The rehabilitation of a residential building in Vitoria-Gasteiz, a characteristic block of the development movement of the 60s, has received the Grand Prize for Sustainable Rehabilitation of the Green Building & City Solutions Awards 2016, which is delivered by the international network < a href="">Construction21. The award-winning project, by the architects Israel Martínez Villa and Ramón Ruiz Cuevas, has achieved 70% savings in the building’s electricity costs through the installation of photovoltaic panels for self-consumption and a ventilation system with heat recovery, in addition to the resolution of efficiency problems in the facades and roofs. The accessibility of the portals has also been improved.

The building, which consists of three portals and 30 apartments, is located in the Zaramaga neighborhood of Vitoria-Gasteiz, a working-class neighborhood born with the industrial development of the early 1960s, so the challenges of efficiency to those that have been answered are common to many other buildings. The rehabilitation project has prevailed in the prizes for nominations from 20 other countries, including China, the United States, Great Britain, Italy, Sweden, Belgium and Morocco.

The Green Building Solutions Awards were announced on November 14 at an event held within the framework of the International Conference on Climate Change COP22 in Marrakech.