Abstract:This article explores the concept of 'ecologisation of schools' as a form of school development and is based upon a study commissioned by the Federal Austrian Ministry of Education and Cultural Affairs. On the basis of a material and literature search on models and experiences gained from school-based environmental projects in Central Europe and in England, some quality features for an ecologisation process of schools are suggested. These features are the basis of an ecological school development programme in Austria, which is described briefly in this study.