Indicative planning decision using life cycle costs considerations for green building development projects
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Abstract
In the current critical economy, demands have exceeded the mere creation and construction of green buildings. The primary obstacle to expansion in the green building business is the impression of elevated costs linked to these structures. It has been commonly recognised that evaluating project costs based on initial expenditures is inadequate. Consequently, life cycle costs (LCC) aids owners and clients in making informed decisions on building materials during the project’s design phase. The criteria or components of LCC should ideally be established before the decision to advance with the project. Nevertheless, LCC components for sustainable projects are disjointed and the pieces are not organised into an appropriate system. This scenario, exacerbated by the lack of adequate information on LCC components for sustainable projects, poses difficulties for project stakeholders in implementing LCC. Hence, the purpose of this study was to ascertain LCC components and their respective significance in the context of a green building project, in order to inform planning decisions. The primary tool for data collection was a questionnaire survey. A purposive sampling strategy was employed to disseminate the questionnaire to 84 stakeholders engaged in Green Building Index (GBI)-rated office projects in Kuala Lumpur. The survey indicated that the respondents concurred with the 23 elements of LCC as guiding planning criteria for green construction initiatives. The analysis using the relative importance index revealed that, out of the total 23 components, the 10 most important LCC components were materials costs, initial costs, management costs, installation costs, labour costs, green building certification costs, insurance, safety management costs, design and professional costs and equipment costs. The findings are useful in helping green project stakeholders make planning decisions before moving forward with the development of green projects.
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