ACHIEVING SUSTAINABILITY IN PROTECTED BUILDINGS IN SPAIN

Abstract: The world population growth and the consequent increase in energy demand in recent years are making sustainability to become a key element in order to ensure the future of the society. In Spain, buildings account for 24% of total energy consumption, and within the buildings stock there is a group called "protected buildings" with low efficiency and therefore a large room for improvement, although constrained by different limitations and special requirements due to their condition. Through a study of the limitations of these buildings it´s possible to find the best solutions to make them more sustainable, focusing on reducing their energy consumption, on keeping the characteristic features of these buildings as part of the Spanish Historical Heritage, and on the economic terms of achieving all this.