The Waldorf-Steiner El Til·ler School in Bellaterra has expanded its facilities this September with a new building on C/ Apel·les Mestres, 11. This institution has an interesting management model - it is an educational cooperative managed by teachers and families. In fact, the project of this new building has been designed by three architects who are parents of students: Ignasi Rius, David Tigges and Eduard Balcells. They have opted for a sustainable construction integrated into the environment, which is clad in wood. In addition to the construction, the works have included the transfer of modules from another location. The project has been led by Sergio Benedit as project manager and Juan Pedro Martínez as foreman and it lasted 11 months.