects Henman and Cooper of Birmingham in a partial adoption of the English Revival style. The design incorporates a turreted verandah-balcony extending along a series of ward pavilions. The hospital became the first air-conditioned public building in the world when Belfast's Sirocco Works installed the system. It was officially opened by King Edward VII and Queen Alexandra on 27 July 1903. The King Edward Building, built to commemorate the life of the late king, was completed in 1915. The Royal Maternity Hospital was officially opened on the site previously occupied by the Belfast Asylum, to the immediate south of the main hospital, in 1933. Later additions included a free-standing radiology department and theatre block in 1964.