Early in 1991 in attended home with 13 rooms was established in the Breitenstein House in Zurich as a low threshold survival aid for most severe drug addicts. After only 17 months, before the end of the two-year pilot phase, the facility was closed for economic reasons. The objective of the project laid emphasis on the furtherance of each resident's initiative and responsibility. Using quantitative as well as qualitative instruments the accompanying evaluation came to the conclusion that the attended low threshold accommodation is a realistic completion and an alternative to already existing aids. The institution enabled the drug addicts to reestablish their damaged autonomy and take a constructive step towards the shaping of their lives. In individual cases a substantial structural change could be initiated. The authors concluded that the Breitenstein House was a successful attempt to develop comprehensive strategies in drug policy.