oa Journal of Construction Project Management and Innovation - A quantitative study on the magnitude of construction claims in construction projects in Nigeria

Volume 8 Number 2
  • ISSN : 2223-7852



The administration of construction projects in Nigeria is plagued by excessive claims which attract additional costs, and as well as leading to an adversarial relationship among project stakeholders. The purpose of this research is to assess construction claims’ relationship with the original contract sum of construction projects in Nigeria. A quantitative approach in which archival data from 53 completed projects involving claims was used. Numerical data collected were analyzed using percentile ranking and Pearson’s correlation. The study revealed that differing site conditions is the most frequent type of claim in construction projects in Nigeria. However, delay claims are uncommon because none of the projects experienced delay claims. The results also showed that contract ambiguity caused the highest number of claims with an average of 22% of the original contract sum while the overall claims averaged 60% of the original contract sum. This study will aid the understanding of the sources and the influence of claims on construction projects. This understanding will inform decisions on the deployment of strategies, approaches, and tools for inspiring construction project management.

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