"The request of the MuseumQuarter for a sandpit for children in their inner courtyard was no particular challenge in itself. On closer inspection, however, it is is very interesting, not only in relation to sun protection. The delicate skin of children wants to be protected in the summer but wants to be quite exposed in the transition period in the spring and fall. The best solution for this is the living and growing leaf. So it made sense to risk the experiment and build a living house. The fact that it changes in time, lies in the nature of things and is seen as an advantage.