The foundation aims to preserve the historic, listed buildings and park facilities of the Klein-Riehen estate (section C plots 69 (park including garden hall and Kabinettli), 383 (orangerie), 378 (meadow in the green zone), 379 (properties 393 and 393A) as well as the corporate plots 377 (50%), 376 (25%), 369 (10%) and 370 (one third) of the land register of the municipality of Riehen, 'Bäumlihof') near Basel as a building monument of national and regional importance. In particular, the foundation provides financial contributions to the maintenance and care of the historic and listed buildings and park facilities.