Lucía Millet

Lucía Millet is an architect and co-founder of Cierto Estudio, a Barcelona-based practice founded by six partners in 2014, whose work now extends to France, Belgium and Switzerland. They work on the basis that architecture belongs to the people: rather than designing spaces, they design what will happen within them. Their practice encompasses collective housing, urban planning and interior design, always based on horizontal dialogue and synergy between disciplines. Their projects include the Illa Glòries social housing block (nominated for the EUmies Awards) and the Superilla Barcelona urban renaturalisation project, which won the AJAC Award and the New European Bauhaus Prize. Very recently, they were awarded the UIA Young Architects Prize 2026.