Fillea, with green houses, works on 5.5 million buildings - Infrastructure & Cities. European directive on green homes will lead to the redevelopment "in just a few years of over 500 thousand public buildings and around 5 million private buildings with the poorest performance", says CGIL.
55% of the reduction in energy consumption to be achieved through the renovation of buildings with lower performance, by 2030. By 2033, 26% of buildings have the lowest energy class. That is, 43 percent of the least efficient buildings will have to be redeveloped.