Methodology for quantifying the benefits of offsite construction

Offsite construction seeks to move the construction process away from site and take advantage of efficiencies from manufacturing approaches and standardisation. It is portrayed as having the potential to improve the performance of the construction industry and deliver benefits on projects such as better predictability of cost and time, better quality, improved health and safety, and a faster construction programme. This guide proposes a methodology for assessing project performance and outcomes that may be influenced by adopting offsite construction, with a focus on buildings projects. The reader is guided through the process of identifying the metrics for assessment and how these can be influenced by offsite construction in academic and industry literature. This guide also highlights the challenges that can be expected when assessing the performance of construction projects and developing robust benchmarks for comparison.