The interior of the building is shaped around a spacious atrium adjacent to the garden. A glass roof, together with the transparent facade, floods the space with natural light all the way through the ground floor. The atrium features the building’s ‘green lung,’ a spectacular 20-meter-high wall covered with plants, visible from all the balconies of the four 1600 m2 office floors that embrace the spacious void. On the southwest side of the atrium, visitors are led to the first floor through a large staircase, a volumetric element that defines the space and the grand start of the walking route throughout the whole building. Combining the informal quality of a gathering space with the public prominence of an exhibition space, the design of the staircase responds to its main functions: the large steps host flexible staff meetings and breaks, as well as presentations and lectures. The ground floor accommodates the public functions of the building, such as the reception and the restaurant. The column-free office floors that face the atrium are filled with daylight and are designed as flexible workspaces. Through the glass facades, they also offer spectacular views on Schiphol Airport, the building garden, and the surrounding polder landscape. Inviting and informal working places stimulate different ways of working together throughout the whole building. Featuring a variety of spaces for small and large gatherings, it can also be used as a meeting center.