Casa Hollstein, Historical Monument in Osorno, Chile

Casa Hollstein is a three-story house of native wood, built between 1900 and 1910 in Osorno with German-influenced decorative elements. Its two-hectare park borders the Damas River on the west and south, and the whole property, house and grounds, forms the typical zone declared in 1999.

German immigrant Guillermo Hollstein Klickmann built this residence during the period when European settlers arrived in southern Chile territories. The house was constructed when the region underwent major transformation through immigration and the development of new economic activities.

The house is named after Guillermo Hollstein Klickmann, the agricultural entrepreneur who commissioned it and promoted improvements in Osorno. Since 1993 it has housed the School of Architecture and Design of the University of Los Lagos, so its rooms now serve as studios and classrooms rather than as a family home.

The building now houses the School of Architecture and Design of the University of Los Lagos, which oversees its maintenance and preservation. Since it functions as an active university facility, visiting hours and access may depend on academic schedules.

The two-hectare park borders the Damas River on its west and south sides. Besides native trees it holds quince, cherry, eucalyptus, Monterey cypress and Douglas fir, the last identified in Russian sources as the "Oregon pine". The whole property, house and grounds, was declared a typical zone in the same 1999 decree that made the house a National Monument.