Francesco La Grassa
Francesco La Grassa was an Italian engineer and architect active between the late 19th and mid-20th century, known especially for his contribution to the development of Liberty style and early modern architecture in Sicily.
Working primarily in Trapani and later in Rome, he combined Liberty decorative motifs with early reinforced-concrete construction, particularly in staircase design. His work forms part of the broader architectural renewal of western Sicily in the early 1900s.
Notable works in Trapani include the Palazzo delle Poste, the Casina delle Palme, and the Palazzo Montalto, as well as the reinforced-concrete helical staircase he designed in the Villino Nasi. He also intervened on the historic Palazzo Ducezio in Noto, adding a second floor to the original 18th-century construction by Vincenzo Sinatra between 1949 and 1951.
Early life and education
La Grassa was born in Trapani in 1876 into a family connected with the local building trades. After completing technical studies, he moved to Naples, where he graduated in engineering.In 1906 he won a competitive examination for engineers at the Municipality of Rome and relocated to the capital. Within the municipal technical offices he collaborated with engineer Mario Moretti on proposals for linking the Pincio with Villa Borghese for the International Exhibition of Art (1911), and worked on the design and construction of public school buildings. His exposure to large-scale urban projects and modern construction techniques, including the use of reinforced concrete, informed the architectural approach he later developed in Sicily.
Career
After returning to Trapani in the early 20th century, La Grassa opened his own studio and established himself as both engineer and architect. His early work combined Liberty decorative elements with modern structural solutions, and throughout the 1900s and 1910s he designed residential villas, commercial buildings and public works that contributed to the architectural renewal of the city during the Liberty period.During these years he developed a particular interest in reinforced concrete, which enabled forms that were difficult to achieve with traditional materials. One outcome was a type of open, helical staircase later known as the scala alla trapanese, a feature associated with his light, expressive use of structure.
La Grassa continued to work on municipal-scale projects as well as individual commissions. In 1922 he drafted a "piano di avanzamento dei fabbricati" for Viale Regina Elena, an urban corridor running along the Port of Trapani. His practice also extended beyond Trapani: he produced designs for buildings in Ragusa and in Noto—where he contributed to later interventions on historic fabric—as well as in other centres in western Sicily.
Alongside his Sicilian work, La Grassa was intermittently active in Rome during the 1910s and 1920s, taking part in engineering and architectural projects and encountering emerging currents that would later feed into Italian Rationalism. This experience influenced his later output, which adopted more essential and modernist lines while retaining aspects of his earlier Liberty vocabulary.
Among his documented works are the 1907 additions to the Villino Nasi in Trapani, including the upper floor and its reinforced-concrete helical staircase, as well as the Palazzo delle Poste and the Casina delle Palme. Across these projects, La Grassa’s architecture is characterised by the integration of Liberty ornament with careful proportioning and an inventive early use of reinforced concrete. His later works show a shift toward simplified, rational forms consistent with wider trends in Italian architecture during the interwar period.