ACHA ZABALLA ARQUITECTOS is the studio founded in 2006 by Cristina Acha and Miguel Zaballa. They have been awarded different prizes at national and international competitions (European 13 Norway, the rehabilitation of the San Jerónimo Convent in Herrera del Duque as a guesthouse, the rehabilitation of the Ocharan tunnels in Castro-Urdiales, 70 subsidised housing projects in Huesca, among others). In 2015, the studio was chosen by the magazine On Diseño as one of the 35 emerging teams in Spain.