h3o architects is a Barcelona-based architecture studio founded by Adrià Orriols, Joan Gener, and Miquel Ruiz. Their practice promotes innovative and speculative designs in the fields of architecture and urbanism, addressing the challenges of contemporary society. Climate change, social responsibility, and the hybridization of human and non-human realities form the foundation of each project. In the theoretical field, the studio explores the membrane as the architectural epidermis, examining its social, political, and ecological implications.

Notable projects include the transformation of the Convent of Las Clarisses into the new library in Arenys de Mar, a block of 155 housing units at Kop-Dakpark (Rotterdam), winner of the Europan 15 Rotterdam Award, the re-naturalization of the plaza in Castell d’Aro, and a new residence for the elderly in Es Migjorn Gran, Menorca—all currently underway.