For a property manager it is crucial that a reduced environmental impact of a building is not achieved at the cost of an inferior indoor environment. A holistic perspective is therefore necessary. In this paper, a way to measure and display the user satisfaction related to the indoor environment of a building and the environmental impact related to the energy use of the building in the same diagram, the building’s environmental efficiency. It is presented and exemplified by using data from ten Swedish residential buildings. This environmental efficiency index may be used as an overarching objective for environmental management of buildings.