To mitigate climate change, a fast reduction in greenhouse gas emissions is required. Although currently changes in the supply side have attracted most attention, these measures are insufficient to deliver on the Paris agreement goals. Recent research featured in the latest IPCC report highlights the potential of demand-side measures. Such measures target changes in consumption patterns and can complement current supply side measures, reducing emissions up to 40 to 70% by 2050. The link between our consumption and well-being is not straightforward. Consumption corridors provide a floor level given by a sufficient level of human need fulfilment, and a ceiling level, above which consumption is unsustainable. Some consumption corridors have already been calculated, but most of these are examples of one product fulfilling only one human need. In addition, which demand-side measures would be required to move within these consumption corridors and how they could be implemented has not been assessed yet. In the DEER project, the effects of demand-side measures on human well-being will be analysed from an environmental, social, economic and policy perspectives. For this, the literature on human needs will be reviewed linking the different human needs to their required products. Products/services related to thermal comfort and mobility in the region of Flanders will be selected. Sufficiency levels for the human needs will be defined and quantified. Applicable demand-side measures will be identified and their impact on carbon and material footprints of the selected needs will be assessed. In parallel, for the selected demand-side measures, economic and social assessments will be performed, including the analysis of consumers’ willingness to adapt. Lastly, the demand-side measures will be fit in policy instruments and mixes that can achieve optimal environmental effectiveness while minimising undesirable side effects will be assessed and presented as policy recommendations.