Scott was for some years examiner in military topography under the military education department. He was awarded medals for service rendered to the Great Exhibition of London in 1862, the Prussian Exhibition of 1865, the Paris Universal Exhibition of 1867, the annual London International Exhibition of fine arts, industries, and inventions, the Dutch Exhibition of 1877, and the Paris International Exhibition of 1878. He received in 1880 a silver medal from the Society of Arts for a paper entitled 'Suggestions for dealing with the Sewerage of London,’ and the Telford premium for a paper he contributed in the same year, in conjunction with G. R. Redgrave, to the Institution of Civil Engineers, on the 'Manufacture and Testing of Portland Cement.' He had prepared the plans for the completion of the South Kensington Museum, when, in 1882, the treasury, as an economy, abolished his appointment as secretary of the Great Exhibition commissioners. This abrupt termination helped to break down his health. He designed the buildings for the Fisheries Exhibition, but was too ill to attend the opening. He died at his residence, Silverdale, Sydenham, on 16 April 1883, and was buried at Highgate Cemetery.