Urbanarbolismo have designed a vertical garden for the Palacio de Congresos Europa (Palace of Congresses Europe) in Vitoria-Gasteiz, Spain. From the designers The city of Vitoria- Gasteiz is recognized internationally for integrating biodiversity and green spaces in the urban architecture. Within the Inside Green Ring Project Urbanarbolismo and Unusualgreen studios have made this green facade to bring the sorrounding ecosystems to the city center. The vertical garde has a total area of 1492m2, of which 1000m2 are an hydroponic vertical garden system f + p and 492m2 are made of climbing plants covering the windows. We have been used more than 33,000 native plants of different varieties from Alava and the Basque Country . The main reason to make the project was to improve energy consumption of the Palace of Congresses, the vertical garden “f + p preplant ” system adds a thermal resistance of 2,644 m2.K / W . This represents a 270% increase on the existing facade insulati