‘Energiebespaarders’ is trying to persuade house owners to restructure their houses into gas free units and thereby contribute to a more sustainable housing environment. They do so by creating a platform called Building Blocks in which local residents, stakeholders and municipalities can efficiently cooperate. The use of sophisticated algorithms and dynamic trading opportunities allows users and stakeholders to skip several unneeded and confusing steps. This simplified process will stimulate house owners in making the first step into a sustainable home.