The building is located on a huge place in front of the railway station Zürich Hardbrücke. In contrast to the large tower above, the entrance seems rather small and inconspicuous as it is created with the same material as the rest of the building. That makes the entrance hard to find and it seems hidden. It seems like the entrance begins in the middle of nowhere and has an unexpected appearance. The building has several other entrances of which all have a different function. There are two protruding parts that come out of the building which present the main entrance of the tower. Each of this protruding parts has a revolving door.
The access to the building is public. The entrance is mostly used by businesspeople because the tower functions as an office building. If you look inside the entrance you can see a huge and plain hall. The only furniture visible are a white sofa and an information desk created like a cuboid made out of concrete. The desk helps employees but also outsiders with questions.
The tower is made out of a large, shimmery green glass façade. The frames which hold the glass are also green painted to match the rest of the building. The glass reflects the environment like a mirror. That makes the building mysterious because you can barely look inside.