House with Chimaeras
Due to the steep slope on which the building is situated, it had to be specially designed out of concrete to fit into its foundations correctly. From the front, the building appears to have only three floors. However, from the rear, all of its six floors can be seen. One part of the building's foundation was made of concrete piles, and the other as a continuous foundation. Usually, these two approaches do not mix well but Horodecki somehow succeeded in overcoming this technical problem.
Foundation (nonprofit)
German regulations allow the creation of any foundation for public or private purposes in keeping with the concept of a "gemeinwohlkonforme Allzweckstiftung" ("general-purpose foundation compatible with the common good"). A foundation should not have commercial activities as its main purpose, but they are permitted if they serve the main purpose of the foundation. There is no minimum starting capital, although in practice at least is considered necessary.