PurposeDespite the extensive research on post-disaster reconstruction projects (PDRP), there is a paucity of studies that examine critical challenges for the project practices in post-war-developing countries, particularly, Africa. The purpose of this research is to investigate the key project management challenges impacting the post-disaster reconstruction projects (PDRP) during the construction and planning stages in Angola, with an aim to fill the knowledge gap.Design/methodology/approachThe primary data was collected from 130 project management practitioners working with planning, provincial government organisations including consultants, and contractors within the Angolan public sectors organisations. Response data was subjected to descriptive statistics, mean scores, and inferential statistics (One sample t-tests) and Kendall's concordance.FindingsThe descriptive and empirical analysis demonstrated a disparity of the ranking of the 21challenges affecting the PDRP among the groups; with statistically significant differences amongst the 10 challenges. Based on the overall sample, 6 out of 10 critical challenges are between (24–25) levels of agreement close to the mean. The results of the mean score ranking indicate that “working with poor or restricted access to location”, “project culture that fits the needs of local people”; “improving the capacity of local government”, “minimizing the negative effects of local people” and “relocation issues by establishing property rights during the reconstruction project” were the five critical challenges to managing PDRP whereas “improving information and communication processes”, “securing adequate resources (material and machinery)”, “dealing with rising costs of materials and labour” were considered to be the least critical.Research limitations/implicationsThe study was restricted to one province and Country (out of 18) namely, Luanda, Angola. Therefore, the findings may not be generalized to public sector organisations operating in different countries with different contexts, political settings and disaster complexities.Practical implicationsThe establishment of challenges in PDRPs helps the key stakeholders by providing the foundation to project teams to address the challenges during planning and construction stages, and thus improving project delivery in the future. Understanding the uniqueness of PDRPs and interdependency of project management from the implementing organization is of particular value for the managers of future projects and other decision-makers, especially in the emerging countries. Moreover, the findings could be used to reflect on the need to formulate policies appropriate to post disaster environments, which among other issues could address building policies, which could include land ownership regulations and procedures together with property rights.Originality/valueThis study contributes to the body of knowledge on the subject within a previously unexplored post-war context with a focus on public organizations perspective. The study provides insights on the challenges affecting the post-disaster reconstruction across the Angolan public sector.