The basic principle of the Energy Agreement is that building owners - i.e. housing associations, citizens, companies, institutions and governments - have an interest in and take responsibility for energy saving, but need support in doing so. This requires a coordinated effort by the government, municipalities, contractors, builders, installation companies, banks, building owners and landlords. A combination of information and awareness, unburdening and financing support has been chosen. For the longer term, the Energy Agenda describes the strategy to achieve CO2-neutral low-temperature heating in the Netherlands by 2050. The drastic reduction of the use of natural gas in the built environment is a decision with major consequences. The elaboration of strategies will take place at the regional level, because the alternatives for space heating in the built environment may differ at regional and local level. Energy saving will become part of these regional strategies. 4.2 Realization