 Spooner died in Kuala Lumpur on 14 May 1909.Apart from his work in engineering and railways, Spooner was responsible for the creation of many buildings in Malaysia in a style of architecture that has been variously described as Indo-Saracenic, Neo-Mughal or Moorish, but which Spooner himself described as "Mahometan" (Islamic).The first building created in such a style under his instruction is the Sultan Abdul Samad Building.