In Brazilian cities, we see new residential buildings being constructed with cantilevered balconies—that is, extending beyond the building's perimeter and encroaching upon the minimum required setbacks (referred to as afastamentos in Rio de Janeiro). However, what we have seen in recent years is a growing trend of enclosing these balconies with glass panels, consequently expanding the adjacent rooms. But what is the reason behind this enclosure? If there is a need to enlarge these spaces, why aren't they designed this way to begin with?