The Royal Danish Theatre has decided to transform the historic, listed building known as Stærekassen into an immersive experience space for children and the adults accompanying them—a new concept that reflects the building’s original function, tailored to a child's perspective. In addition to ensuring comfort and functionality through reliable heating and plumbing systems, new ventilation systems meeting current standards have been installed. The goal has been to ensure a healthy, comfortable indoor climate with good air quality and stable temperatures, preventing users from being adversely affected by poor air quality or high temperatures.