The park was built from 1900 to 1914 and was officially opened as a public park in 1926. In 1984, UNESCO declared the park a World Heritage Site under "Works of Antoni Gaudí". Park Güell is the reflection of Gaudí's artistic plenitude, which belongs to his naturalist phase (first decade of the 20th century). During this period, the architect perfected his style through inspiration from organic shapes. His practice introduced a series of new structural solutions rooted in the analysis of geometry, thus, adding creative liberty and an imaginative, ornamental style. Starting from a sort of Baroquism, his works acquire a structural richness of forms and volumes, free of the rational rigidity or any sort of classic premises. In the design of Park Güell, Gaudí unleashed all his architectonic genius and put to practice much of his innovative structural solutions that would become the symbol of his organic style, and that would culminate in the creation of the Basilica and Expiatory Church of the Holy Family (Catalan: Sagrada Família).
Güell and Gaudí conceived this park, situated within a natural park. They imagined an organized grouping of high-quality homes, decked out with all the latest technological advancements to ensure maximum comfort, finished off with an artistic touch.