In Norway and in other countries ambitions for energy efficient buildings are steadily increasing, and there are more and more stringent requirements of technical regulations for how energy is managed in the building. One of the critical points in this development is whether the buildings' actual energy performance can be kept close to the level of their original ambitions. This "reliability gap" between built and achieved (energy) performance of buildings has prompted the development of a broad variety of different concepts, methods and measures that are supposed to close the gap between good intentions and outcome. In this project the current state of the implementation of these concepts, methods and measures in Norwegian non-residential buildings is mapped. The results of this survey are then used to identify a limited number of cases which are studied in depth in order to deepen our understanding of critical success factors and potentials for improvement. Particular attention will be spent on the exploration of improvements that are inspired by recent insights from the fields of product design and social science. The ultimate goal of this project is to contribute to the creation of virtuous circles between buildings and their use and operation in everyday life that are able to stabilize or even improve the buildings' energy efficiency.