After 1914, Gaudí devoted himself exclusively to building La Sagrada Família, which is why there are no other major works from the last years of his life. He became so involved that he lived his last few months right next to his workshop, a room beside the apse used for making scale models, doing sketches and drawings, as a sculpture studio and a space for photographic work, amongst others.
In 1911 he planned the Passion façade and in 1923 the definitive solution to the naves and roofs. The works advanced slowly, though, and Gaudí said: "There is no reason to regret that I cannot finish the church. I will grow old but others will come after me. What must always be conserved is the spirit of the work, but its life has to depend on the generations it is handed down to and with whom it lives and is incarnated".
On 30 November 1925 the construction of the first bell tower of the Nativity façade, dedicated to St Barnaby and 100 m high, was finished. This is the only one that Gaudí lived to see built, since on 10 June 1926 he died as a result of a tragic accident three days earlier, when he was run over by a tram. On 12 June he was buried in the Carmen Chapel in the crypt of La Sagrada Família, where his remains still lie today.
All those years, a large number of architects, draughtsmen, sculptors and model makers had worked on the project with Gaudí. Among the architects were Francesc Berenguer, Joan Rubió, Domènec Sugrañes, Josep Maria Jujol, Josep Canaleta, Francesc de Paula Quintana i Vidal, Josep Francesc Ràfols, Cèsar Martinell, Isidre Puig i Boada, Lluís Bonet i Garí, Francesc Folguera and Joan Bergós. Among the draughtsmen was Ricard Opisso, and among the sculptors Llorenç Matamala, Joan Flotats, Joan Matamala, Carles Mani and Pau Badia. The most notable constructor was Agustí Massip i Brassó; the locksmith was Joan Oñós; the ceramic elements were made by the Pujol i Bausis company in Esplugues de Llobregat; the woodwork by Jaume Munné; and the ironwork by the Badia brothers.