This study is based on the workshop series conducted in December 2022 (online) and March 2023 (offline in Jakarta) involving stakeholders from the public sector, business, industry association, academia, and non-government organisation. The modelling in this study shows that Indonesia has great potential in implementing resource-saving efforts. The modelling found that Indonesia could reduce around 46% of the cumulative material production if material efficiency improvements are implemented in the residential construction sector. This study supports the role of the Indonesian Ministry of Environment and Forestry (KLHK) in promoting national resource efficiency measures which can accelerate decarbonization of residential construction sector in Indonesia by providing analysis of opportunities and challenges for material efficiency as well as roadmap recommendations for stakeholders, including standards and instruments implementers, including government, financial institutions, related experts or professions, building owners, academia, and other related parties.