Energy conservation measures are needed to prevent the world from moving in an unsustainable direction. Actions targeting the building sector are especially vital since it stands for a large share of the total energy use. The objective of this research is, therefore, to provide a framework for using visualization of aggregated energy use over time in a district heating network to stakeholders. This is fulfilled by integrating building information and energy data from a district heating supplier. The integration of building information and energy data makes it possible to identify high energy consumers through a performance visualization interface. Furthermore, the interface is connected to a collaboration hub which offers a communication opportunity between consumers, suppliers, energy advisors and urban planners. Additionally, a stakeholder management approach is proposed to support the energy advisor in managing and selecting the consumers to target with advice and actions. The visualization, collaboration and the stakeholder component of the proposed system creates a Planning Support System (PSS) by which the citizens, energy advisors and urban planners can monitor the use of energy and also suggest actions to decrease the energy use of buildings. The next step of this research will be to evaluate and test the PSS together with energy advisors of 20 municipalities in Sweden.