Campo de la Cebada
The Campo de la Cebada came to be in October 2010, when the city decided to demolish a sports complex in the La Latina area. Residents and neighbourhood groups worked together to create and manage an area dedicated to citizen social and cultural initiatives, with shared gardens and sports fields. Benches and bleachers were designed and made from recycled materials using free designs and fab-lab tools. Participants even created a geodesic dome 14 metres in diameter for hosting different cultural and social events.
The Campo de la Cebada has since grown to include exchange services, workshops for street art, photography, poetry and theatre, and events such as open-air music and film festivals. Activities are totally self-managed by groups representing residents, retailers, and associations, as well as architects, urban planners, researchers and engineers. It’s administered collectively rather than within the closed circle of a few elected officials or experts. Its objective is “that anyone may feel concerned and be implicated in the functions of the place”, according to Manuel Pascual of the Zuloark architectural agency." (https://theconversation.com/how-madrids-residents-are-using-open-source-urban-planning-to-create-shared-spaces-and-build-democracy-79717)