Despite positive evolution in recent years, Lisbon still has many buildings that are either abandoned, poorly maintained or even in ruins. According to data from the Lisbon Chamber of Commerce in 2018, there are 2,626 buildings in the city declared totally or partially vacant and 7,230 in poor condition, concentrated in the city’s historic neighbourhoods. Experts speak of the need for €4 billion in urgent rehabilitation works in the capital and over €24 billion nationwide.