The purpose of this study is to explore the IDP process for improved public participation and thereafter assess the barriers to the design and implementation of the IDP. The IDP process was developed to improve strategic planning and ensure that no one is left behind at the grassroots. This was done by promoting public participation in municipal affairs. Many South African municipalities have been struggling to use the IDP process to improve public participation. A mixed-methods approach to investigate the participative IDP process and barriers, using the Greater Tzaneen Municipality (GTM) as a case study was adopted. The methodology included 400 respondents who were chosen through a probability sampling technique and probed to complete the online survey using a closed-ended questionnaire guide, and 10 respondents were also chosen through a non-probability sampling technique and were face-to-face interviewed using a semi-structured interview guide. The key results revealed that poor public participation exists in the study area due to a lack of encouragement from responsible authorities. Many barriers hinder the effective design and implementation of the participative IDP process, such as protests, working in silos, a lack of institutional resources to address the competing needs of communities, and a lack of transparency, accountability, and consultation. Lastly, the lack of oversight by the municipality in the adoption of e-participation has been discovered as a barrier to the design and implementation of participative IDP process during the COVID-19 pandemic. The study concludes by providing a few recommendations to enhance participative IDP process. The GTM should at all times uphold democratic principles by ensuring active and effective public participation, transparency, and accountability in municipal affairs. South African municipalities, especially GTM, should develop innovative institutional and organizational skills to make better use of their resources, solve socioeconomic barriers, and enhance service delivery.