This paper explores the effects of the Implementation of the Agile methodology on the success of a project and the project complexity as a mediating variable in the construction industry in the UK. The research study adopted a quantitative survey method drawing on a positivist philosophy and deductive approach to the study. The participants of the research (100 respondents) were surveyed with the help of structured online questionnaire where validated scales were used to measure the use of Agile methodology, the success of the project implemented, and the complexity of this project. The results were analysed statistically based on the SPSS 21 and the PROCESS macro by Preacher and Hayes (2008). The findings showed that Agile approach has a strong positive influence on the project success although project intricacy moderates the connection between the two aspects. These results demonstrate the significance of adapting Agile practices to the complicated project circumstances and imply that managers ought to consider the provisions of complexity to maximize the results. The research paper will add value in both elucidating theory and empirical practice on the Agile topic in dynamic industries.

Keywords: Agile methodology, project success, project complexity, mediation, UK construction industry

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Paper ID: IJMETS-20250630-****

Published Date: 19 Aug 2025
Number of pages: 14-29

https://doi.org/10.5281/zenodo.16890968