In July 1926, one month after Antoni Gaudí's death, Joaquim Folch i Torres, director general of the Barcelona Arts Museums, suggested opening one in his workshop to conserve and publicise his work. The idea found support in 1935 from a group of artists and intellectuals.
The burning of the workshop in 1936 was an immense loss and involved a change to the museum proposal. The long process of collecting the material connected with the work and the figure of Gaudí and the reconstruction of plaster models from the remains began. The process would allow the works on the church to continue and a museum to open, though inevitably quite different from the one conceived before 1936.
The Museum was inaugurated in 1961 in the half-basement on the Passion facade. That original core, with later extensions and refurbishments, is now part of the Museum. While not forgetting Gaudí's output as a whole, the exhibition focuses on the building works on the church.