His work focused on architectural studies and reproductions of Spanish art. He used the albumen print process which gave his images a distinct sepia tone and sharp detail. Laurent documented the expansion of the Spanish railway and the modernisation of cities. His compositions were often symmetrical and clear. He avoided the romanticised style of his contemporaries to provide objective records of buildings and public works. He also catalogued the collections of the Prado Museum.

Modern collectors value these prints for their technical precision and historical clarity. The images provide a window into nineteenth-century Spain before modern urban development. The neutral tones and architectural focus suit contemporary interior design. These works offer a sense of order and historical depth to a room. They are examples of early documentary photography that prioritise accuracy over artistic flourish.