Casto Fernández-Shaw Iturralde. (b. Madrid, April 13, 1896 – d. San Lorenzo de El Escorial, April 29, 1978). He is the son of the writer Carlos Fernández Shaw, who died in 1911. He entered the School of Architecture in 1913, finishing his degree at the age of twenty-three, in a class made up of seventeen architects. In 1917 he joined the studio of one of his professors, Antonio Palacios. With Palacios he will participate in the project for the headquarters of the Círculo de Bellas Artes. In the studio he would coincide with Pedro Muguruza, with whom he would partner to carry out the Coliseum Building on Madrid's Gran Vía. He will work with the Otamendi brothers, who included him in their Compañía Madrileña Urbanizadora, where he won a position as architect in collaboration with Julián Otamendi, on the project for one of the buildings on Reina Victoria avenue (Edificios Titanic, 1919-21) and on a neighborhood of hotels.
In 1920 he presented the Monument to Civilization Project at the National Exhibition of Fine Arts in Madrid, achieving third place with a bronze medal.
Working with Carlos Otamendi, he would receive the commission for the El Salto dam in El Carpio, which was completed in 1922. In 1924 he was commissioned for the Alcalá del Río Dam and the Encinarejo Reservoir, and intervened in the architectural part of the Salto del Jándula. In 1925, at the Exhibition of Modern Decorative and Industrial Arts in Paris, he was struck by the USSR Pavilion by the architect Konstantin Melnikov, an example of constructivist architecture.
In 1927, he joined the Board of the Central Society of Architects as an accountant; he projects the Ateneo Mercantil de Valencia, in collaboration with J.M. Castell, and the new church of Tetuán de las Victorias.
His most important early work is the Petróleos Porto Pí gas station, 4 at Calle de Alberto Aguilera núm 18 in 1927. He founded the magazine Cortijos y Rascacielos (1930-1954), which came to issue 80 issues in two stages interrupted by The spanish civil war. He is elected Vocal of Architecture of the Board of Directors of the Circle of Fine Arts of Madrid, in 1930.
He had a period of time in which he only dedicated himself to the construction of the Coliseum building on Madrid's Gran Vía (1930-1933), carried out in collaboration with Pedro Muguruza. Between 1934 and 1935 he carried out the Residential Building, on Menéndez Pelayo Avenue. After the Civil War he built different office and residential buildings, among which the façade of the Banco Hispano de Edificación on Gran Vía in Madrid (1943-44), and the San Fernando Market on Calle de Embajadores stand out.
He died in Madrid at the age of 83.