Prompt execution of civil engineering project has been a critical challenge due to delay in both approval and construction delays in Nigeria. In previous years, the government establishes several Communal Construction Projects (CCPs) in other to fulfill the developmental plan. Therefore, the prevalent and frequent construction approval and delay in execution is one of the critical issues that affect CCPs Nigeria. Therefore, it is fundamental to study, analyze and explore different aspects that resulted in construction and approval delays in CCPs. The purpose of this research is to investigate those factors that mitigate delays in CCPs in Nigeria and to proffer related measures to defeat this challenge. In accordance to some causal factors explored from the literature and communal annual reports, a total of 200 questionnaire surveys were distributed to CCPs practitioners and 160 of them were completed, while the results and data collected from interviews and stakeholders were also used. A list of 35 causes of delay was gathered from communal annual reports were further categorized based on the three stages of a construction projects lifetime. A factors analysis was used to evaluate quantitatively the difference in factors based on views from 200 stakeholders. The top 5 factors were identified. Weather conditions with a relative importance index (RII) and mean score (MS) of 0.850 and 4.23 respectively, this were found to be the top cause while the factor Claims with RII= 0.798 and MS=3.99 was found to be the least. Furthermore, a structural equation modeling was used to assess the influence degree relationship between latent variables was also conducted. A standardized calculation shows that all these factors during bidding has positively influence bidding. The findings of this research will provide adequate measures to avert approval and delays in construction projects.