The building that is now Casa Batlló was built in 1877 by Emili Sala i Cortés. Early in his career, Antoni Gaudí had worked as a draughtsman for Sala i Cortés.
In 1904, textile industrialist Josep Batlló hired Gaudí to design his home. Batlló was married to Amalia Godo Belaunzaran, from the family that founded the newspaper La Vanguardia.
Initially, Batlló’s intention was to tear down the building and build a new one. Gaudí suggested that a renovation was sufficient and the project went ahead, reaching completion in 1906.