Since 1996 PEI has been working on international projects, workshops and collaborations like: Invisible Transformations, Barcelona, Spain; “Handmade Urbanismo”, Campo de La Cebada, Madrid, Spain; Central Falls Public Park + Plaza Design Build-RISD, Road Island, United States ; AC-Arquitectos de Cabecera and Piso Piloto, Barcelona, Spain; Fruits and Vegetables Market on Matadero, Madrid; Global Landscape, Buenos Aires, Agentina, and many other. In the “New Territories” program: Cultural Palomino “Society under construction” and “Colective Inteligencies” Palomino, La Guajira; “Dry composting toilet” Ciudad Perdida (Lost City), Sierra Nevada Santa Marta; “From territory to the detail”, “Bamboo Think Tank” and “Cultural Interest Housing” Caimalito, Pereira, Risaralda; “Cultural Machine” project at the Solar Decathlon Latinoamerica and Caribbean 2015, Cali; as well as new proposals for Ambalema, Tolima about “Tactical Urbanism Interventions” and the Emerging Herritage projects at the old train station in La Sabana in Bogotá and with the Bocachica community on San Fernando fort in Cartagena de Indias.

​