Llucmajor was granted the title of city by Royal Decree on October 3, 1916, signed by King Alfonso XIII and the Minister of Governance at the time, Joaquín Ruiz Jiménez. Although initially an honorary and political title, the town was undergoing significant transformations that justified the distinction.
The early decades of the 20th century in Llucmajor were marked by strong population growth alongside a period of economic expansion. Many large estates were divided and sold in small plots, mainly for almond cultivation. At the same time, notable industrialization took place, particularly in the footwear industry.
In parallel, remarkable urban transformations occurred. In October 1916, the new municipal market (the old fish market), designed by architect Jaume Alenyà, was inaugurated. That same month, on the 5th, the Palma-Santanyí railway with a station in Llucmajor was inaugurated (today dismantled, though officially planned to return by around 2032). Finally, on November 25 of that year, the first power plant, “El Porvenir,” was inaugurated, ushering in electric public lighting.