The purpose of this study is to analyse how to produce a balance between the design and implementation of "green" facilities. It focusses on providing insight into the conditions under which decisions take place, conditions which have to be satisfied if a balance between design and implementation is to be realised and is to influence the way we create and maintain "green" facilities. The study shows that the management of the "green" facilities is indissolubly linked with the design and the implementation.