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One important factor is the demand of heating energy. Even though buildings are requiring less and less heating energy per square meter since 1970, the demand of heating energy per capita has remained constant. This is due to the doubling of the average living space per capita from 25m² to 50m² in the same period. To ensure that buildings have a significantly lower impact on the environment and the climate, we need to review personal and legal requirements with respect to potential savings and simplifications.  

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Often, needs can be met without energy- and material-intensive construction measures, e.g., through home exchange offers, new forms of living with sharing concepts, shared use of existing infrastructure, or multiple uses 24/7. In addition to changing usage habits, the solution lies in clever but simple design solutions instead of state-of-the-art technology. Approaches according to the principles of sufficiency are an effective lever. Using creativity regarding existing structures, spaces and resources, we can create quality and meet our needs for the built environment within planetary boundaries.

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Let's build only what we actually need!