This hall of residence is added to an existing block. The insertion of student residences in consolidated fabrics of cities, where housing costs hinder this group of the population from easily finding housing, promotes the rejuvenation of these kinds of neighbourhoods while bringing up the residential density. This students guest house will be used to host 278 Erasmus students. It is the first Viennese 'Passiv house'. The façade design is based on a single window type bringing natural daylight into the students apartments. The technical infrastructure of the building consists of a mechanical ventilation system, which is based on geothermics and heat recovery.