Dutch municipalities have a vital role in creating policy concerning natural gas replacement with sustainable sources in the built environment by 2050, i.e., the so-called heat transition. Over the years, information provision from research and consultants to municipal policymaking in the heat transition has covered mainly the techno-economic dimension. However, a gap remains in the social information provision which enables more comprehensive and inclusive decision-making. This study answers the following research question: What social aspects do municipal policymakers need to consider in municipal heat transition policymaking? We first conducted a systematic literature review concerning energy users' social drivers to transition from natural gas. Second, we conducted a single case study on the policymaking process of heat transition projects in the municipality of Zoetermeer in the Netherlands. The case study involved heat transition actors with various roles in municipal decision-making, including municipal policymakers, researchers, corporations and citizens. Then we developed a framework of the social drivers of energy users to transition from natural gas. Finally, this framework was enriched in an ex-ante evaluation in a semi-structured workshop. Our study shows that energy users' social drivers can be categorized as behavioural belief, normative belief, and control belief. These social drivers combined with the techno-economic aspects shape the energy users' participation in the heat transformation.