Estonia’s justice chancellor has ruled that a requirement for bedrooms to have openable windows and access to natural light is constitutional, despite the presence of mechanical ventilation systems. The decision affirms the importance of these features, even in homes already equipped with alternative ventilation. This ruling addresses concerns raised about the necessity of windows in bedrooms when mechanical ventilation is in place. The justice chancellor determined that the requirement does not violate fundamental rights and serves a legitimate purpose related to health and well-being. This means that new construction and renovations in Estonia will continue to be held to the standard of including openable windows and natural light in bedrooms. The decision is expected to impact building regulations across Estonia.