A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of Variation on Project Cost of Selected Building Projects in Lagos State
Variation has been an immanent part of the construction industry and it plays an important role in determining the final cost of construction projects. In Nigeria, Lagos State particularly, variation occurs in large magnitude. This study investigates the effect of variation on project cost in Lagos State and then recommends control measures as provided by respondents. The study involves a preliminary study of the valuation documents of 18 building projects to extract the variation costs in them. These costs were matched with project costs to determine the percentage contribution of variation to project cost. The control measures for variation were based on interview of 35 construction experts. The data for the study was analyzed with frequencies, sums, and percentages. From the documents investigated, a total of 569 variations were identified and 42.2% of them were additional works, 53.1% were change in quality, timing, and dimensions of work and 4.7% were omission of works. The study also found that 12.5% of building projects have 1–5% variation, 43.7% of projects have 5–10% variation, 12.5% of projects have 10–15% variation and 31.3% of projects have more than 15% variation. The recommendations for controlling variations are: clients should provide clear and concise project brief, application of contract price fluctuation system, and involvement of contractors in the design process.
Effects of Variation on Project Cost of Selected Building Projects in Lagos State
Variation has been an immanent part of the construction industry and it plays an important role in determining the final cost of construction projects. In Nigeria, Lagos State particularly, variation occurs in large magnitude. This study investigates the effect of variation on project cost in Lagos State and then recommends control measures as provided by respondents. The study involves a preliminary study of the valuation documents of 18 building projects to extract the variation costs in them. These costs were matched with project costs to determine the percentage contribution of variation to project cost. The control measures for variation were based on interview of 35 construction experts. The data for the study was analyzed with frequencies, sums, and percentages. From the documents investigated, a total of 569 variations were identified and 42.2% of them were additional works, 53.1% were change in quality, timing, and dimensions of work and 4.7% were omission of works. The study also found that 12.5% of building projects have 1–5% variation, 43.7% of projects have 5–10% variation, 12.5% of projects have 10–15% variation and 31.3% of projects have more than 15% variation. The recommendations for controlling variations are: clients should provide clear and concise project brief, application of contract price fluctuation system, and involvement of contractors in the design process.
Effects of Variation on Project Cost of Selected Building Projects in Lagos State
Dosumu, Oluwaseun Sunday (author) / Aigbavboa, Clinton O. (author)
International Conference on Construction and Real Estate Management 2017 ; 2017 ; Guangzhou, China
ICCREM 2017 ; 42-52
2017-11-09
Conference paper
Electronic Resource
English
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