G.A.T.E.P.A.C. Grupo de Artistas y Técnicos Españoles
para el Progreso de la Arquitectura Contemporánea.
Spanish group of architects whose origin was GATPAC, a Catalan group formed in 1930 by Josep Lluís Sert, Josep Torres i Clavé, Sixto Illescas (1903–86) and Juan Baptista Subirana (1904– 79). In 1930 GATEPAC was founded as a state body bringing the Catalan group together with a group of architects from central Spain, the most prominent of whom was Fernando García Mercadal, and a group from the Basque country that included José María Aizpurua (1904–36) and Joaquín Labayen (1904–74).